diff --git a/.eslintrc.js b/.eslintrc.js
index 5d701a114..b8663a82b 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 const base = require('@polkadot/dev/config/eslint.cjs');
diff --git a/babel.config.js b/babel.config.js
index b3c0b58f9..3abb0c089 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 module.exports = require('@polkadot/dev/config/babel-config-cjs.cjs');
diff --git a/jest.config.js b/jest.config.js
index f8bcd066b..42a74ea30 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 const config = require('@polkadot/dev/config/jest.cjs');
diff --git a/package.json b/package.json
index caba2489f..0092aa991 100644
--- a/package.json
+++ b/package.json
@@ -21,8 +21,8 @@
   },
   "devDependencies": {
     "@babel/core": "^7.12.10",
-    "@polkadot/dev": "^0.61.19",
-    "@polkadot/ts": "^0.3.58",
+    "@polkadot/dev": "^0.61.22",
+    "@polkadot/ts": "^0.3.59",
     "@types/jest": "^26.0.19"
   },
   "version": "5.2.4-0"
diff --git a/packages/keyring/src/defaults.ts b/packages/keyring/src/defaults.ts
index af18c7243..a60608b2f 100644
--- a/packages/keyring/src/defaults.ts
+++ b/packages/keyring/src/defaults.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // default substrate dev phrase
diff --git a/packages/keyring/src/detectPackage.ts b/packages/keyring/src/detectPackage.ts
index ae633e9ab..9e07c6994 100644
--- a/packages/keyring/src/detectPackage.ts
+++ b/packages/keyring/src/detectPackage.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // For esm, this should be import.meta.url or to get the same behavior as __dirname, we can use
diff --git a/packages/keyring/src/index.spec.ts b/packages/keyring/src/index.spec.ts
index d6d1ef916..fe35f98cd 100644
--- a/packages/keyring/src/index.spec.ts
+++ b/packages/keyring/src/index.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a } from '@polkadot/util';
diff --git a/packages/keyring/src/index.ts b/packages/keyring/src/index.ts
index 3a7779c5f..1f6eda101 100644
--- a/packages/keyring/src/index.ts
+++ b/packages/keyring/src/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import './detectPackage';
diff --git a/packages/keyring/src/keyring.ts b/packages/keyring/src/keyring.ts
index d296f8b1b..818372895 100644
--- a/packages/keyring/src/keyring.ts
+++ b/packages/keyring/src/keyring.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair, KeypairType } from '@polkadot/util-crypto/types';
diff --git a/packages/keyring/src/pair/decode.spec.ts b/packages/keyring/src/pair/decode.spec.ts
index 1fb940f78..822bf0582 100644
--- a/packages/keyring/src/pair/decode.spec.ts
+++ b/packages/keyring/src/pair/decode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createTestPairs } from '../testingPairs';
diff --git a/packages/keyring/src/pair/decode.ts b/packages/keyring/src/pair/decode.ts
index 3d83afdb6..8fda2cf57 100644
--- a/packages/keyring/src/pair/decode.ts
+++ b/packages/keyring/src/pair/decode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringPair$JsonEncodingTypes } from '../types';
diff --git a/packages/keyring/src/pair/defaults.ts b/packages/keyring/src/pair/defaults.ts
index e0290dec0..089f1e49b 100644
--- a/packages/keyring/src/pair/defaults.ts
+++ b/packages/keyring/src/pair/defaults.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringPair$JsonEncodingTypes } from '../types';
diff --git a/packages/keyring/src/pair/encode.spec.ts b/packages/keyring/src/pair/encode.spec.ts
index 3c25c4feb..caf61907b 100644
--- a/packages/keyring/src/pair/encode.spec.ts
+++ b/packages/keyring/src/pair/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createTestPairs } from '../testingPairs';
diff --git a/packages/keyring/src/pair/encode.ts b/packages/keyring/src/pair/encode.ts
index 38fdfd94e..baa824fe1 100644
--- a/packages/keyring/src/pair/encode.ts
+++ b/packages/keyring/src/pair/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { PairInfo } from './types';
diff --git a/packages/keyring/src/pair/index.spec.ts b/packages/keyring/src/pair/index.spec.ts
index 5320d77d5..b51c84353 100644
--- a/packages/keyring/src/pair/index.spec.ts
+++ b/packages/keyring/src/pair/index.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/keyring/src/pair/index.ts b/packages/keyring/src/pair/index.ts
index 907481c51..3a86f33d1 100644
--- a/packages/keyring/src/pair/index.ts
+++ b/packages/keyring/src/pair/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair, KeypairType } from '@polkadot/util-crypto/types';
diff --git a/packages/keyring/src/pair/nobody.ts b/packages/keyring/src/pair/nobody.ts
index 4c0b89ede..bea52d010 100644
--- a/packages/keyring/src/pair/nobody.ts
+++ b/packages/keyring/src/pair/nobody.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringPair, KeyringPair$Json, KeyringPair$Meta } from '../types';
diff --git a/packages/keyring/src/pair/toJson.spec.ts b/packages/keyring/src/pair/toJson.spec.ts
index 1aa405fe0..cf0ca9030 100644
--- a/packages/keyring/src/pair/toJson.spec.ts
+++ b/packages/keyring/src/pair/toJson.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createTestPairs } from '../testingPairs';
diff --git a/packages/keyring/src/pair/toJson.ts b/packages/keyring/src/pair/toJson.ts
index cff1148b7..8c4eb5537 100644
--- a/packages/keyring/src/pair/toJson.ts
+++ b/packages/keyring/src/pair/toJson.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeypairType } from '@polkadot/util-crypto/types';
diff --git a/packages/keyring/src/pair/types.ts b/packages/keyring/src/pair/types.ts
index f308573c6..dfb91dbf6 100644
--- a/packages/keyring/src/pair/types.ts
+++ b/packages/keyring/src/pair/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export interface PairInfo {
diff --git a/packages/keyring/src/pairs.ts b/packages/keyring/src/pairs.ts
index 94279af57..73360f8d9 100644
--- a/packages/keyring/src/pairs.ts
+++ b/packages/keyring/src/pairs.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringPair, KeyringPairs } from './types';
diff --git a/packages/keyring/src/suri.spec.ts b/packages/keyring/src/suri.spec.ts
index fe4aa2b5e..f044ae545 100644
--- a/packages/keyring/src/suri.spec.ts
+++ b/packages/keyring/src/suri.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // From https://github.com/paritytech/substrate/wiki/Secret-URI-Test-Vectors
diff --git a/packages/keyring/src/testing.ts b/packages/keyring/src/testing.ts
index 5d090455e..ae612878c 100644
--- a/packages/keyring/src/testing.ts
+++ b/packages/keyring/src/testing.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringInstance, KeyringOptions } from './types';
diff --git a/packages/keyring/src/testingPairs.spec.ts b/packages/keyring/src/testingPairs.spec.ts
index 534059b1e..5c474231b 100644
--- a/packages/keyring/src/testingPairs.spec.ts
+++ b/packages/keyring/src/testingPairs.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady } from '@polkadot/util-crypto';
diff --git a/packages/keyring/src/testingPairs.ts b/packages/keyring/src/testingPairs.ts
index 90d6dacda..bf1b46433 100644
--- a/packages/keyring/src/testingPairs.ts
+++ b/packages/keyring/src/testingPairs.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeyringOptions, KeyringPair } from './types';
diff --git a/packages/keyring/src/types.ts b/packages/keyring/src/types.ts
index e313edb2e..971cf0d71 100644
--- a/packages/keyring/src/types.ts
+++ b/packages/keyring/src/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from '@polkadot/util-crypto/address/types';
diff --git a/packages/networks/src/crosscheck.spec.ts b/packages/networks/src/crosscheck.spec.ts
index ac9e42998..1d0ea5834 100644
--- a/packages/networks/src/crosscheck.spec.ts
+++ b/packages/networks/src/crosscheck.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/networks authors & contributors
+// Copyright 2017-2021 @polkadot/networks authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Ss58Registry } from './types';
diff --git a/packages/networks/src/index.spec.ts b/packages/networks/src/index.spec.ts
index 88aaa80a2..faa568b8b 100644
--- a/packages/networks/src/index.spec.ts
+++ b/packages/networks/src/index.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/networks authors & contributors
+// Copyright 2017-2021 @polkadot/networks authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import filtered, { available } from '.';
diff --git a/packages/networks/src/index.ts b/packages/networks/src/index.ts
index 4602470a7..09627e5ab 100644
--- a/packages/networks/src/index.ts
+++ b/packages/networks/src/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/networks authors & contributors
+// Copyright 2017-2021 @polkadot/networks authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // This contains exactly the same information as available in (with some extensions)
diff --git a/packages/networks/src/types.ts b/packages/networks/src/types.ts
index e1d3f55d2..0445d3462 100644
--- a/packages/networks/src/types.ts
+++ b/packages/networks/src/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/keyring authors & contributors
+// Copyright 2017-2021 @polkadot/keyring authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export type Icon = 'beachball' | 'empty' | 'jdenticon' | 'polkadot' | 'substrate';
diff --git a/packages/util-crypto/src/address/addressToEvm.spec.ts b/packages/util-crypto/src/address/addressToEvm.spec.ts
index 80425ebdc..e6df43f92 100644
--- a/packages/util-crypto/src/address/addressToEvm.spec.ts
+++ b/packages/util-crypto/src/address/addressToEvm.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/address/addressToEvm.ts b/packages/util-crypto/src/address/addressToEvm.ts
index b3031d827..108256637 100644
--- a/packages/util-crypto/src/address/addressToEvm.ts
+++ b/packages/util-crypto/src/address/addressToEvm.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { decodeAddress } from './decode';
diff --git a/packages/util-crypto/src/address/check.spec.ts b/packages/util-crypto/src/address/check.spec.ts
index 1090c04b2..8edb79b1a 100644
--- a/packages/util-crypto/src/address/check.spec.ts
+++ b/packages/util-crypto/src/address/check.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { checkAddress } from '.';
diff --git a/packages/util-crypto/src/address/check.ts b/packages/util-crypto/src/address/check.ts
index 19a58d0b7..a6a447df4 100644
--- a/packages/util-crypto/src/address/check.ts
+++ b/packages/util-crypto/src/address/check.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/checksum.ts b/packages/util-crypto/src/address/checksum.ts
index 5f7440e98..e57674029 100644
--- a/packages/util-crypto/src/address/checksum.ts
+++ b/packages/util-crypto/src/address/checksum.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { sshash } from './sshash';
diff --git a/packages/util-crypto/src/address/decode.spec.ts b/packages/util-crypto/src/address/decode.spec.ts
index 325c00cc3..54f51a629 100644
--- a/packages/util-crypto/src/address/decode.spec.ts
+++ b/packages/util-crypto/src/address/decode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a, u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/address/decode.ts b/packages/util-crypto/src/address/decode.ts
index 6ac02eeda..b8545b20c 100644
--- a/packages/util-crypto/src/address/decode.ts
+++ b/packages/util-crypto/src/address/decode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/defaults.ts b/packages/util-crypto/src/address/defaults.ts
index fa8287e51..2b571df17 100644
--- a/packages/util-crypto/src/address/defaults.ts
+++ b/packages/util-crypto/src/address/defaults.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { available } from '@polkadot/networks';
diff --git a/packages/util-crypto/src/address/derive.spec.ts b/packages/util-crypto/src/address/derive.spec.ts
index 76d625a7c..af2578b4e 100644
--- a/packages/util-crypto/src/address/derive.spec.ts
+++ b/packages/util-crypto/src/address/derive.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/address/derive.ts b/packages/util-crypto/src/address/derive.ts
index a035ec8ca..8cdc57256 100644
--- a/packages/util-crypto/src/address/derive.ts
+++ b/packages/util-crypto/src/address/derive.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/encode.spec.ts b/packages/util-crypto/src/address/encode.spec.ts
index bdabface8..8256a9b2b 100644
--- a/packages/util-crypto/src/address/encode.spec.ts
+++ b/packages/util-crypto/src/address/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createTestPairs } from '@polkadot/keyring/testingPairs';
diff --git a/packages/util-crypto/src/address/encode.ts b/packages/util-crypto/src/address/encode.ts
index 7c2179d87..2b9f9d847 100644
--- a/packages/util-crypto/src/address/encode.ts
+++ b/packages/util-crypto/src/address/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/encodeDerived.spec.ts b/packages/util-crypto/src/address/encodeDerived.spec.ts
index 6cc3e7dd7..eef9a9bd2 100644
--- a/packages/util-crypto/src/address/encodeDerived.spec.ts
+++ b/packages/util-crypto/src/address/encodeDerived.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { encodeDerivedAddress } from '.';
diff --git a/packages/util-crypto/src/address/encodeDerived.ts b/packages/util-crypto/src/address/encodeDerived.ts
index 20b6f96a9..3336e19c6 100644
--- a/packages/util-crypto/src/address/encodeDerived.ts
+++ b/packages/util-crypto/src/address/encodeDerived.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util-crypto/src/address/encodeMulti.spec.ts b/packages/util-crypto/src/address/encodeMulti.spec.ts
index b3ccf04e9..7878b6938 100644
--- a/packages/util-crypto/src/address/encodeMulti.spec.ts
+++ b/packages/util-crypto/src/address/encodeMulti.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { encodeMultiAddress } from '.';
diff --git a/packages/util-crypto/src/address/encodeMulti.ts b/packages/util-crypto/src/address/encodeMulti.ts
index ac86356eb..44a39a941 100644
--- a/packages/util-crypto/src/address/encodeMulti.ts
+++ b/packages/util-crypto/src/address/encodeMulti.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util-crypto/src/address/eq.spec.ts b/packages/util-crypto/src/address/eq.spec.ts
index 6c25dc448..ccc0cd4e1 100644
--- a/packages/util-crypto/src/address/eq.spec.ts
+++ b/packages/util-crypto/src/address/eq.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createTestPairs } from '@polkadot/keyring/testingPairs';
diff --git a/packages/util-crypto/src/address/eq.ts b/packages/util-crypto/src/address/eq.ts
index f83c8bcc0..b3f619572 100644
--- a/packages/util-crypto/src/address/eq.ts
+++ b/packages/util-crypto/src/address/eq.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aEq } from '@polkadot/util';
diff --git a/packages/util-crypto/src/address/evmToAddress.spec.ts b/packages/util-crypto/src/address/evmToAddress.spec.ts
index dfaae8011..a3385afba 100644
--- a/packages/util-crypto/src/address/evmToAddress.spec.ts
+++ b/packages/util-crypto/src/address/evmToAddress.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { evmToAddress } from '.';
diff --git a/packages/util-crypto/src/address/evmToAddress.ts b/packages/util-crypto/src/address/evmToAddress.ts
index af2af921c..44ec41213 100644
--- a/packages/util-crypto/src/address/evmToAddress.ts
+++ b/packages/util-crypto/src/address/evmToAddress.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { HashType } from '../secp256k1/types';
diff --git a/packages/util-crypto/src/address/index.ts b/packages/util-crypto/src/address/index.ts
index 3d68c388a..7152c5f8f 100644
--- a/packages/util-crypto/src/address/index.ts
+++ b/packages/util-crypto/src/address/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { addressToEvm } from './addressToEvm';
diff --git a/packages/util-crypto/src/address/keyDerived.spec.ts b/packages/util-crypto/src/address/keyDerived.spec.ts
index 9c05cca85..884ee64d2 100644
--- a/packages/util-crypto/src/address/keyDerived.spec.ts
+++ b/packages/util-crypto/src/address/keyDerived.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createKeyDerived } from '.';
diff --git a/packages/util-crypto/src/address/keyDerived.ts b/packages/util-crypto/src/address/keyDerived.ts
index 94763d025..a6ad3dd3e 100644
--- a/packages/util-crypto/src/address/keyDerived.ts
+++ b/packages/util-crypto/src/address/keyDerived.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util-crypto/src/address/keyMulti.spec.ts b/packages/util-crypto/src/address/keyMulti.spec.ts
index 8710f9d16..937491eec 100644
--- a/packages/util-crypto/src/address/keyMulti.spec.ts
+++ b/packages/util-crypto/src/address/keyMulti.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { createKeyMulti } from '.';
diff --git a/packages/util-crypto/src/address/keyMulti.ts b/packages/util-crypto/src/address/keyMulti.ts
index bb33e761a..91be12ee6 100644
--- a/packages/util-crypto/src/address/keyMulti.ts
+++ b/packages/util-crypto/src/address/keyMulti.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util-crypto/src/address/setSS58Format.spec.ts b/packages/util-crypto/src/address/setSS58Format.spec.ts
index b6c60e90b..89086247e 100644
--- a/packages/util-crypto/src/address/setSS58Format.spec.ts
+++ b/packages/util-crypto/src/address/setSS58Format.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { encodeAddress, setSS58Format } from '.';
diff --git a/packages/util-crypto/src/address/setSS58Format.ts b/packages/util-crypto/src/address/setSS58Format.ts
index fcbdc02a2..b309ba60b 100644
--- a/packages/util-crypto/src/address/setSS58Format.ts
+++ b/packages/util-crypto/src/address/setSS58Format.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/sort.spec.ts b/packages/util-crypto/src/address/sort.spec.ts
index 234203ee1..b92d78bae 100644
--- a/packages/util-crypto/src/address/sort.spec.ts
+++ b/packages/util-crypto/src/address/sort.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { sortAddresses } from '.';
diff --git a/packages/util-crypto/src/address/sort.ts b/packages/util-crypto/src/address/sort.ts
index bb9f1ca9f..ccef03b98 100644
--- a/packages/util-crypto/src/address/sort.ts
+++ b/packages/util-crypto/src/address/sort.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Prefix } from './types';
diff --git a/packages/util-crypto/src/address/sshash.ts b/packages/util-crypto/src/address/sshash.ts
index 619f7ab8b..46316b045 100644
--- a/packages/util-crypto/src/address/sshash.ts
+++ b/packages/util-crypto/src/address/sshash.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a, u8aConcat } from '@polkadot/util';
diff --git a/packages/util-crypto/src/address/types.ts b/packages/util-crypto/src/address/types.ts
index 990db4674..0116820d4 100644
--- a/packages/util-crypto/src/address/types.ts
+++ b/packages/util-crypto/src/address/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // FIXME we really want this to map with what is in the allowedSS58 array... i.e. the
diff --git a/packages/util-crypto/src/base32/bs32.ts b/packages/util-crypto/src/base32/bs32.ts
index d54547800..7eed11938 100644
--- a/packages/util-crypto/src/base32/bs32.ts
+++ b/packages/util-crypto/src/base32/bs32.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // https://github.com/multiformats/js-multibase/blob/master/src/constants.js
diff --git a/packages/util-crypto/src/base32/decode.spec.ts b/packages/util-crypto/src/base32/decode.spec.ts
index 261739e1f..32e1b21c8 100644
--- a/packages/util-crypto/src/base32/decode.spec.ts
+++ b/packages/util-crypto/src/base32/decode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToString } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base32/decode.ts b/packages/util-crypto/src/base32/decode.ts
index a5697cb72..cfbc625cc 100644
--- a/packages/util-crypto/src/base32/decode.ts
+++ b/packages/util-crypto/src/base32/decode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // adapted from https://github.com/multiformats/js-multibase/blob/424709195b46ffb1d6f2f69a7707598ebe751e5e/src/rfc4648.js
diff --git a/packages/util-crypto/src/base32/encode.spec.ts b/packages/util-crypto/src/base32/encode.spec.ts
index 0331213b8..38a52985a 100644
--- a/packages/util-crypto/src/base32/encode.spec.ts
+++ b/packages/util-crypto/src/base32/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base58Decode } from '../base58';
diff --git a/packages/util-crypto/src/base32/encode.ts b/packages/util-crypto/src/base32/encode.ts
index 656cbba66..cee8c5ab9 100644
--- a/packages/util-crypto/src/base32/encode.ts
+++ b/packages/util-crypto/src/base32/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // adapted from https://github.com/multiformats/js-multibase/blob/424709195b46ffb1d6f2f69a7707598ebe751e5e/src/rfc4648.js
diff --git a/packages/util-crypto/src/base32/index.ts b/packages/util-crypto/src/base32/index.ts
index d58e73038..9aca6eabe 100644
--- a/packages/util-crypto/src/base32/index.ts
+++ b/packages/util-crypto/src/base32/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/base32/is.ts b/packages/util-crypto/src/base32/is.ts
index 54bbf73c0..94eb7bcec 100644
--- a/packages/util-crypto/src/base32/is.ts
+++ b/packages/util-crypto/src/base32/is.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base32Validate } from './validate';
diff --git a/packages/util-crypto/src/base32/validate.spec.ts b/packages/util-crypto/src/base32/validate.spec.ts
index f85a35b67..6b470bd6a 100644
--- a/packages/util-crypto/src/base32/validate.spec.ts
+++ b/packages/util-crypto/src/base32/validate.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base32Validate } from '.';
diff --git a/packages/util-crypto/src/base32/validate.ts b/packages/util-crypto/src/base32/validate.ts
index f56e23015..b81a400c0 100644
--- a/packages/util-crypto/src/base32/validate.ts
+++ b/packages/util-crypto/src/base32/validate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { validateChars } from '../base58/validate';
diff --git a/packages/util-crypto/src/base58/bs58.ts b/packages/util-crypto/src/base58/bs58.ts
index 3d97a1b8c..a53147c94 100644
--- a/packages/util-crypto/src/base58/bs58.ts
+++ b/packages/util-crypto/src/base58/bs58.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import baseX from 'base-x';
diff --git a/packages/util-crypto/src/base58/decode.ts b/packages/util-crypto/src/base58/decode.ts
index 7e63abbc2..490f7ee23 100644
--- a/packages/util-crypto/src/base58/decode.ts
+++ b/packages/util-crypto/src/base58/decode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bufferToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base58/encode.spec.ts b/packages/util-crypto/src/base58/encode.spec.ts
index 78539f431..e7ff0f449 100644
--- a/packages/util-crypto/src/base58/encode.spec.ts
+++ b/packages/util-crypto/src/base58/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base32Decode } from '../base32';
diff --git a/packages/util-crypto/src/base58/encode.ts b/packages/util-crypto/src/base58/encode.ts
index f70c386a3..394759cf8 100644
--- a/packages/util-crypto/src/base58/encode.ts
+++ b/packages/util-crypto/src/base58/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBuffer, u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base58/index.ts b/packages/util-crypto/src/base58/index.ts
index 6b4d8979e..664603631 100644
--- a/packages/util-crypto/src/base58/index.ts
+++ b/packages/util-crypto/src/base58/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/base58/is.ts b/packages/util-crypto/src/base58/is.ts
index 77a10f570..e2882c523 100644
--- a/packages/util-crypto/src/base58/is.ts
+++ b/packages/util-crypto/src/base58/is.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { testValidator } from '../base32/is';
diff --git a/packages/util-crypto/src/base58/validate.ts b/packages/util-crypto/src/base58/validate.ts
index 5cd250831..a3af5bba7 100644
--- a/packages/util-crypto/src/base58/validate.ts
+++ b/packages/util-crypto/src/base58/validate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base64/decode.spec.ts b/packages/util-crypto/src/base64/decode.spec.ts
index 67476ebf7..8535eb2a9 100644
--- a/packages/util-crypto/src/base64/decode.spec.ts
+++ b/packages/util-crypto/src/base64/decode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base64/decode.ts b/packages/util-crypto/src/base64/decode.ts
index b2db4b771..f6f9eab9a 100644
--- a/packages/util-crypto/src/base64/decode.ts
+++ b/packages/util-crypto/src/base64/decode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bufferToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base64/encode.spec.ts b/packages/util-crypto/src/base64/encode.spec.ts
index ac0543433..f818674cc 100644
--- a/packages/util-crypto/src/base64/encode.spec.ts
+++ b/packages/util-crypto/src/base64/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base64Encode } from '.';
diff --git a/packages/util-crypto/src/base64/encode.ts b/packages/util-crypto/src/base64/encode.ts
index 0c2f5ba1d..03834b801 100644
--- a/packages/util-crypto/src/base64/encode.ts
+++ b/packages/util-crypto/src/base64/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBuffer, u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/base64/index.ts b/packages/util-crypto/src/base64/index.ts
index 85c214a83..3dedb0a5d 100644
--- a/packages/util-crypto/src/base64/index.ts
+++ b/packages/util-crypto/src/base64/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/base64/is.ts b/packages/util-crypto/src/base64/is.ts
index 0856cd429..f6047d078 100644
--- a/packages/util-crypto/src/base64/is.ts
+++ b/packages/util-crypto/src/base64/is.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base64Validate } from './validate';
diff --git a/packages/util-crypto/src/base64/pad.spec.ts b/packages/util-crypto/src/base64/pad.spec.ts
index 416bac92d..d48522062 100644
--- a/packages/util-crypto/src/base64/pad.spec.ts
+++ b/packages/util-crypto/src/base64/pad.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base64Pad } from '.';
diff --git a/packages/util-crypto/src/base64/pad.ts b/packages/util-crypto/src/base64/pad.ts
index ae1b5b79a..788caae5d 100644
--- a/packages/util-crypto/src/base64/pad.ts
+++ b/packages/util-crypto/src/base64/pad.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export function base64Pad (value: string): string {
diff --git a/packages/util-crypto/src/base64/trim.spec.ts b/packages/util-crypto/src/base64/trim.spec.ts
index cf7446e3b..da3631bbf 100644
--- a/packages/util-crypto/src/base64/trim.spec.ts
+++ b/packages/util-crypto/src/base64/trim.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base64Trim } from '.';
diff --git a/packages/util-crypto/src/base64/trim.ts b/packages/util-crypto/src/base64/trim.ts
index 30c9e2356..fb81cfccb 100644
--- a/packages/util-crypto/src/base64/trim.ts
+++ b/packages/util-crypto/src/base64/trim.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export function base64Trim (value: string): string {
diff --git a/packages/util-crypto/src/base64/validate.spec.ts b/packages/util-crypto/src/base64/validate.spec.ts
index c0876cb9e..fa86e3d91 100644
--- a/packages/util-crypto/src/base64/validate.spec.ts
+++ b/packages/util-crypto/src/base64/validate.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { base64Validate } from '.';
diff --git a/packages/util-crypto/src/base64/validate.ts b/packages/util-crypto/src/base64/validate.ts
index b651f3afe..1ddbc5621 100644
--- a/packages/util-crypto/src/base64/validate.ts
+++ b/packages/util-crypto/src/base64/validate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '@polkadot/util';
diff --git a/packages/util-crypto/src/blake2/asHex.spec.ts b/packages/util-crypto/src/blake2/asHex.spec.ts
index 25d313528..1322f5bb6 100644
--- a/packages/util-crypto/src/blake2/asHex.spec.ts
+++ b/packages/util-crypto/src/blake2/asHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/blake2/asHex.ts b/packages/util-crypto/src/blake2/asHex.ts
index d4837ab2a..a943dd2e2 100644
--- a/packages/util-crypto/src/blake2/asHex.ts
+++ b/packages/util-crypto/src/blake2/asHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/blake2/asU8a.spec.ts b/packages/util-crypto/src/blake2/asU8a.spec.ts
index 4555b1318..8fcbe722e 100644
--- a/packages/util-crypto/src/blake2/asU8a.spec.ts
+++ b/packages/util-crypto/src/blake2/asU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/blake2/asU8a.ts b/packages/util-crypto/src/blake2/asU8a.ts
index dcb2d6d44..5858d3d63 100644
--- a/packages/util-crypto/src/blake2/asU8a.ts
+++ b/packages/util-crypto/src/blake2/asU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import js from 'blakejs';
diff --git a/packages/util-crypto/src/blake2/index.ts b/packages/util-crypto/src/blake2/index.ts
index b4b51d709..001f8920a 100644
--- a/packages/util-crypto/src/blake2/index.ts
+++ b/packages/util-crypto/src/blake2/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/crypto.ts b/packages/util-crypto/src/crypto.ts
index 441bfa17a..7f7f3eec7 100644
--- a/packages/util-crypto/src/crypto.ts
+++ b/packages/util-crypto/src/crypto.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isReady, waitReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/cryptoInit.ts b/packages/util-crypto/src/cryptoInit.ts
index dff8b1718..ea6ce7512 100644
--- a/packages/util-crypto/src/cryptoInit.ts
+++ b/packages/util-crypto/src/cryptoInit.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady } from './crypto';
diff --git a/packages/util-crypto/src/detectPackage.ts b/packages/util-crypto/src/detectPackage.ts
index ee0fbad91..a50753d7d 100644
--- a/packages/util-crypto/src/detectPackage.ts
+++ b/packages/util-crypto/src/detectPackage.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // For esm, this should be import.meta.url or to get the same behavior as __dirname, we can use
diff --git a/packages/util-crypto/src/ethereum/encode.spec.ts b/packages/util-crypto/src/ethereum/encode.spec.ts
index 669b13925..4bfebdf7a 100644
--- a/packages/util-crypto/src/ethereum/encode.spec.ts
+++ b/packages/util-crypto/src/ethereum/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { keccakAsU8a } from '../keccak';
diff --git a/packages/util-crypto/src/ethereum/encode.ts b/packages/util-crypto/src/ethereum/encode.ts
index e1437e934..ca25242ed 100644
--- a/packages/util-crypto/src/ethereum/encode.ts
+++ b/packages/util-crypto/src/ethereum/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert, u8aToHex, u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/ethereum/index.ts b/packages/util-crypto/src/ethereum/index.ts
index 42b311b1e..1759386b4 100644
--- a/packages/util-crypto/src/ethereum/index.ts
+++ b/packages/util-crypto/src/ethereum/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { ethereumEncode } from './encode';
diff --git a/packages/util-crypto/src/ethereum/isAddress.spec.ts b/packages/util-crypto/src/ethereum/isAddress.spec.ts
index eefbd4337..90c3c5757 100644
--- a/packages/util-crypto/src/ethereum/isAddress.spec.ts
+++ b/packages/util-crypto/src/ethereum/isAddress.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isEthereumAddress } from './';
diff --git a/packages/util-crypto/src/ethereum/isAddress.ts b/packages/util-crypto/src/ethereum/isAddress.ts
index fe13d0544..9a31d0843 100644
--- a/packages/util-crypto/src/ethereum/isAddress.ts
+++ b/packages/util-crypto/src/ethereum/isAddress.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/ethereum/isChecksum.ts b/packages/util-crypto/src/ethereum/isChecksum.ts
index 7de4c2ebf..7af7f314e 100644
--- a/packages/util-crypto/src/ethereum/isChecksum.ts
+++ b/packages/util-crypto/src/ethereum/isChecksum.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/ethereum/isCheksum.spec.ts b/packages/util-crypto/src/ethereum/isCheksum.spec.ts
index d73367687..927dc7324 100644
--- a/packages/util-crypto/src/ethereum/isCheksum.spec.ts
+++ b/packages/util-crypto/src/ethereum/isCheksum.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isEthereumChecksum } from './';
diff --git a/packages/util-crypto/src/index.ts b/packages/util-crypto/src/index.ts
index 88f39c37a..0d2281497 100644
--- a/packages/util-crypto/src/index.ts
+++ b/packages/util-crypto/src/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import './cryptoInit';
diff --git a/packages/util-crypto/src/keccak/asHex.spec.ts b/packages/util-crypto/src/keccak/asHex.spec.ts
index c5e7a5288..451c79ca4 100644
--- a/packages/util-crypto/src/keccak/asHex.spec.ts
+++ b/packages/util-crypto/src/keccak/asHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/keccak/asHex.ts b/packages/util-crypto/src/keccak/asHex.ts
index 736a820f0..3c3d471f9 100644
--- a/packages/util-crypto/src/keccak/asHex.ts
+++ b/packages/util-crypto/src/keccak/asHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/keccak/asU8a.spec.ts b/packages/util-crypto/src/keccak/asU8a.spec.ts
index 9d5b731e2..b10903bb0 100644
--- a/packages/util-crypto/src/keccak/asU8a.spec.ts
+++ b/packages/util-crypto/src/keccak/asU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/keccak/asU8a.ts b/packages/util-crypto/src/keccak/asU8a.ts
index 781775f31..92064ba86 100644
--- a/packages/util-crypto/src/keccak/asU8a.ts
+++ b/packages/util-crypto/src/keccak/asU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import js from 'js-sha3';
diff --git a/packages/util-crypto/src/keccak/index.ts b/packages/util-crypto/src/keccak/index.ts
index b3972e6ec..03b3f14dd 100644
--- a/packages/util-crypto/src/keccak/index.ts
+++ b/packages/util-crypto/src/keccak/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/key/DeriveJunction.ts b/packages/util-crypto/src/key/DeriveJunction.ts
index 0aec02e65..d4c3097bc 100644
--- a/packages/util-crypto/src/key/DeriveJunction.ts
+++ b/packages/util-crypto/src/key/DeriveJunction.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util-crypto/src/key/extractPath.spec.ts b/packages/util-crypto/src/key/extractPath.spec.ts
index 1313e3497..34131fce7 100644
--- a/packages/util-crypto/src/key/extractPath.spec.ts
+++ b/packages/util-crypto/src/key/extractPath.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { ExtractResult, keyExtractPath } from './extractPath';
diff --git a/packages/util-crypto/src/key/extractPath.ts b/packages/util-crypto/src/key/extractPath.ts
index 1560ee334..d389fcba6 100644
--- a/packages/util-crypto/src/key/extractPath.ts
+++ b/packages/util-crypto/src/key/extractPath.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '@polkadot/util';
diff --git a/packages/util-crypto/src/key/extractSuri.spec.ts b/packages/util-crypto/src/key/extractSuri.spec.ts
index ab7d7e530..6b9cb8bd8 100644
--- a/packages/util-crypto/src/key/extractSuri.spec.ts
+++ b/packages/util-crypto/src/key/extractSuri.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { ExtractResult, keyExtractSuri } from './extractSuri';
diff --git a/packages/util-crypto/src/key/extractSuri.ts b/packages/util-crypto/src/key/extractSuri.ts
index cd03a60c1..67a0bac95 100644
--- a/packages/util-crypto/src/key/extractSuri.ts
+++ b/packages/util-crypto/src/key/extractSuri.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert, isNull } from '@polkadot/util';
diff --git a/packages/util-crypto/src/key/fromPath.ts b/packages/util-crypto/src/key/fromPath.ts
index 5928562f4..66143f603 100644
--- a/packages/util-crypto/src/key/fromPath.ts
+++ b/packages/util-crypto/src/key/fromPath.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair, KeypairType } from '../types';
diff --git a/packages/util-crypto/src/key/hdkdEcdsa.ts b/packages/util-crypto/src/key/hdkdEcdsa.ts
index 47a937abe..50d40de6b 100644
--- a/packages/util-crypto/src/key/hdkdEcdsa.ts
+++ b/packages/util-crypto/src/key/hdkdEcdsa.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/key/hdkdEd25519.ts b/packages/util-crypto/src/key/hdkdEd25519.ts
index 7b0bef222..d8065c761 100644
--- a/packages/util-crypto/src/key/hdkdEd25519.ts
+++ b/packages/util-crypto/src/key/hdkdEd25519.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/key/hdkdSr25519.ts b/packages/util-crypto/src/key/hdkdSr25519.ts
index 7adabc181..4e3c82529 100644
--- a/packages/util-crypto/src/key/hdkdSr25519.ts
+++ b/packages/util-crypto/src/key/hdkdSr25519.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/key/index.ts b/packages/util-crypto/src/key/index.ts
index 9316b010f..618633726 100644
--- a/packages/util-crypto/src/key/index.ts
+++ b/packages/util-crypto/src/key/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/mnemonic/bip39-en.ts b/packages/util-crypto/src/mnemonic/bip39-en.ts
index f2464ec89..99b87dd1b 100644
--- a/packages/util-crypto/src/mnemonic/bip39-en.ts
+++ b/packages/util-crypto/src/mnemonic/bip39-en.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from the bitcoinjs/bip39 source
diff --git a/packages/util-crypto/src/mnemonic/bip39.ts b/packages/util-crypto/src/mnemonic/bip39.ts
index 73b762818..db2449f9f 100644
--- a/packages/util-crypto/src/mnemonic/bip39.ts
+++ b/packages/util-crypto/src/mnemonic/bip39.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from the bitcoinjs/bip39 source
diff --git a/packages/util-crypto/src/mnemonic/generate.spec.ts b/packages/util-crypto/src/mnemonic/generate.spec.ts
index cb21d9398..c73c3a91c 100644
--- a/packages/util-crypto/src/mnemonic/generate.spec.ts
+++ b/packages/util-crypto/src/mnemonic/generate.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady } from '..';
diff --git a/packages/util-crypto/src/mnemonic/generate.ts b/packages/util-crypto/src/mnemonic/generate.ts
index 2098864e2..f431e8bb8 100644
--- a/packages/util-crypto/src/mnemonic/generate.ts
+++ b/packages/util-crypto/src/mnemonic/generate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bip39Generate, isReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/mnemonic/index.ts b/packages/util-crypto/src/mnemonic/index.ts
index ba75c31a6..71662f7ac 100644
--- a/packages/util-crypto/src/mnemonic/index.ts
+++ b/packages/util-crypto/src/mnemonic/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/mnemonic/toEntropy.spec.ts b/packages/util-crypto/src/mnemonic/toEntropy.spec.ts
index 901a204f2..f3b8dc5f2 100644
--- a/packages/util-crypto/src/mnemonic/toEntropy.spec.ts
+++ b/packages/util-crypto/src/mnemonic/toEntropy.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/mnemonic/toEntropy.ts b/packages/util-crypto/src/mnemonic/toEntropy.ts
index 7dfe6932a..322383328 100644
--- a/packages/util-crypto/src/mnemonic/toEntropy.ts
+++ b/packages/util-crypto/src/mnemonic/toEntropy.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bip39ToEntropy, isReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/mnemonic/toLegacySeed.spec.ts b/packages/util-crypto/src/mnemonic/toLegacySeed.spec.ts
index 278942e6f..2f557d2dc 100644
--- a/packages/util-crypto/src/mnemonic/toLegacySeed.spec.ts
+++ b/packages/util-crypto/src/mnemonic/toLegacySeed.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/mnemonic/toLegacySeed.ts b/packages/util-crypto/src/mnemonic/toLegacySeed.ts
index f4b34624f..ab9a3b986 100644
--- a/packages/util-crypto/src/mnemonic/toLegacySeed.ts
+++ b/packages/util-crypto/src/mnemonic/toLegacySeed.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bip39ToSeed, isReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/mnemonic/toMiniSecret.spec.ts b/packages/util-crypto/src/mnemonic/toMiniSecret.spec.ts
index 040022d07..b56ada163 100644
--- a/packages/util-crypto/src/mnemonic/toMiniSecret.spec.ts
+++ b/packages/util-crypto/src/mnemonic/toMiniSecret.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/mnemonic/toMiniSecret.ts b/packages/util-crypto/src/mnemonic/toMiniSecret.ts
index 0acde5469..521c84f55 100644
--- a/packages/util-crypto/src/mnemonic/toMiniSecret.ts
+++ b/packages/util-crypto/src/mnemonic/toMiniSecret.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a, u8aToBuffer } from '@polkadot/util';
diff --git a/packages/util-crypto/src/mnemonic/validate.spec.ts b/packages/util-crypto/src/mnemonic/validate.spec.ts
index c51769ecb..4fdcfb038 100644
--- a/packages/util-crypto/src/mnemonic/validate.spec.ts
+++ b/packages/util-crypto/src/mnemonic/validate.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { cryptoWaitReady } from '..';
diff --git a/packages/util-crypto/src/mnemonic/validate.ts b/packages/util-crypto/src/mnemonic/validate.ts
index 2427cf821..f939428c0 100644
--- a/packages/util-crypto/src/mnemonic/validate.ts
+++ b/packages/util-crypto/src/mnemonic/validate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bip39Validate, isReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/nacl/box/fromSecret.spec.ts b/packages/util-crypto/src/nacl/box/fromSecret.spec.ts
index cde3370dc..38236b6bd 100644
--- a/packages/util-crypto/src/nacl/box/fromSecret.spec.ts
+++ b/packages/util-crypto/src/nacl/box/fromSecret.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclBoxKeypairFromSecret } from '..';
diff --git a/packages/util-crypto/src/nacl/box/fromSecret.ts b/packages/util-crypto/src/nacl/box/fromSecret.ts
index 3a42dea25..993d5d499 100644
--- a/packages/util-crypto/src/nacl/box/fromSecret.ts
+++ b/packages/util-crypto/src/nacl/box/fromSecret.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/decrypt.spec.ts b/packages/util-crypto/src/nacl/decrypt.spec.ts
index 62a55e8d8..8b6ad1cf7 100644
--- a/packages/util-crypto/src/nacl/decrypt.spec.ts
+++ b/packages/util-crypto/src/nacl/decrypt.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclDecrypt, naclEncrypt } from '.';
diff --git a/packages/util-crypto/src/nacl/decrypt.ts b/packages/util-crypto/src/nacl/decrypt.ts
index 462740ec1..1c583a33b 100644
--- a/packages/util-crypto/src/nacl/decrypt.ts
+++ b/packages/util-crypto/src/nacl/decrypt.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/nacl/deriveHard.ts b/packages/util-crypto/src/nacl/deriveHard.ts
index 62b646907..f31546804 100644
--- a/packages/util-crypto/src/nacl/deriveHard.ts
+++ b/packages/util-crypto/src/nacl/deriveHard.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { compactAddLength, stringToU8a, u8aConcat } from '@polkadot/util';
diff --git a/packages/util-crypto/src/nacl/encrypt.spec.ts b/packages/util-crypto/src/nacl/encrypt.spec.ts
index d6d8696f6..2c9fbde7d 100644
--- a/packages/util-crypto/src/nacl/encrypt.spec.ts
+++ b/packages/util-crypto/src/nacl/encrypt.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclEncrypt } from '.';
diff --git a/packages/util-crypto/src/nacl/encrypt.ts b/packages/util-crypto/src/nacl/encrypt.ts
index 4499a6dc6..299d4a978 100644
--- a/packages/util-crypto/src/nacl/encrypt.ts
+++ b/packages/util-crypto/src/nacl/encrypt.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/nacl/index.ts b/packages/util-crypto/src/nacl/index.ts
index 3601c348e..e816842f4 100644
--- a/packages/util-crypto/src/nacl/index.ts
+++ b/packages/util-crypto/src/nacl/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/nacl/keypair/fromRandom.spec.ts b/packages/util-crypto/src/nacl/keypair/fromRandom.spec.ts
index ccaa6f6f8..4691fe9fd 100644
--- a/packages/util-crypto/src/nacl/keypair/fromRandom.spec.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromRandom.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/keypair/fromRandom.ts b/packages/util-crypto/src/nacl/keypair/fromRandom.ts
index efcd5e24c..3412caccf 100644
--- a/packages/util-crypto/src/nacl/keypair/fromRandom.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromRandom.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/keypair/fromSecret.spec.ts b/packages/util-crypto/src/nacl/keypair/fromSecret.spec.ts
index 5693a0d8d..e445bde42 100644
--- a/packages/util-crypto/src/nacl/keypair/fromSecret.spec.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromSecret.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclKeypairFromSecret } from '..';
diff --git a/packages/util-crypto/src/nacl/keypair/fromSecret.ts b/packages/util-crypto/src/nacl/keypair/fromSecret.ts
index fdb28cd69..ed41bafb6 100644
--- a/packages/util-crypto/src/nacl/keypair/fromSecret.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromSecret.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/keypair/fromSeed.spec.ts b/packages/util-crypto/src/nacl/keypair/fromSeed.spec.ts
index 96f56029d..ae3123f09 100644
--- a/packages/util-crypto/src/nacl/keypair/fromSeed.spec.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromSeed.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/nacl/keypair/fromSeed.ts b/packages/util-crypto/src/nacl/keypair/fromSeed.ts
index 0c40863ae..074fb2e81 100644
--- a/packages/util-crypto/src/nacl/keypair/fromSeed.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromSeed.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/keypair/fromString.spec.ts b/packages/util-crypto/src/nacl/keypair/fromString.spec.ts
index ab7f3948b..c4bbbea01 100644
--- a/packages/util-crypto/src/nacl/keypair/fromString.spec.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromString.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclKeypairFromString } from '..';
diff --git a/packages/util-crypto/src/nacl/keypair/fromString.ts b/packages/util-crypto/src/nacl/keypair/fromString.ts
index 33556e837..c82c3e7bb 100644
--- a/packages/util-crypto/src/nacl/keypair/fromString.ts
+++ b/packages/util-crypto/src/nacl/keypair/fromString.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/nacl/open.spec.ts b/packages/util-crypto/src/nacl/open.spec.ts
index a56ff7f92..902300928 100644
--- a/packages/util-crypto/src/nacl/open.spec.ts
+++ b/packages/util-crypto/src/nacl/open.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { keyExtractPath } from '../key';
diff --git a/packages/util-crypto/src/nacl/open.ts b/packages/util-crypto/src/nacl/open.ts
index 2d6e9e622..9cfbb27b3 100644
--- a/packages/util-crypto/src/nacl/open.ts
+++ b/packages/util-crypto/src/nacl/open.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/nacl/seal.spec.ts b/packages/util-crypto/src/nacl/seal.spec.ts
index 7b6fbb34c..2f88286e6 100644
--- a/packages/util-crypto/src/nacl/seal.spec.ts
+++ b/packages/util-crypto/src/nacl/seal.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { naclBoxKeypairFromSecret, naclKeypairFromString, naclSeal } from '.';
diff --git a/packages/util-crypto/src/nacl/seal.ts b/packages/util-crypto/src/nacl/seal.ts
index f96e281ea..9ddd4d1ec 100644
--- a/packages/util-crypto/src/nacl/seal.ts
+++ b/packages/util-crypto/src/nacl/seal.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/nacl/sign.spec.ts b/packages/util-crypto/src/nacl/sign.spec.ts
index 6994fd20e..788e151c7 100644
--- a/packages/util-crypto/src/nacl/sign.spec.ts
+++ b/packages/util-crypto/src/nacl/sign.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/nacl/sign.ts b/packages/util-crypto/src/nacl/sign.ts
index 8ee65a3bb..2ff1be0af 100644
--- a/packages/util-crypto/src/nacl/sign.ts
+++ b/packages/util-crypto/src/nacl/sign.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/nacl/verify.spec.ts b/packages/util-crypto/src/nacl/verify.spec.ts
index 04ce897ed..57cf211ab 100644
--- a/packages/util-crypto/src/nacl/verify.spec.ts
+++ b/packages/util-crypto/src/nacl/verify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/nacl/verify.ts b/packages/util-crypto/src/nacl/verify.ts
index 6d292423f..c2650cac7 100644
--- a/packages/util-crypto/src/nacl/verify.ts
+++ b/packages/util-crypto/src/nacl/verify.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/pbkdf2/encode.spec.ts b/packages/util-crypto/src/pbkdf2/encode.spec.ts
index 9a9abdbd7..ee9938e6b 100644
--- a/packages/util-crypto/src/pbkdf2/encode.spec.ts
+++ b/packages/util-crypto/src/pbkdf2/encode.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aEq, u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/pbkdf2/encode.ts b/packages/util-crypto/src/pbkdf2/encode.ts
index 68a418729..71529e317 100644
--- a/packages/util-crypto/src/pbkdf2/encode.ts
+++ b/packages/util-crypto/src/pbkdf2/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/pbkdf2/index.ts b/packages/util-crypto/src/pbkdf2/index.ts
index 4ce16d7c3..51597bd61 100644
--- a/packages/util-crypto/src/pbkdf2/index.ts
+++ b/packages/util-crypto/src/pbkdf2/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { pbkdf2Encode } from './encode';
diff --git a/packages/util-crypto/src/pbkdf2/pbkdf2.ts b/packages/util-crypto/src/pbkdf2/pbkdf2.ts
index 65e1d1579..f72b3d41b 100644
--- a/packages/util-crypto/src/pbkdf2/pbkdf2.ts
+++ b/packages/util-crypto/src/pbkdf2/pbkdf2.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from https://gist.github.com/calvinmetcalf/91e8e84dc63c75f2aa53
diff --git a/packages/util-crypto/src/random/asHex.spec.ts b/packages/util-crypto/src/random/asHex.spec.ts
index d7716204c..c978b4405 100644
--- a/packages/util-crypto/src/random/asHex.spec.ts
+++ b/packages/util-crypto/src/random/asHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/random/asHex.ts b/packages/util-crypto/src/random/asHex.ts
index bd95b3812..99501b254 100644
--- a/packages/util-crypto/src/random/asHex.ts
+++ b/packages/util-crypto/src/random/asHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/random/asNumber.spec.ts b/packages/util-crypto/src/random/asNumber.spec.ts
index 787effb5d..cd154f3c0 100644
--- a/packages/util-crypto/src/random/asNumber.spec.ts
+++ b/packages/util-crypto/src/random/asNumber.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { randomAsNumber } from '.';
diff --git a/packages/util-crypto/src/random/asNumber.ts b/packages/util-crypto/src/random/asNumber.ts
index a14f60c07..d00d5054b 100644
--- a/packages/util-crypto/src/random/asNumber.ts
+++ b/packages/util-crypto/src/random/asNumber.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util-crypto/src/random/asU8a.spec.ts b/packages/util-crypto/src/random/asU8a.spec.ts
index 46f55bee7..aab777544 100644
--- a/packages/util-crypto/src/random/asU8a.spec.ts
+++ b/packages/util-crypto/src/random/asU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/random/asU8a.ts b/packages/util-crypto/src/random/asU8a.ts
index 657707fca..4cf28d468 100644
--- a/packages/util-crypto/src/random/asU8a.ts
+++ b/packages/util-crypto/src/random/asU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { getRandomValues } from '@polkadot/x-randomvalues';
diff --git a/packages/util-crypto/src/random/index.ts b/packages/util-crypto/src/random/index.ts
index fb4952b8d..e6fc45065 100644
--- a/packages/util-crypto/src/random/index.ts
+++ b/packages/util-crypto/src/random/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/schnorrkel/deriveHard.ts b/packages/util-crypto/src/schnorrkel/deriveHard.ts
index bc7ee477c..e35b1fe05 100644
--- a/packages/util-crypto/src/schnorrkel/deriveHard.ts
+++ b/packages/util-crypto/src/schnorrkel/deriveHard.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/schnorrkel/derivePublic.ts b/packages/util-crypto/src/schnorrkel/derivePublic.ts
index b94d29aa9..17a33d4f5 100644
--- a/packages/util-crypto/src/schnorrkel/derivePublic.ts
+++ b/packages/util-crypto/src/schnorrkel/derivePublic.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { sr25519DerivePublicSoft } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/schnorrkel/deriveSoft.ts b/packages/util-crypto/src/schnorrkel/deriveSoft.ts
index 82af5f11e..0f251e82e 100644
--- a/packages/util-crypto/src/schnorrkel/deriveSoft.ts
+++ b/packages/util-crypto/src/schnorrkel/deriveSoft.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/schnorrkel/index.ts b/packages/util-crypto/src/schnorrkel/index.ts
index ea24c3a71..b756a2dc7 100644
--- a/packages/util-crypto/src/schnorrkel/index.ts
+++ b/packages/util-crypto/src/schnorrkel/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { schnorrkelDeriveHard } from './deriveHard';
diff --git a/packages/util-crypto/src/schnorrkel/keypair/fromSeed.spec.ts b/packages/util-crypto/src/schnorrkel/keypair/fromSeed.spec.ts
index 96ce74470..6e14ac004 100644
--- a/packages/util-crypto/src/schnorrkel/keypair/fromSeed.spec.ts
+++ b/packages/util-crypto/src/schnorrkel/keypair/fromSeed.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a, u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/schnorrkel/keypair/fromSeed.ts b/packages/util-crypto/src/schnorrkel/keypair/fromSeed.ts
index 50cec884f..58a351587 100644
--- a/packages/util-crypto/src/schnorrkel/keypair/fromSeed.ts
+++ b/packages/util-crypto/src/schnorrkel/keypair/fromSeed.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/schnorrkel/keypair/fromU8a.ts b/packages/util-crypto/src/schnorrkel/keypair/fromU8a.ts
index 611ec32d5..68b68c78b 100644
--- a/packages/util-crypto/src/schnorrkel/keypair/fromU8a.ts
+++ b/packages/util-crypto/src/schnorrkel/keypair/fromU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/schnorrkel/keypair/testing.ts b/packages/util-crypto/src/schnorrkel/keypair/testing.ts
index 98374c621..b08ececd9 100644
--- a/packages/util-crypto/src/schnorrkel/keypair/testing.ts
+++ b/packages/util-crypto/src/schnorrkel/keypair/testing.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // mnemonic, entropy, seed, secret (expanded)
diff --git a/packages/util-crypto/src/schnorrkel/keypair/toU8a.ts b/packages/util-crypto/src/schnorrkel/keypair/toU8a.ts
index 1f8ac0d28..567afbd02 100644
--- a/packages/util-crypto/src/schnorrkel/keypair/toU8a.ts
+++ b/packages/util-crypto/src/schnorrkel/keypair/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/schnorrkel/sign.ts b/packages/util-crypto/src/schnorrkel/sign.ts
index fd8f90862..56c231db2 100644
--- a/packages/util-crypto/src/schnorrkel/sign.ts
+++ b/packages/util-crypto/src/schnorrkel/sign.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/schnorrkel/signVerify.spec.ts b/packages/util-crypto/src/schnorrkel/signVerify.spec.ts
index 560fb7883..4a8bb8ee3 100644
--- a/packages/util-crypto/src/schnorrkel/signVerify.spec.ts
+++ b/packages/util-crypto/src/schnorrkel/signVerify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/schnorrkel/verify.ts b/packages/util-crypto/src/schnorrkel/verify.ts
index 4773286a9..8b82a7f3e 100644
--- a/packages/util-crypto/src/schnorrkel/verify.ts
+++ b/packages/util-crypto/src/schnorrkel/verify.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert, u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/scrypt/defaults.ts b/packages/util-crypto/src/scrypt/defaults.ts
index 8c8a72b33..e33bf8d8c 100644
--- a/packages/util-crypto/src/scrypt/defaults.ts
+++ b/packages/util-crypto/src/scrypt/defaults.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 const DEFAULT_PARAMS = {
diff --git a/packages/util-crypto/src/scrypt/encode.ts b/packages/util-crypto/src/scrypt/encode.ts
index 2f08ce2ee..f76373b01 100644
--- a/packages/util-crypto/src/scrypt/encode.ts
+++ b/packages/util-crypto/src/scrypt/encode.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Params } from './types';
diff --git a/packages/util-crypto/src/scrypt/fromU8a.ts b/packages/util-crypto/src/scrypt/fromU8a.ts
index c7bc921fd..d5585b717 100644
--- a/packages/util-crypto/src/scrypt/fromU8a.ts
+++ b/packages/util-crypto/src/scrypt/fromU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Params } from './types';
diff --git a/packages/util-crypto/src/scrypt/index.ts b/packages/util-crypto/src/scrypt/index.ts
index 6529fa154..37eef13ee 100644
--- a/packages/util-crypto/src/scrypt/index.ts
+++ b/packages/util-crypto/src/scrypt/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { scryptEncode } from './encode';
diff --git a/packages/util-crypto/src/scrypt/toU8a.ts b/packages/util-crypto/src/scrypt/toU8a.ts
index 9bda79834..2d433f744 100644
--- a/packages/util-crypto/src/scrypt/toU8a.ts
+++ b/packages/util-crypto/src/scrypt/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Params } from './types';
diff --git a/packages/util-crypto/src/scrypt/types.ts b/packages/util-crypto/src/scrypt/types.ts
index aae4ba141..f911972b2 100644
--- a/packages/util-crypto/src/scrypt/types.ts
+++ b/packages/util-crypto/src/scrypt/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export interface Params {
diff --git a/packages/util-crypto/src/secp256k1/compress.spec.ts b/packages/util-crypto/src/secp256k1/compress.spec.ts
index dbe399d14..b2e4cf2e1 100644
--- a/packages/util-crypto/src/secp256k1/compress.spec.ts
+++ b/packages/util-crypto/src/secp256k1/compress.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/compress.ts b/packages/util-crypto/src/secp256k1/compress.ts
index 928fc8033..79c817800 100644
--- a/packages/util-crypto/src/secp256k1/compress.ts
+++ b/packages/util-crypto/src/secp256k1/compress.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/deriveHard.ts b/packages/util-crypto/src/secp256k1/deriveHard.ts
index 289758ff0..313f91692 100644
--- a/packages/util-crypto/src/secp256k1/deriveHard.ts
+++ b/packages/util-crypto/src/secp256k1/deriveHard.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { compactAddLength, stringToU8a, u8aConcat } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/expand.spec.ts b/packages/util-crypto/src/secp256k1/expand.spec.ts
index d633e8bda..a69400bf7 100644
--- a/packages/util-crypto/src/secp256k1/expand.spec.ts
+++ b/packages/util-crypto/src/secp256k1/expand.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/expand.ts b/packages/util-crypto/src/secp256k1/expand.ts
index 78fec13a9..38b0897aa 100644
--- a/packages/util-crypto/src/secp256k1/expand.ts
+++ b/packages/util-crypto/src/secp256k1/expand.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert, bnToU8a, u8aConcat } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/hasher.spec.ts b/packages/util-crypto/src/secp256k1/hasher.spec.ts
index 7010e224c..10e22f1a5 100644
--- a/packages/util-crypto/src/secp256k1/hasher.spec.ts
+++ b/packages/util-crypto/src/secp256k1/hasher.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { secp256k1Hasher } from './hasher';
diff --git a/packages/util-crypto/src/secp256k1/hasher.ts b/packages/util-crypto/src/secp256k1/hasher.ts
index 279b53623..929eecc62 100644
--- a/packages/util-crypto/src/secp256k1/hasher.ts
+++ b/packages/util-crypto/src/secp256k1/hasher.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { HashType } from './types';
diff --git a/packages/util-crypto/src/secp256k1/index.ts b/packages/util-crypto/src/secp256k1/index.ts
index b0b80f4d2..44e483dec 100644
--- a/packages/util-crypto/src/secp256k1/index.ts
+++ b/packages/util-crypto/src/secp256k1/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { secp256k1Compress } from './compress';
diff --git a/packages/util-crypto/src/secp256k1/keypair/fromSeed.spec.ts b/packages/util-crypto/src/secp256k1/keypair/fromSeed.spec.ts
index 6d1128b20..120a28285 100644
--- a/packages/util-crypto/src/secp256k1/keypair/fromSeed.spec.ts
+++ b/packages/util-crypto/src/secp256k1/keypair/fromSeed.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/keypair/fromSeed.ts b/packages/util-crypto/src/secp256k1/keypair/fromSeed.ts
index 3dae9dee5..95142372b 100644
--- a/packages/util-crypto/src/secp256k1/keypair/fromSeed.ts
+++ b/packages/util-crypto/src/secp256k1/keypair/fromSeed.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../../types';
diff --git a/packages/util-crypto/src/secp256k1/recover.spec.ts b/packages/util-crypto/src/secp256k1/recover.spec.ts
index 0ee7d0d92..f4e1e5b8f 100644
--- a/packages/util-crypto/src/secp256k1/recover.spec.ts
+++ b/packages/util-crypto/src/secp256k1/recover.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex, u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/recover.ts b/packages/util-crypto/src/secp256k1/recover.ts
index 705387e1a..68fbbc59e 100644
--- a/packages/util-crypto/src/secp256k1/recover.ts
+++ b/packages/util-crypto/src/secp256k1/recover.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { secp256k1 } from './secp256k1';
diff --git a/packages/util-crypto/src/secp256k1/secp256k1.ts b/packages/util-crypto/src/secp256k1/secp256k1.ts
index 8628cabfa..64d5b1c3e 100644
--- a/packages/util-crypto/src/secp256k1/secp256k1.ts
+++ b/packages/util-crypto/src/secp256k1/secp256k1.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import elliptic from 'elliptic';
diff --git a/packages/util-crypto/src/secp256k1/sign.ts b/packages/util-crypto/src/secp256k1/sign.ts
index 6b2811c40..e800a1494 100644
--- a/packages/util-crypto/src/secp256k1/sign.ts
+++ b/packages/util-crypto/src/secp256k1/sign.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Keypair } from '../types';
diff --git a/packages/util-crypto/src/secp256k1/signVerify.spec.ts b/packages/util-crypto/src/secp256k1/signVerify.spec.ts
index 50bfa7939..04b3ea75a 100644
--- a/packages/util-crypto/src/secp256k1/signVerify.spec.ts
+++ b/packages/util-crypto/src/secp256k1/signVerify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/secp256k1/types.ts b/packages/util-crypto/src/secp256k1/types.ts
index f3a5809fc..4b4eade36 100644
--- a/packages/util-crypto/src/secp256k1/types.ts
+++ b/packages/util-crypto/src/secp256k1/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export type HashType = 'blake2' | 'keccak';
diff --git a/packages/util-crypto/src/secp256k1/verify.spec.ts b/packages/util-crypto/src/secp256k1/verify.spec.ts
index 311ecfa0a..60e28ea1f 100644
--- a/packages/util-crypto/src/secp256k1/verify.spec.ts
+++ b/packages/util-crypto/src/secp256k1/verify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { secp256k1Verify } from '.';
diff --git a/packages/util-crypto/src/secp256k1/verify.ts b/packages/util-crypto/src/secp256k1/verify.ts
index aa662b621..b596ef80f 100644
--- a/packages/util-crypto/src/secp256k1/verify.ts
+++ b/packages/util-crypto/src/secp256k1/verify.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { HashType } from './types';
diff --git a/packages/util-crypto/src/sha512/asU8a.spec.ts b/packages/util-crypto/src/sha512/asU8a.spec.ts
index 63b4870f8..a1a5781a6 100644
--- a/packages/util-crypto/src/sha512/asU8a.spec.ts
+++ b/packages/util-crypto/src/sha512/asU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/sha512/asU8a.ts b/packages/util-crypto/src/sha512/asU8a.ts
index fcb2ee21f..90d18d8c4 100644
--- a/packages/util-crypto/src/sha512/asU8a.ts
+++ b/packages/util-crypto/src/sha512/asU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nacl from 'tweetnacl';
diff --git a/packages/util-crypto/src/sha512/index.ts b/packages/util-crypto/src/sha512/index.ts
index 3fac1b3f8..89679488f 100644
--- a/packages/util-crypto/src/sha512/index.ts
+++ b/packages/util-crypto/src/sha512/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/signature/index.ts b/packages/util-crypto/src/signature/index.ts
index 809fac0f8..9a86c995b 100644
--- a/packages/util-crypto/src/signature/index.ts
+++ b/packages/util-crypto/src/signature/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/signature/verify.spec.ts b/packages/util-crypto/src/signature/verify.spec.ts
index f70d92993..25affd66a 100644
--- a/packages/util-crypto/src/signature/verify.spec.ts
+++ b/packages/util-crypto/src/signature/verify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a, stringToU8a, u8aConcat, u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/signature/verify.ts b/packages/util-crypto/src/signature/verify.ts
index 110ad0f08..d2404efb9 100644
--- a/packages/util-crypto/src/signature/verify.ts
+++ b/packages/util-crypto/src/signature/verify.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { KeypairType, VerifyResult } from '../types';
diff --git a/packages/util-crypto/src/types.ts b/packages/util-crypto/src/types.ts
index b22a1eda7..59ac8a18e 100644
--- a/packages/util-crypto/src/types.ts
+++ b/packages/util-crypto/src/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export interface Keypair {
diff --git a/packages/util-crypto/src/xxhash/asHex.spec.ts b/packages/util-crypto/src/xxhash/asHex.spec.ts
index fcb61daee..df6d28859 100644
--- a/packages/util-crypto/src/xxhash/asHex.spec.ts
+++ b/packages/util-crypto/src/xxhash/asHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { waitReady } from '@polkadot/wasm-crypto';
diff --git a/packages/util-crypto/src/xxhash/asHex.ts b/packages/util-crypto/src/xxhash/asHex.ts
index f8edbd641..badba9bfe 100644
--- a/packages/util-crypto/src/xxhash/asHex.ts
+++ b/packages/util-crypto/src/xxhash/asHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '@polkadot/util';
diff --git a/packages/util-crypto/src/xxhash/asU8a.spec.ts b/packages/util-crypto/src/xxhash/asU8a.spec.ts
index 19b8d973b..66d07f09c 100644
--- a/packages/util-crypto/src/xxhash/asU8a.spec.ts
+++ b/packages/util-crypto/src/xxhash/asU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/xxhash/asU8a.ts b/packages/util-crypto/src/xxhash/asU8a.ts
index 43e3e8098..445738961 100644
--- a/packages/util-crypto/src/xxhash/asU8a.ts
+++ b/packages/util-crypto/src/xxhash/asU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from '@polkadot/util';
diff --git a/packages/util-crypto/src/xxhash/index.ts b/packages/util-crypto/src/xxhash/index.ts
index e5c1cc055..114a11a7b 100644
--- a/packages/util-crypto/src/xxhash/index.ts
+++ b/packages/util-crypto/src/xxhash/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asBn.spec.ts b/packages/util-crypto/src/xxhash/xxhash64/asBn.spec.ts
index e96d73f15..235149f81 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asBn.spec.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asBn.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xxhash64AsBn from './asBn';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asBn.ts b/packages/util-crypto/src/xxhash/xxhash64/asBn.ts
index 96987b81d..c62138465 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asBn.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asBn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asHex.spec.ts b/packages/util-crypto/src/xxhash/xxhash64/asHex.spec.ts
index 34de6c867..d3f40da5e 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asHex.spec.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xxhash64AsHex from './asHex';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asHex.ts b/packages/util-crypto/src/xxhash/xxhash64/asHex.ts
index e6a477826..e71a40f63 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asHex.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexAddPrefix } from '@polkadot/util';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asRaw.spec.ts b/packages/util-crypto/src/xxhash/xxhash64/asRaw.spec.ts
index 38c3438d6..6102c1739 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asRaw.spec.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asRaw.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xxhash64AsRaw from './asRaw';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts b/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts
index 6207d249b..526e8102d 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asRaw.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xxhash64AsValue from './asValue';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asValue.spec.ts b/packages/util-crypto/src/xxhash/xxhash64/asValue.spec.ts
index 60e058800..e7c8e7996 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asValue.spec.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asValue.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xxhash64AsValue from './asValue';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/asValue.ts b/packages/util-crypto/src/xxhash/xxhash64/asValue.ts
index c5fa6dc23..444228391 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/asValue.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/asValue.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import xx from 'xxhashjs';
diff --git a/packages/util-crypto/src/xxhash/xxhash64/xxhash64.d.ts b/packages/util-crypto/src/xxhash/xxhash64/xxhash64.d.ts
index 48b295abf..3e86c4a7e 100644
--- a/packages/util-crypto/src/xxhash/xxhash64/xxhash64.d.ts
+++ b/packages/util-crypto/src/xxhash/xxhash64/xxhash64.d.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// Copyright 2017-2021 @polkadot/util-crypto authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 declare module 'xxhashjs' {
diff --git a/packages/util/src/array/chunk.spec.ts b/packages/util/src/array/chunk.spec.ts
index 76d839fc2..0c5e8f14e 100644
--- a/packages/util/src/array/chunk.spec.ts
+++ b/packages/util/src/array/chunk.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { arrayChunk } from '.';
diff --git a/packages/util/src/array/chunk.ts b/packages/util/src/array/chunk.ts
index cbf2f5757..efad3beb7 100644
--- a/packages/util/src/array/chunk.ts
+++ b/packages/util/src/array/chunk.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/array/filter.spec.ts b/packages/util/src/array/filter.spec.ts
index b65d1b3e0..8e0f6a398 100644
--- a/packages/util/src/array/filter.spec.ts
+++ b/packages/util/src/array/filter.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { arrayFilter } from '.';
diff --git a/packages/util/src/array/filter.ts b/packages/util/src/array/filter.ts
index 188212eb4..1f09ec166 100644
--- a/packages/util/src/array/filter.ts
+++ b/packages/util/src/array/filter.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isNull } from '../is/null';
diff --git a/packages/util/src/array/flatten.spec.ts b/packages/util/src/array/flatten.spec.ts
index 94ddf0f7e..8ff4ac078 100644
--- a/packages/util/src/array/flatten.spec.ts
+++ b/packages/util/src/array/flatten.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { arrayFlatten } from '.';
diff --git a/packages/util/src/array/flatten.ts b/packages/util/src/array/flatten.ts
index ef80a51f4..3160e7e98 100644
--- a/packages/util/src/array/flatten.ts
+++ b/packages/util/src/array/flatten.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // This is supposed to be a faster concat...
diff --git a/packages/util/src/array/index.ts b/packages/util/src/array/index.ts
index b6c37ad77..39b322414 100644
--- a/packages/util/src/array/index.ts
+++ b/packages/util/src/array/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/assert.spec.ts b/packages/util/src/assert.spec.ts
index 38651567f..d70ec75d4 100644
--- a/packages/util/src/assert.spec.ts
+++ b/packages/util/src/assert.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '.';
diff --git a/packages/util/src/assert.ts b/packages/util/src/assert.ts
index c8ea83c82..59db28dee 100644
--- a/packages/util/src/assert.ts
+++ b/packages/util/src/assert.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isFunction } from './is/function';
diff --git a/packages/util/src/bn/consts.spec.ts b/packages/util/src/bn/consts.spec.ts
index 995629c8e..0e8409cdb 100644
--- a/packages/util/src/bn/consts.spec.ts
+++ b/packages/util/src/bn/consts.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/consts.ts b/packages/util/src/bn/consts.ts
index 9379f3dad..867346b30 100644
--- a/packages/util/src/bn/consts.ts
+++ b/packages/util/src/bn/consts.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/fromHex.spec.ts b/packages/util/src/bn/fromHex.spec.ts
index be0698cd7..07308d866 100644
--- a/packages/util/src/bn/fromHex.spec.ts
+++ b/packages/util/src/bn/fromHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isFunction } from '../is/function';
diff --git a/packages/util/src/bn/fromHex.ts b/packages/util/src/bn/fromHex.ts
index 519b2e6dd..cbd238e6b 100644
--- a/packages/util/src/bn/fromHex.ts
+++ b/packages/util/src/bn/fromHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { hexToBn as bnFromHex } from '../hex/toBn';
diff --git a/packages/util/src/bn/index.ts b/packages/util/src/bn/index.ts
index c423d3c6c..1a888f4c5 100644
--- a/packages/util/src/bn/index.ts
+++ b/packages/util/src/bn/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/bn/max.spec.ts b/packages/util/src/bn/max.spec.ts
index 2be8c49c9..812176e89 100644
--- a/packages/util/src/bn/max.spec.ts
+++ b/packages/util/src/bn/max.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/max.ts b/packages/util/src/bn/max.ts
index 1f44ac9ca..1650d7ed1 100644
--- a/packages/util/src/bn/max.ts
+++ b/packages/util/src/bn/max.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/bn/min.spec.ts b/packages/util/src/bn/min.spec.ts
index 27ccdded3..27dd821ac 100644
--- a/packages/util/src/bn/min.spec.ts
+++ b/packages/util/src/bn/min.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/min.ts b/packages/util/src/bn/min.ts
index db291c2ff..7b94ef6b8 100644
--- a/packages/util/src/bn/min.ts
+++ b/packages/util/src/bn/min.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/bn/sqrt.spec.ts b/packages/util/src/bn/sqrt.spec.ts
index 816fd5819..ec9c07747 100644
--- a/packages/util/src/bn/sqrt.spec.ts
+++ b/packages/util/src/bn/sqrt.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/sqrt.ts b/packages/util/src/bn/sqrt.ts
index e70e6ae4b..9baf34fc9 100644
--- a/packages/util/src/bn/sqrt.ts
+++ b/packages/util/src/bn/sqrt.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/toBn.spec.ts b/packages/util/src/bn/toBn.spec.ts
index 8d8925cd9..fd18486fc 100644
--- a/packages/util/src/bn/toBn.spec.ts
+++ b/packages/util/src/bn/toBn.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/toBn.ts b/packages/util/src/bn/toBn.ts
index 5bdf35264..f117299cf 100644
--- a/packages/util/src/bn/toBn.ts
+++ b/packages/util/src/bn/toBn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { ToBn } from '../types';
diff --git a/packages/util/src/bn/toHex.spec.ts b/packages/util/src/bn/toHex.spec.ts
index 7fc6b245f..ef0e91cac 100644
--- a/packages/util/src/bn/toHex.spec.ts
+++ b/packages/util/src/bn/toHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/toHex.ts b/packages/util/src/bn/toHex.ts
index e065b3d40..af102eef0 100644
--- a/packages/util/src/bn/toHex.ts
+++ b/packages/util/src/bn/toHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/bn/toU8a.spec.ts b/packages/util/src/bn/toU8a.spec.ts
index 5f17cc3db..7f320e6d6 100644
--- a/packages/util/src/bn/toU8a.spec.ts
+++ b/packages/util/src/bn/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/bn/toU8a.ts b/packages/util/src/bn/toU8a.ts
index 0d8e30b31..fb0763320 100644
--- a/packages/util/src/bn/toU8a.ts
+++ b/packages/util/src/bn/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/bn/util.ts b/packages/util/src/bn/util.ts
index 3a38bfbe6..bbb34c140 100644
--- a/packages/util/src/bn/util.ts
+++ b/packages/util/src/bn/util.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/buffer/index.ts b/packages/util/src/buffer/index.ts
index d4c59d34f..dd195da58 100644
--- a/packages/util/src/buffer/index.ts
+++ b/packages/util/src/buffer/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/buffer/toU8a.spec.ts b/packages/util/src/buffer/toU8a.spec.ts
index 0fd6179d4..ce2d8a153 100644
--- a/packages/util/src/buffer/toU8a.spec.ts
+++ b/packages/util/src/buffer/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bufferToU8a } from '.';
diff --git a/packages/util/src/buffer/toU8a.ts b/packages/util/src/buffer/toU8a.ts
index 93850c6c3..6cbbc8e03 100644
--- a/packages/util/src/buffer/toU8a.ts
+++ b/packages/util/src/buffer/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/compact/addLength.spec.ts b/packages/util/src/compact/addLength.spec.ts
index 3cba1f5ce..88c152910 100644
--- a/packages/util/src/compact/addLength.spec.ts
+++ b/packages/util/src/compact/addLength.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { compactAddLength } from '.';
diff --git a/packages/util/src/compact/addLength.ts b/packages/util/src/compact/addLength.ts
index 3268c5ced..7a4dd15b6 100644
--- a/packages/util/src/compact/addLength.ts
+++ b/packages/util/src/compact/addLength.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aConcat } from '../u8a';
diff --git a/packages/util/src/compact/defaults.ts b/packages/util/src/compact/defaults.ts
index 0c118cd88..ee8a0c7c3 100644
--- a/packages/util/src/compact/defaults.ts
+++ b/packages/util/src/compact/defaults.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { BitLength } from './types';
diff --git a/packages/util/src/compact/fromU8a.spec.ts b/packages/util/src/compact/fromU8a.spec.ts
index 62c7d818e..6414d2677 100644
--- a/packages/util/src/compact/fromU8a.spec.ts
+++ b/packages/util/src/compact/fromU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/compact/fromU8a.ts b/packages/util/src/compact/fromU8a.ts
index 8421f6111..75edda209 100644
--- a/packages/util/src/compact/fromU8a.ts
+++ b/packages/util/src/compact/fromU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { BitLength } from './types';
diff --git a/packages/util/src/compact/index.ts b/packages/util/src/compact/index.ts
index 5019deaf2..7022ed752 100644
--- a/packages/util/src/compact/index.ts
+++ b/packages/util/src/compact/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/compact/stripLength.spec.ts b/packages/util/src/compact/stripLength.spec.ts
index 2f1cc7c7a..d9129ed3e 100644
--- a/packages/util/src/compact/stripLength.spec.ts
+++ b/packages/util/src/compact/stripLength.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { compactStripLength } from '.';
diff --git a/packages/util/src/compact/stripLength.ts b/packages/util/src/compact/stripLength.ts
index ff9872389..d8b63d6cf 100644
--- a/packages/util/src/compact/stripLength.ts
+++ b/packages/util/src/compact/stripLength.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { BitLength } from './types';
diff --git a/packages/util/src/compact/toU8a.spec.ts b/packages/util/src/compact/toU8a.spec.ts
index 046a55617..a8f885a51 100644
--- a/packages/util/src/compact/toU8a.spec.ts
+++ b/packages/util/src/compact/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/compact/toU8a.ts b/packages/util/src/compact/toU8a.ts
index a4a675b83..f754c12f4 100644
--- a/packages/util/src/compact/toU8a.ts
+++ b/packages/util/src/compact/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/compact/types.ts b/packages/util/src/compact/types.ts
index 5b13aef0e..52e9bbe29 100644
--- a/packages/util/src/compact/types.ts
+++ b/packages/util/src/compact/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export type BitLength = 8 | 16 | 32 | 64 | 128 | 256;
diff --git a/packages/util/src/detectPackage.spec.ts b/packages/util/src/detectPackage.spec.ts
index 2290aaf8d..f553c50ce 100644
--- a/packages/util/src/detectPackage.spec.ts
+++ b/packages/util/src/detectPackage.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { detectPackage } from '.';
diff --git a/packages/util/src/detectPackage.ts b/packages/util/src/detectPackage.ts
index 0d71d40d1..3242b5a51 100644
--- a/packages/util/src/detectPackage.ts
+++ b/packages/util/src/detectPackage.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isFunction } from './is/function';
diff --git a/packages/util/src/extractTime.spec.ts b/packages/util/src/extractTime.spec.ts
index 3330546fa..4e00890aa 100644
--- a/packages/util/src/extractTime.spec.ts
+++ b/packages/util/src/extractTime.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { extractTime } from '.';
diff --git a/packages/util/src/extractTime.ts b/packages/util/src/extractTime.ts
index 456b66048..9c68da429 100644
--- a/packages/util/src/extractTime.ts
+++ b/packages/util/src/extractTime.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Time } from './types';
diff --git a/packages/util/src/format/formatBalance.spec.ts b/packages/util/src/format/formatBalance.spec.ts
index 4947a09cc..9d4cf7f84 100644
--- a/packages/util/src/format/formatBalance.spec.ts
+++ b/packages/util/src/format/formatBalance.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/format/formatBalance.ts b/packages/util/src/format/formatBalance.ts
index bf831aee0..511654519 100644
--- a/packages/util/src/format/formatBalance.ts
+++ b/packages/util/src/format/formatBalance.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/format/formatDate.spec.ts b/packages/util/src/format/formatDate.spec.ts
index 91c069ce0..15dcd2740 100644
--- a/packages/util/src/format/formatDate.spec.ts
+++ b/packages/util/src/format/formatDate.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { formatDate } from '.';
diff --git a/packages/util/src/format/formatDate.ts b/packages/util/src/format/formatDate.ts
index d071aabd9..c7a7d422e 100644
--- a/packages/util/src/format/formatDate.ts
+++ b/packages/util/src/format/formatDate.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /** @internal */
diff --git a/packages/util/src/format/formatDecimal.spec.ts b/packages/util/src/format/formatDecimal.spec.ts
index 49ecaa9d0..28a31d02e 100644
--- a/packages/util/src/format/formatDecimal.spec.ts
+++ b/packages/util/src/format/formatDecimal.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { formatDecimal } from '.';
diff --git a/packages/util/src/format/formatDecimal.ts b/packages/util/src/format/formatDecimal.ts
index 6d92b8153..a5c5a113e 100644
--- a/packages/util/src/format/formatDecimal.ts
+++ b/packages/util/src/format/formatDecimal.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // eslint-disable-next-line prefer-regex-literals
diff --git a/packages/util/src/format/formatElapsed.spec.ts b/packages/util/src/format/formatElapsed.spec.ts
index e59868984..e0b1dafcf 100644
--- a/packages/util/src/format/formatElapsed.spec.ts
+++ b/packages/util/src/format/formatElapsed.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/format/formatElapsed.ts b/packages/util/src/format/formatElapsed.ts
index d73977259..b50afc988 100644
--- a/packages/util/src/format/formatElapsed.ts
+++ b/packages/util/src/format/formatElapsed.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/ui-util authors & contributors
+// Copyright 2017-2021 @polkadot/ui-util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/format/formatNumber.spec.ts b/packages/util/src/format/formatNumber.spec.ts
index 6e2f162fe..52cec6e56 100644
--- a/packages/util/src/format/formatNumber.spec.ts
+++ b/packages/util/src/format/formatNumber.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/format/formatNumber.ts b/packages/util/src/format/formatNumber.ts
index cf2f934d5..97eb952b6 100644
--- a/packages/util/src/format/formatNumber.ts
+++ b/packages/util/src/format/formatNumber.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/format/index.ts b/packages/util/src/format/index.ts
index 28f32ef34..91a346368 100644
--- a/packages/util/src/format/index.ts
+++ b/packages/util/src/format/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { formatBalance } from './formatBalance';
diff --git a/packages/util/src/format/si.ts b/packages/util/src/format/si.ts
index 1862e2a6e..4429147ca 100644
--- a/packages/util/src/format/si.ts
+++ b/packages/util/src/format/si.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { SiDef } from '../types';
diff --git a/packages/util/src/hex/addPrefix.spec.ts b/packages/util/src/hex/addPrefix.spec.ts
index 3618fb24c..9da31f7cc 100644
--- a/packages/util/src/hex/addPrefix.spec.ts
+++ b/packages/util/src/hex/addPrefix.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexAddPrefix } from '.';
diff --git a/packages/util/src/hex/addPrefix.ts b/packages/util/src/hex/addPrefix.ts
index b7c613776..6ad136900 100644
--- a/packages/util/src/hex/addPrefix.ts
+++ b/packages/util/src/hex/addPrefix.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexHasPrefix } from './hasPrefix';
diff --git a/packages/util/src/hex/fixLength.spec.ts b/packages/util/src/hex/fixLength.spec.ts
index 51a0e103e..45ebccd09 100644
--- a/packages/util/src/hex/fixLength.spec.ts
+++ b/packages/util/src/hex/fixLength.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexFixLength } from '.';
diff --git a/packages/util/src/hex/fixLength.ts b/packages/util/src/hex/fixLength.ts
index 7407f4534..2bcde3841 100644
--- a/packages/util/src/hex/fixLength.ts
+++ b/packages/util/src/hex/fixLength.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexAddPrefix } from './addPrefix';
diff --git a/packages/util/src/hex/hasPrefix.spec.ts b/packages/util/src/hex/hasPrefix.spec.ts
index 07d7c505b..6d8ffde49 100644
--- a/packages/util/src/hex/hasPrefix.spec.ts
+++ b/packages/util/src/hex/hasPrefix.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexHasPrefix } from '.';
diff --git a/packages/util/src/hex/hasPrefix.ts b/packages/util/src/hex/hasPrefix.ts
index 765482eef..a8fc07fd6 100644
--- a/packages/util/src/hex/hasPrefix.ts
+++ b/packages/util/src/hex/hasPrefix.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isHex } from '../is/hex';
diff --git a/packages/util/src/hex/index.ts b/packages/util/src/hex/index.ts
index 4ce19fcdf..0b752db66 100644
--- a/packages/util/src/hex/index.ts
+++ b/packages/util/src/hex/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/hex/stripPrefix.spec.ts b/packages/util/src/hex/stripPrefix.spec.ts
index be42c989e..8efc2fd30 100644
--- a/packages/util/src/hex/stripPrefix.spec.ts
+++ b/packages/util/src/hex/stripPrefix.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexStripPrefix } from '.';
diff --git a/packages/util/src/hex/stripPrefix.ts b/packages/util/src/hex/stripPrefix.ts
index 002ab9c46..6eb753d33 100644
--- a/packages/util/src/hex/stripPrefix.ts
+++ b/packages/util/src/hex/stripPrefix.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexHasPrefix } from './hasPrefix';
diff --git a/packages/util/src/hex/toBn.spec.ts b/packages/util/src/hex/toBn.spec.ts
index 12efec32f..d3c426f13 100644
--- a/packages/util/src/hex/toBn.spec.ts
+++ b/packages/util/src/hex/toBn.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToBn } from '.';
diff --git a/packages/util/src/hex/toBn.ts b/packages/util/src/hex/toBn.ts
index 732b9a8a7..2e957fa69 100644
--- a/packages/util/src/hex/toBn.ts
+++ b/packages/util/src/hex/toBn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { ToBnOptions } from '../types';
diff --git a/packages/util/src/hex/toNumber.spec.ts b/packages/util/src/hex/toNumber.spec.ts
index cc15d8418..92d245fab 100644
--- a/packages/util/src/hex/toNumber.spec.ts
+++ b/packages/util/src/hex/toNumber.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToNumber } from '.';
diff --git a/packages/util/src/hex/toNumber.ts b/packages/util/src/hex/toNumber.ts
index f5e47425d..36386963c 100644
--- a/packages/util/src/hex/toNumber.ts
+++ b/packages/util/src/hex/toNumber.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToBn } from './toBn';
diff --git a/packages/util/src/hex/toString.spec.ts b/packages/util/src/hex/toString.spec.ts
index cc94c43b5..4529b5830 100644
--- a/packages/util/src/hex/toString.spec.ts
+++ b/packages/util/src/hex/toString.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToString } from '.';
diff --git a/packages/util/src/hex/toString.ts b/packages/util/src/hex/toString.ts
index 599bc6c49..de0d8b353 100644
--- a/packages/util/src/hex/toString.ts
+++ b/packages/util/src/hex/toString.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToString } from '../u8a/toString';
diff --git a/packages/util/src/hex/toU8a.spec.ts b/packages/util/src/hex/toU8a.spec.ts
index 7eef62dcb..7901c7415 100644
--- a/packages/util/src/hex/toU8a.spec.ts
+++ b/packages/util/src/hex/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '.';
diff --git a/packages/util/src/hex/toU8a.ts b/packages/util/src/hex/toU8a.ts
index 08d17df75..2f03259e6 100644
--- a/packages/util/src/hex/toU8a.ts
+++ b/packages/util/src/hex/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '../assert';
diff --git a/packages/util/src/index.spec.ts b/packages/util/src/index.spec.ts
index a19535255..ab7149826 100644
--- a/packages/util/src/index.spec.ts
+++ b/packages/util/src/index.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { assert } from '.';
diff --git a/packages/util/src/index.ts b/packages/util/src/index.ts
index bbb713e68..4bebc9db1 100644
--- a/packages/util/src/index.ts
+++ b/packages/util/src/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/ascii.spec.ts b/packages/util/src/is/ascii.spec.ts
index 039c3660e..c9efde8d4 100644
--- a/packages/util/src/is/ascii.spec.ts
+++ b/packages/util/src/is/ascii.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isAscii } from '.';
diff --git a/packages/util/src/is/ascii.ts b/packages/util/src/is/ascii.ts
index 5044cd163..f97ae90d0 100644
--- a/packages/util/src/is/ascii.ts
+++ b/packages/util/src/is/ascii.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from '../u8a/toU8a';
diff --git a/packages/util/src/is/bigInt.spec.ts b/packages/util/src/is/bigInt.spec.ts
index 312d8809e..461f204f8 100644
--- a/packages/util/src/is/bigInt.spec.ts
+++ b/packages/util/src/is/bigInt.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isBigInt } from '.';
diff --git a/packages/util/src/is/bigInt.ts b/packages/util/src/is/bigInt.ts
index 7b9b691c6..c09b291f8 100644
--- a/packages/util/src/is/bigInt.ts
+++ b/packages/util/src/is/bigInt.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/bn.spec.ts b/packages/util/src/is/bn.spec.ts
index 8d929f07f..65bc2c56a 100644
--- a/packages/util/src/is/bn.spec.ts
+++ b/packages/util/src/is/bn.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/is/bn.ts b/packages/util/src/is/bn.ts
index 3486ed196..8497dffc4 100644
--- a/packages/util/src/is/bn.ts
+++ b/packages/util/src/is/bn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/is/boolean.spec.ts b/packages/util/src/is/boolean.spec.ts
index 602455940..e71eedefc 100644
--- a/packages/util/src/is/boolean.spec.ts
+++ b/packages/util/src/is/boolean.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isBoolean } from '.';
diff --git a/packages/util/src/is/boolean.ts b/packages/util/src/is/boolean.ts
index 51142d559..a20626498 100644
--- a/packages/util/src/is/boolean.ts
+++ b/packages/util/src/is/boolean.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/buffer.spec.ts b/packages/util/src/is/buffer.spec.ts
index a64062c04..2e595ccd2 100644
--- a/packages/util/src/is/buffer.spec.ts
+++ b/packages/util/src/is/buffer.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isBuffer } from '.';
diff --git a/packages/util/src/is/buffer.ts b/packages/util/src/is/buffer.ts
index 2eb0fee1b..9d3df3769 100644
--- a/packages/util/src/is/buffer.ts
+++ b/packages/util/src/is/buffer.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/childClass.spec.ts b/packages/util/src/is/childClass.spec.ts
index 9dd4ac378..c0e2a7477 100644
--- a/packages/util/src/is/childClass.spec.ts
+++ b/packages/util/src/is/childClass.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import BN from 'bn.js';
diff --git a/packages/util/src/is/childClass.ts b/packages/util/src/is/childClass.ts
index 7e62070c3..524cdf612 100644
--- a/packages/util/src/is/childClass.ts
+++ b/packages/util/src/is/childClass.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Constructor } from '../types';
diff --git a/packages/util/src/is/error.spec.ts b/packages/util/src/is/error.spec.ts
index d230820d6..923ea8c92 100644
--- a/packages/util/src/is/error.spec.ts
+++ b/packages/util/src/is/error.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isError } from '.';
diff --git a/packages/util/src/is/error.ts b/packages/util/src/is/error.ts
index 9b90a76e4..cfcde2dae 100644
--- a/packages/util/src/is/error.ts
+++ b/packages/util/src/is/error.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isInstanceOf } from './instanceOf';
diff --git a/packages/util/src/is/function.spec.ts b/packages/util/src/is/function.spec.ts
index 8e7b5ae13..ce8111633 100644
--- a/packages/util/src/is/function.spec.ts
+++ b/packages/util/src/is/function.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isFunction } from '.';
diff --git a/packages/util/src/is/function.ts b/packages/util/src/is/function.ts
index 92b489554..ba354c872 100644
--- a/packages/util/src/is/function.ts
+++ b/packages/util/src/is/function.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // eslint-disable-next-line @typescript-eslint/ban-types
diff --git a/packages/util/src/is/hex.spec.ts b/packages/util/src/is/hex.spec.ts
index f2aad0c31..d2d0c0d21 100644
--- a/packages/util/src/is/hex.spec.ts
+++ b/packages/util/src/is/hex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isHex } from '.';
diff --git a/packages/util/src/is/hex.ts b/packages/util/src/is/hex.ts
index fb8651c2a..defec0f70 100644
--- a/packages/util/src/is/hex.ts
+++ b/packages/util/src/is/hex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isString } from './string';
diff --git a/packages/util/src/is/index.ts b/packages/util/src/is/index.ts
index c9198ec94..d2687ad20 100644
--- a/packages/util/src/is/index.ts
+++ b/packages/util/src/is/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/instanceOf.spec.ts b/packages/util/src/is/instanceOf.spec.ts
index 9eba94c66..93398730f 100644
--- a/packages/util/src/is/instanceOf.spec.ts
+++ b/packages/util/src/is/instanceOf.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isInstanceOf } from '.';
diff --git a/packages/util/src/is/instanceOf.ts b/packages/util/src/is/instanceOf.ts
index b1e9122d4..187d418d1 100644
--- a/packages/util/src/is/instanceOf.ts
+++ b/packages/util/src/is/instanceOf.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/ip.spec.ts b/packages/util/src/is/ip.spec.ts
index c6ef1cd37..ea4192a38 100644
--- a/packages/util/src/is/ip.spec.ts
+++ b/packages/util/src/is/ip.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isIp } from '.';
diff --git a/packages/util/src/is/ip.ts b/packages/util/src/is/ip.ts
index cb2124fe3..2af693564 100644
--- a/packages/util/src/is/ip.ts
+++ b/packages/util/src/is/ip.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import ipRegex from 'ip-regex';
diff --git a/packages/util/src/is/jsonObject.spec.ts b/packages/util/src/is/jsonObject.spec.ts
index 6735aee3c..3bb04d58e 100644
--- a/packages/util/src/is/jsonObject.spec.ts
+++ b/packages/util/src/is/jsonObject.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isJsonObject } from '.';
diff --git a/packages/util/src/is/jsonObject.ts b/packages/util/src/is/jsonObject.ts
index f94082041..e6314a5b6 100644
--- a/packages/util/src/is/jsonObject.ts
+++ b/packages/util/src/is/jsonObject.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 interface ObjectIndexed {
diff --git a/packages/util/src/is/null.spec.ts b/packages/util/src/is/null.spec.ts
index 9fb90db6b..b79d9a9a6 100644
--- a/packages/util/src/is/null.spec.ts
+++ b/packages/util/src/is/null.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isNull } from '.';
diff --git a/packages/util/src/is/null.ts b/packages/util/src/is/null.ts
index d4fbe1b67..a53fa34c6 100644
--- a/packages/util/src/is/null.ts
+++ b/packages/util/src/is/null.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/number.spec.ts b/packages/util/src/is/number.spec.ts
index d9579d2dc..22e70036b 100644
--- a/packages/util/src/is/number.spec.ts
+++ b/packages/util/src/is/number.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isNumber } from '.';
diff --git a/packages/util/src/is/number.ts b/packages/util/src/is/number.ts
index 9138f5abf..c3f8631ab 100644
--- a/packages/util/src/is/number.ts
+++ b/packages/util/src/is/number.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/object.spec.ts b/packages/util/src/is/object.spec.ts
index e4a29b926..5bbd2a1a7 100644
--- a/packages/util/src/is/object.spec.ts
+++ b/packages/util/src/is/object.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isObject } from '.';
diff --git a/packages/util/src/is/object.ts b/packages/util/src/is/object.ts
index b6ce7a11d..eef0937b0 100644
--- a/packages/util/src/is/object.ts
+++ b/packages/util/src/is/object.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 interface ObjectIndexed {
diff --git a/packages/util/src/is/observable.spec.ts b/packages/util/src/is/observable.spec.ts
index 63e7f4a3b..87e39ca62 100644
--- a/packages/util/src/is/observable.spec.ts
+++ b/packages/util/src/is/observable.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isObservable } from '.';
diff --git a/packages/util/src/is/observable.ts b/packages/util/src/is/observable.ts
index b25414cef..039345b36 100644
--- a/packages/util/src/is/observable.ts
+++ b/packages/util/src/is/observable.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isFunction } from './function';
diff --git a/packages/util/src/is/string.spec.ts b/packages/util/src/is/string.spec.ts
index c9888aae6..9b1401cf2 100644
--- a/packages/util/src/is/string.spec.ts
+++ b/packages/util/src/is/string.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isString } from '.';
diff --git a/packages/util/src/is/string.ts b/packages/util/src/is/string.ts
index 9c44655f4..e4c880e02 100644
--- a/packages/util/src/is/string.ts
+++ b/packages/util/src/is/string.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/testChain.spec.ts b/packages/util/src/is/testChain.spec.ts
index 57ba35f93..639cd7878 100644
--- a/packages/util/src/is/testChain.spec.ts
+++ b/packages/util/src/is/testChain.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isTestChain } from '.';
diff --git a/packages/util/src/is/testChain.ts b/packages/util/src/is/testChain.ts
index 95e725222..2fe8f8a29 100644
--- a/packages/util/src/is/testChain.ts
+++ b/packages/util/src/is/testChain.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 const re = /(Development|Local Testnet)$/;
diff --git a/packages/util/src/is/toBn.ts b/packages/util/src/is/toBn.ts
index 9eded75ef..7514dd39e 100644
--- a/packages/util/src/is/toBn.ts
+++ b/packages/util/src/is/toBn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { ToBn } from '../types';
diff --git a/packages/util/src/is/u8a.spec.ts b/packages/util/src/is/u8a.spec.ts
index ee90c6031..09f2cd599 100644
--- a/packages/util/src/is/u8a.spec.ts
+++ b/packages/util/src/is/u8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isU8a } from '.';
diff --git a/packages/util/src/is/u8a.ts b/packages/util/src/is/u8a.ts
index 2326e95a6..ecdbff41d 100644
--- a/packages/util/src/is/u8a.ts
+++ b/packages/util/src/is/u8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isInstanceOf } from './instanceOf';
diff --git a/packages/util/src/is/undefined.spec.ts b/packages/util/src/is/undefined.spec.ts
index b0191bc0d..d3fa8d267 100644
--- a/packages/util/src/is/undefined.spec.ts
+++ b/packages/util/src/is/undefined.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isUndefined } from '.';
diff --git a/packages/util/src/is/undefined.ts b/packages/util/src/is/undefined.ts
index 17c244365..9337badc2 100644
--- a/packages/util/src/is/undefined.ts
+++ b/packages/util/src/is/undefined.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/is/utf8.spec.ts b/packages/util/src/is/utf8.spec.ts
index 134a5ec9c..0ed7ba162 100644
--- a/packages/util/src/is/utf8.spec.ts
+++ b/packages/util/src/is/utf8.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isUtf8 } from '.';
diff --git a/packages/util/src/is/utf8.ts b/packages/util/src/is/utf8.ts
index d422f23bb..9fbed8533 100644
--- a/packages/util/src/is/utf8.ts
+++ b/packages/util/src/is/utf8.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from https://github.com/JulienPalard/is_utf8/blob/master/is_utf8.c
diff --git a/packages/util/src/is/wasm.ts b/packages/util/src/is/wasm.ts
index 1c3ffc193..68e42fe64 100644
--- a/packages/util/src/is/wasm.ts
+++ b/packages/util/src/is/wasm.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aEq } from '../u8a/eq';
diff --git a/packages/util/src/json.d.ts b/packages/util/src/json.d.ts
index 6076c6f2e..c8119028f 100644
--- a/packages/util/src/json.d.ts
+++ b/packages/util/src/json.d.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Be able to import json in TS
diff --git a/packages/util/src/logger.spec.ts b/packages/util/src/logger.spec.ts
index 967e86b7f..46fa06448 100644
--- a/packages/util/src/logger.spec.ts
+++ b/packages/util/src/logger.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Logger } from './types';
diff --git a/packages/util/src/logger.ts b/packages/util/src/logger.ts
index 5e1c78be0..3ba3b793f 100644
--- a/packages/util/src/logger.ts
+++ b/packages/util/src/logger.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Logger, Logger$Data } from './types';
diff --git a/packages/util/src/memoize.spec.ts b/packages/util/src/memoize.spec.ts
index ae4a9bc9b..e625244ab 100644
--- a/packages/util/src/memoize.spec.ts
+++ b/packages/util/src/memoize.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { memoize } from '.';
diff --git a/packages/util/src/memoize.ts b/packages/util/src/memoize.ts
index 36a44e787..bb544791c 100644
--- a/packages/util/src/memoize.ts
+++ b/packages/util/src/memoize.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type { Memoized } from './types';
diff --git a/packages/util/src/number/index.ts b/packages/util/src/number/index.ts
index b3deaee6e..b96703c32 100644
--- a/packages/util/src/number/index.ts
+++ b/packages/util/src/number/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/number/toHex.spec.ts b/packages/util/src/number/toHex.spec.ts
index f2b5ac184..c7170e341 100644
--- a/packages/util/src/number/toHex.spec.ts
+++ b/packages/util/src/number/toHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { numberToHex } from '.';
diff --git a/packages/util/src/number/toHex.ts b/packages/util/src/number/toHex.ts
index 8689b22f7..c039f3988 100644
--- a/packages/util/src/number/toHex.ts
+++ b/packages/util/src/number/toHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexFixLength } from '../hex/fixLength';
diff --git a/packages/util/src/number/toU8a.spec.ts b/packages/util/src/number/toU8a.spec.ts
index e6e279480..267c8bcc1 100644
--- a/packages/util/src/number/toU8a.spec.ts
+++ b/packages/util/src/number/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { numberToU8a } from '.';
diff --git a/packages/util/src/number/toU8a.ts b/packages/util/src/number/toU8a.ts
index 7413056f3..da2bd28cf 100644
--- a/packages/util/src/number/toU8a.ts
+++ b/packages/util/src/number/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { hexToU8a } from '../hex/toU8a';
diff --git a/packages/util/src/promisify.spec.ts b/packages/util/src/promisify.spec.ts
index ce5b4506f..557dbb3bc 100644
--- a/packages/util/src/promisify.spec.ts
+++ b/packages/util/src/promisify.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { promisify } from '.';
diff --git a/packages/util/src/promisify.ts b/packages/util/src/promisify.ts
index 78095fbd7..9b082ec91 100644
--- a/packages/util/src/promisify.ts
+++ b/packages/util/src/promisify.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/string/camelCase.spec.ts b/packages/util/src/string/camelCase.spec.ts
index bf1a134c3..a7e46cfc0 100644
--- a/packages/util/src/string/camelCase.spec.ts
+++ b/packages/util/src/string/camelCase.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringCamelCase } from '.';
diff --git a/packages/util/src/string/camelCase.ts b/packages/util/src/string/camelCase.ts
index 521b7becf..75a001252 100644
--- a/packages/util/src/string/camelCase.ts
+++ b/packages/util/src/string/camelCase.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import camelcase from 'camelcase';
diff --git a/packages/util/src/string/index.ts b/packages/util/src/string/index.ts
index 2ea557837..b226fea09 100644
--- a/packages/util/src/string/index.ts
+++ b/packages/util/src/string/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/string/lowerFirst.spec.ts b/packages/util/src/string/lowerFirst.spec.ts
index ab919d693..be941b9f2 100644
--- a/packages/util/src/string/lowerFirst.spec.ts
+++ b/packages/util/src/string/lowerFirst.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringLowerFirst } from '.';
diff --git a/packages/util/src/string/lowerFirst.ts b/packages/util/src/string/lowerFirst.ts
index 772541a07..9f1eea205 100644
--- a/packages/util/src/string/lowerFirst.ts
+++ b/packages/util/src/string/lowerFirst.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/string/shorten.spec.ts b/packages/util/src/string/shorten.spec.ts
index df343c3cb..4d47b7c04 100644
--- a/packages/util/src/string/shorten.spec.ts
+++ b/packages/util/src/string/shorten.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringShorten } from '.';
diff --git a/packages/util/src/string/shorten.ts b/packages/util/src/string/shorten.ts
index a3bbb7864..d84148918 100644
--- a/packages/util/src/string/shorten.ts
+++ b/packages/util/src/string/shorten.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/string/toHex.spec.ts b/packages/util/src/string/toHex.spec.ts
index e093d51e0..c016bacc8 100644
--- a/packages/util/src/string/toHex.spec.ts
+++ b/packages/util/src/string/toHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToHex } from '.';
diff --git a/packages/util/src/string/toHex.ts b/packages/util/src/string/toHex.ts
index a2357ecd8..53d9afecc 100644
--- a/packages/util/src/string/toHex.ts
+++ b/packages/util/src/string/toHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '../u8a/toHex';
diff --git a/packages/util/src/string/toU8a.spec.ts b/packages/util/src/string/toU8a.spec.ts
index a5a6968a2..6dfd68a56 100644
--- a/packages/util/src/string/toU8a.spec.ts
+++ b/packages/util/src/string/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringToU8a } from '..';
diff --git a/packages/util/src/string/toU8a.ts b/packages/util/src/string/toU8a.ts
index 68deceb17..015998fb2 100644
--- a/packages/util/src/string/toU8a.ts
+++ b/packages/util/src/string/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextEncoder } from '@polkadot/x-textencoder';
diff --git a/packages/util/src/string/upperFirst.spec.ts b/packages/util/src/string/upperFirst.spec.ts
index b56945757..daabfea71 100644
--- a/packages/util/src/string/upperFirst.spec.ts
+++ b/packages/util/src/string/upperFirst.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { stringUpperFirst } from '.';
diff --git a/packages/util/src/string/upperFirst.ts b/packages/util/src/string/upperFirst.ts
index 4797580cb..d13b3f287 100644
--- a/packages/util/src/string/upperFirst.ts
+++ b/packages/util/src/string/upperFirst.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/types.ts b/packages/util/src/types.ts
index f1ff2d970..d1459212d 100644
--- a/packages/util/src/types.ts
+++ b/packages/util/src/types.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/u8a/concat.spec.ts b/packages/util/src/u8a/concat.spec.ts
index a3202b17b..25cc3afb0 100644
--- a/packages/util/src/u8a/concat.spec.ts
+++ b/packages/util/src/u8a/concat.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aConcat } from '.';
diff --git a/packages/util/src/u8a/concat.ts b/packages/util/src/u8a/concat.ts
index 2cced8bc8..3d8d23417 100644
--- a/packages/util/src/u8a/concat.ts
+++ b/packages/util/src/u8a/concat.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from './toU8a';
diff --git a/packages/util/src/u8a/eq.spec.ts b/packages/util/src/u8a/eq.spec.ts
index 3292fac1a..92c5a98f9 100644
--- a/packages/util/src/u8a/eq.spec.ts
+++ b/packages/util/src/u8a/eq.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aEq } from '.';
diff --git a/packages/util/src/u8a/eq.ts b/packages/util/src/u8a/eq.ts
index 25feb8bed..2225e9052 100644
--- a/packages/util/src/u8a/eq.ts
+++ b/packages/util/src/u8a/eq.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from './toU8a';
diff --git a/packages/util/src/u8a/fixLength.spec.ts b/packages/util/src/u8a/fixLength.spec.ts
index 3c597a138..d981daead 100644
--- a/packages/util/src/u8a/fixLength.spec.ts
+++ b/packages/util/src/u8a/fixLength.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aFixLength } from '.';
diff --git a/packages/util/src/u8a/fixLength.ts b/packages/util/src/u8a/fixLength.ts
index 7cdc0d825..6eaf2ca1f 100644
--- a/packages/util/src/u8a/fixLength.ts
+++ b/packages/util/src/u8a/fixLength.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/u8a/index.ts b/packages/util/src/u8a/index.ts
index df981aa45..e2c4db9fb 100644
--- a/packages/util/src/u8a/index.ts
+++ b/packages/util/src/u8a/index.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/u8a/sorted.spec.ts b/packages/util/src/u8a/sorted.spec.ts
index 78f918c3e..578f2b652 100644
--- a/packages/util/src/u8a/sorted.spec.ts
+++ b/packages/util/src/u8a/sorted.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aSorted } from '.';
diff --git a/packages/util/src/u8a/sorted.ts b/packages/util/src/u8a/sorted.ts
index e02ba0708..66b016b9f 100644
--- a/packages/util/src/u8a/sorted.ts
+++ b/packages/util/src/u8a/sorted.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { isUndefined } from '../is/undefined';
diff --git a/packages/util/src/u8a/toBn.spec.ts b/packages/util/src/u8a/toBn.spec.ts
index a595c5ae1..2adcb78e2 100644
--- a/packages/util/src/u8a/toBn.spec.ts
+++ b/packages/util/src/u8a/toBn.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBn } from '.';
diff --git a/packages/util/src/u8a/toBn.ts b/packages/util/src/u8a/toBn.ts
index 7b0bbe1c1..e4daa7965 100644
--- a/packages/util/src/u8a/toBn.ts
+++ b/packages/util/src/u8a/toBn.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import type BN from 'bn.js';
diff --git a/packages/util/src/u8a/toBuffer.spec.ts b/packages/util/src/u8a/toBuffer.spec.ts
index a19630aad..ac0e77059 100644
--- a/packages/util/src/u8a/toBuffer.spec.ts
+++ b/packages/util/src/u8a/toBuffer.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToBuffer } from '.';
diff --git a/packages/util/src/u8a/toBuffer.ts b/packages/util/src/u8a/toBuffer.ts
index 84b89bcb8..747a67a6b 100644
--- a/packages/util/src/u8a/toBuffer.ts
+++ b/packages/util/src/u8a/toBuffer.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 /**
diff --git a/packages/util/src/u8a/toHex.spec.ts b/packages/util/src/u8a/toHex.spec.ts
index 788337b8b..3bd5063f4 100644
--- a/packages/util/src/u8a/toHex.spec.ts
+++ b/packages/util/src/u8a/toHex.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToHex } from '.';
diff --git a/packages/util/src/u8a/toHex.ts b/packages/util/src/u8a/toHex.ts
index f5ef93516..832e1a121 100644
--- a/packages/util/src/u8a/toHex.ts
+++ b/packages/util/src/u8a/toHex.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 const ALPHABET = new Array(256).fill(0).map((_, n) => n.toString(16).padStart(2, '0'));
diff --git a/packages/util/src/u8a/toString.spec.ts b/packages/util/src/u8a/toString.spec.ts
index b98b5a563..a034eed39 100644
--- a/packages/util/src/u8a/toString.spec.ts
+++ b/packages/util/src/u8a/toString.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToString } from '..';
diff --git a/packages/util/src/u8a/toString.ts b/packages/util/src/u8a/toString.ts
index 1403dd31c..114913bd6 100644
--- a/packages/util/src/u8a/toString.ts
+++ b/packages/util/src/u8a/toString.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextDecoder } from '@polkadot/x-textdecoder';
diff --git a/packages/util/src/u8a/toU8a.spec.ts b/packages/util/src/u8a/toU8a.spec.ts
index 13d2f9b8d..8cde41189 100644
--- a/packages/util/src/u8a/toU8a.spec.ts
+++ b/packages/util/src/u8a/toU8a.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { u8aToU8a } from '.';
diff --git a/packages/util/src/u8a/toU8a.ts b/packages/util/src/u8a/toU8a.ts
index 3cd92255c..d8a19a075 100644
--- a/packages/util/src/u8a/toU8a.ts
+++ b/packages/util/src/u8a/toU8a.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/util authors & contributors
+// Copyright 2017-2021 @polkadot/util authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { bufferToU8a } from '../buffer/toU8a';
diff --git a/packages/x-fetch/src/browser.ts b/packages/x-fetch/src/browser.ts
index 95b543399..099f4506f 100644
--- a/packages/x-fetch/src/browser.ts
+++ b/packages/x-fetch/src/browser.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-fetch authors & contributors
+// Copyright 2017-2021 @polkadot/x-fetch authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export const fetch = global.fetch;
diff --git a/packages/x-fetch/src/node.ts b/packages/x-fetch/src/node.ts
index 8367edba7..1ceaaccff 100644
--- a/packages/x-fetch/src/node.ts
+++ b/packages/x-fetch/src/node.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-fetch authors & contributors
+// Copyright 2017-2021 @polkadot/x-fetch authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import nodeFetch from 'node-fetch';
diff --git a/packages/x-fetch/src/react-native.ts b/packages/x-fetch/src/react-native.ts
index edb3ecc57..6be2a763c 100644
--- a/packages/x-fetch/src/react-native.ts
+++ b/packages/x-fetch/src/react-native.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-fetch authors & contributors
+// Copyright 2017-2021 @polkadot/x-fetch authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { fetch } from './browser';
diff --git a/packages/x-randomvalues/src/browser.ts b/packages/x-randomvalues/src/browser.ts
index bd92d4e5d..5b3b0f3e8 100644
--- a/packages/x-randomvalues/src/browser.ts
+++ b/packages/x-randomvalues/src/browser.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-randomvalues authors & contributors
+// Copyright 2017-2021 @polkadot/x-randomvalues authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export function getRandomValues <T extends Uint8Array> (arr: T): T {
diff --git a/packages/x-randomvalues/src/fallback.spec.ts b/packages/x-randomvalues/src/fallback.spec.ts
index c1cc93048..c74310acd 100644
--- a/packages/x-randomvalues/src/fallback.spec.ts
+++ b/packages/x-randomvalues/src/fallback.spec.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-randomvalues authors & contributors
+// Copyright 2017-2021 @polkadot/x-randomvalues authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { insecureRandomValues } from './fallback';
diff --git a/packages/x-randomvalues/src/fallback.ts b/packages/x-randomvalues/src/fallback.ts
index b98b40076..3177a63ee 100644
--- a/packages/x-randomvalues/src/fallback.ts
+++ b/packages/x-randomvalues/src/fallback.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-randomvalues authors & contributors
+// Copyright 2017-2021 @polkadot/x-randomvalues authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from https://github.com/LinusU/react-native-get-random-values/blob/85f48393821c23b83b89a8177f56d3a81dc8b733/index.js
diff --git a/packages/x-randomvalues/src/node.ts b/packages/x-randomvalues/src/node.ts
index 1b4b083e0..69f72ed41 100644
--- a/packages/x-randomvalues/src/node.ts
+++ b/packages/x-randomvalues/src/node.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-randomvalues authors & contributors
+// Copyright 2017-2021 @polkadot/x-randomvalues authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import crypto from 'crypto';
diff --git a/packages/x-randomvalues/src/react-native.ts b/packages/x-randomvalues/src/react-native.ts
index bda30226c..5c015c394 100644
--- a/packages/x-randomvalues/src/react-native.ts
+++ b/packages/x-randomvalues/src/react-native.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-randomvalues authors & contributors
+// Copyright 2017-2021 @polkadot/x-randomvalues authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // Adapted from https://github.com/LinusU/react-native-get-random-values/blob/85f48393821c23b83b89a8177f56d3a81dc8b733/index.js
diff --git a/packages/x-textdecoder/src/browser.ts b/packages/x-textdecoder/src/browser.ts
index 3fc45a6de..b65f12e48 100644
--- a/packages/x-textdecoder/src/browser.ts
+++ b/packages/x-textdecoder/src/browser.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextDecoder as Fallback } from './fallback';
diff --git a/packages/x-textdecoder/src/fallback.ts b/packages/x-textdecoder/src/fallback.ts
index e4983c097..97ddcd475 100644
--- a/packages/x-textdecoder/src/fallback.ts
+++ b/packages/x-textdecoder/src/fallback.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // This is very limited, only handling Ascii values
diff --git a/packages/x-textdecoder/src/node.ts b/packages/x-textdecoder/src/node.ts
index 29c9a1c4e..a4d502f65 100644
--- a/packages/x-textdecoder/src/node.ts
+++ b/packages/x-textdecoder/src/node.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import util from 'util';
diff --git a/packages/x-textdecoder/src/react-native.ts b/packages/x-textdecoder/src/react-native.ts
index 3184fa9d3..d23985e8a 100644
--- a/packages/x-textdecoder/src/react-native.ts
+++ b/packages/x-textdecoder/src/react-native.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { TextDecoder } from './browser';
diff --git a/packages/x-textdecoder/src/typeCheck.ts b/packages/x-textdecoder/src/typeCheck.ts
index 1f8b8d595..f9418efed 100644
--- a/packages/x-textdecoder/src/typeCheck.ts
+++ b/packages/x-textdecoder/src/typeCheck.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textdecoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textdecoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextDecoder as BrowserTD } from './browser';
diff --git a/packages/x-textencoder/src/browser.ts b/packages/x-textencoder/src/browser.ts
index 9cf29e437..43b979ed8 100644
--- a/packages/x-textencoder/src/browser.ts
+++ b/packages/x-textencoder/src/browser.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextEncoder as Fallback } from './fallback';
diff --git a/packages/x-textencoder/src/fallback.ts b/packages/x-textencoder/src/fallback.ts
index 250f46bf5..d455ac485 100644
--- a/packages/x-textencoder/src/fallback.ts
+++ b/packages/x-textencoder/src/fallback.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 // This is very limited, only handling Ascii values
diff --git a/packages/x-textencoder/src/node.ts b/packages/x-textencoder/src/node.ts
index df1be553e..adda0a286 100644
--- a/packages/x-textencoder/src/node.ts
+++ b/packages/x-textencoder/src/node.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import util from 'util';
diff --git a/packages/x-textencoder/src/react-native.ts b/packages/x-textencoder/src/react-native.ts
index cd8cbff64..43a401d87 100644
--- a/packages/x-textencoder/src/react-native.ts
+++ b/packages/x-textencoder/src/react-native.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { TextEncoder } from './browser';
diff --git a/packages/x-textencoder/src/typeCheck.ts b/packages/x-textencoder/src/typeCheck.ts
index bb0c0921e..9ca853220 100644
--- a/packages/x-textencoder/src/typeCheck.ts
+++ b/packages/x-textencoder/src/typeCheck.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-textencoder authors & contributors
+// Copyright 2017-2021 @polkadot/x-textencoder authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import { TextEncoder as BrowserTE } from './browser';
diff --git a/packages/x-ws/src/browser.ts b/packages/x-ws/src/browser.ts
index 92870b120..3e6b7c99c 100644
--- a/packages/x-ws/src/browser.ts
+++ b/packages/x-ws/src/browser.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-ws authors & contributors
+// Copyright 2017-2021 @polkadot/x-ws authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export const WebSocket = global.WebSocket;
diff --git a/packages/x-ws/src/node.ts b/packages/x-ws/src/node.ts
index 42320c191..412839470 100644
--- a/packages/x-ws/src/node.ts
+++ b/packages/x-ws/src/node.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-ws authors & contributors
+// Copyright 2017-2021 @polkadot/x-ws authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 import ws from 'websocket';
diff --git a/packages/x-ws/src/react-native.ts b/packages/x-ws/src/react-native.ts
index 007421a8d..354266915 100644
--- a/packages/x-ws/src/react-native.ts
+++ b/packages/x-ws/src/react-native.ts
@@ -1,4 +1,4 @@
-// Copyright 2017-2020 @polkadot/x-ws authors & contributors
+// Copyright 2017-2021 @polkadot/x-ws authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
 export { WebSocket } from './browser';
diff --git a/yarn.lock b/yarn.lock
index 6d1b041c2..8b728e101 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1617,9 +1617,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/dev@npm:^0.61.19":
-  version: 0.61.19
-  resolution: "@polkadot/dev@npm:0.61.19"
+"@polkadot/dev@npm:^0.61.22":
+  version: 0.61.22
+  resolution: "@polkadot/dev@npm:0.61.22"
   dependencies:
     "@babel/cli": ^7.12.10
     "@babel/core": ^7.12.10
@@ -1651,7 +1651,7 @@ __metadata:
     browserslist: ^4.16.0
     chalk: ^4.1.0
     coveralls: ^3.1.0
-    eslint: ^7.16.0
+    eslint: ^7.17.0
     eslint-config-standard: ^16.0.2
     eslint-import-resolver-node: ^0.3.4
     eslint-plugin-header: ^3.1.0
@@ -1677,7 +1677,7 @@ __metadata:
     mkdirp: ^1.0.4
     prettier: ^2.2.1
     rimraf: ^3.0.2
-    typedoc: ^0.20.5
+    typedoc: ^0.20.10
     typedoc-plugin-markdown: ^3.2.1
     typedoc-plugin-no-inherit: ^1.2.0
     typescript: ^4.1.3
@@ -1704,7 +1704,7 @@ __metadata:
     polkadot-exec-typedoc: scripts/polkadot-exec-typedoc.cjs
     polkadot-exec-vuepress: scripts/polkadot-exec-vuepress.cjs
     polkadot-exec-webpack: scripts/polkadot-exec-webpack.cjs
-  checksum: 0d50a35d28eaadbe21526170258455eacf271efeeee59e5334fa8ae87a23f89fe6b43504a222c61f60f3af5b2b6c91b437e87ab2fa085eb1469a6fbea5887554
+  checksum: d10fa0be1f4a8d76d7ae1158ef4ef71093f7a036329d9432d693e156f55910a5d5a021aeb0d78462af69a93b62e2cfc5ed9aa524d0f84e30b796f032a24165d8
   languageName: node
   linkType: hard
 
@@ -1731,12 +1731,12 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/ts@npm:^0.3.58":
-  version: 0.3.58
-  resolution: "@polkadot/ts@npm:0.3.58"
+"@polkadot/ts@npm:^0.3.59":
+  version: 0.3.59
+  resolution: "@polkadot/ts@npm:0.3.59"
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