diff --git a/lerna.json b/lerna.json
index 4b807f7540..e498ec86be 100644
--- a/lerna.json
+++ b/lerna.json
@@ -9,5 +9,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "1.26.0-beta.4"
+  "version": "1.26.0-beta.5"
 }
diff --git a/package.json b/package.json
index b52919cd98..b73f423855 100644
--- a/package.json
+++ b/package.json
@@ -34,5 +34,5 @@
     "@vuepress/plugin-search": "^1.5.2",
     "copyfiles": "^2.3.0"
   },
-  "version": "1.26.0-beta.4"
+  "version": "1.26.0-beta.5"
 }
diff --git a/packages/api-contract/package.json b/packages/api-contract/package.json
index 46a2f99250..f49a176f44 100644
--- a/packages/api-contract/package.json
+++ b/packages/api-contract/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-contract",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Interfaces for interacting with contracts and contract ABIs",
   "main": "index.js",
   "keywords": [
@@ -27,9 +27,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-contract#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/api": "1.26.0-beta.4",
-    "@polkadot/rpc-core": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/api": "1.26.0-beta.5",
+    "@polkadot/rpc-core": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "bn.js": "^5.1.2",
     "rxjs": "^6.6.0"
diff --git a/packages/api-derive/package.json b/packages/api-derive/package.json
index 69de8ec179..cd935b443d 100644
--- a/packages/api-derive/package.json
+++ b/packages/api-derive/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-derive",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Common functions used across Polkadot, derived from RPC calls and storage queries.",
   "main": "index.js",
   "keywords": [
@@ -28,10 +28,10 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api-derive#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/api": "1.26.0-beta.4",
-    "@polkadot/rpc-core": "1.26.0-beta.4",
-    "@polkadot/rpc-provider": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/api": "1.26.0-beta.5",
+    "@polkadot/rpc-core": "1.26.0-beta.5",
+    "@polkadot/rpc-provider": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "@polkadot/util-crypto": "^3.0.1",
     "bn.js": "^5.1.2",
diff --git a/packages/api/package.json b/packages/api/package.json
index 220196906e..b6ee4060cc 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Promise and RxJS wrappers around the Polkadot JS RPC",
   "main": "index.js",
   "keywords": [
@@ -27,13 +27,13 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/api#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/api-derive": "1.26.0-beta.4",
+    "@polkadot/api-derive": "1.26.0-beta.5",
     "@polkadot/keyring": "^3.0.1",
-    "@polkadot/metadata": "1.26.0-beta.4",
-    "@polkadot/rpc-core": "1.26.0-beta.4",
-    "@polkadot/rpc-provider": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
-    "@polkadot/types-known": "1.26.0-beta.4",
+    "@polkadot/metadata": "1.26.0-beta.5",
+    "@polkadot/rpc-core": "1.26.0-beta.5",
+    "@polkadot/rpc-provider": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
+    "@polkadot/types-known": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "@polkadot/util-crypto": "^3.0.1",
     "bn.js": "^5.1.2",
diff --git a/packages/api/src/augment/tx.ts b/packages/api/src/augment/tx.ts
index 33f4e7a324..9bba1bb393 100644
--- a/packages/api/src/augment/tx.ts
+++ b/packages/api/src/augment/tx.ts
@@ -890,6 +890,16 @@ declare module '@polkadot/api/types/submittable' {
     };
     grandpa: {
       [index: string]: SubmittableExtrinsicFunction<ApiType>;
+      /**
+       * Note that the current authority set of the GRANDPA finality gadget has
+       * stalled. This will trigger a forced authority set change at the beginning
+       * of the next session, to be enacted `delay` blocks after that. The delay
+       * should be high enough to safely assume that the block signalling the
+       * forced change will not be re-orged (e.g. 1000 blocks). The GRANDPA voters
+       * will start the new authority set using the given finalized block as base.
+       * Only callable by root.
+       **/
+      noteStalled: AugmentedSubmittable<(delay: BlockNumber | AnyNumber | Uint8Array, bestFinalizedBlockNumber: BlockNumber | AnyNumber | Uint8Array) => SubmittableExtrinsic<ApiType>>;
       /**
        * Report voter equivocation/misbehavior. This method will verify the
        * equivocation proof and validate the given key ownership proof
diff --git a/packages/metadata/package.json b/packages/metadata/package.json
index e7827369cf..046b9c7c36 100644
--- a/packages/metadata/package.json
+++ b/packages/metadata/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/metadata",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Helpers to extract information from runtime metadata",
   "main": "index.js",
   "publishConfig": {
@@ -27,8 +27,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/type-metadata#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/types": "1.26.0-beta.4",
-    "@polkadot/types-known": "1.26.0-beta.4",
+    "@polkadot/types": "1.26.0-beta.5",
+    "@polkadot/types-known": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "@polkadot/util-crypto": "^3.0.1",
     "bn.js": "^5.1.2"
diff --git a/packages/rpc-core/package.json b/packages/rpc-core/package.json
index a3264e7f02..85d5ccf827 100644
--- a/packages/rpc-core/package.json
+++ b/packages/rpc-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-core",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -27,9 +27,9 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-core#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/metadata": "1.26.0-beta.4",
-    "@polkadot/rpc-provider": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/metadata": "1.26.0-beta.5",
+    "@polkadot/rpc-provider": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "memoizee": "^0.4.14",
     "rxjs": "^6.6.0"
diff --git a/packages/rpc-provider/package.json b/packages/rpc-provider/package.json
index 8f26db7a71..cb8924062b 100644
--- a/packages/rpc-provider/package.json
+++ b/packages/rpc-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/rpc-provider",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
@@ -27,8 +27,8 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/rpc-provider#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/metadata": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/metadata": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "@polkadot/util-crypto": "^3.0.1",
     "bn.js": "^5.1.2",
diff --git a/packages/typegen/package.json b/packages/typegen/package.json
index dfe0801e00..436fa03efa 100644
--- a/packages/typegen/package.json
+++ b/packages/typegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/typegen",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Type generation scripts",
   "main": "index.js",
   "bin": {
@@ -36,10 +36,10 @@
     "@babel/core": "^7.10.5",
     "@babel/register": "^7.10.5",
     "@babel/runtime": "^7.10.5",
-    "@polkadot/api": "1.26.0-beta.4",
-    "@polkadot/metadata": "1.26.0-beta.4",
-    "@polkadot/rpc-provider": "1.26.0-beta.4",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/api": "1.26.0-beta.5",
+    "@polkadot/metadata": "1.26.0-beta.5",
+    "@polkadot/rpc-provider": "1.26.0-beta.5",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "handlebars": "^4.7.6",
     "websocket": "^1.0.31",
diff --git a/packages/types-known/package.json b/packages/types-known/package.json
index 12063a9d7e..03994def2b 100644
--- a/packages/types-known/package.json
+++ b/packages/types-known/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/types-known",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types-known#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/types": "1.26.0-beta.4",
+    "@polkadot/types": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "bn.js": "^5.1.2"
   },
diff --git a/packages/types/package.json b/packages/types/package.json
index ac335a8650..76aeddde76 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/types",
-  "version": "1.26.0-beta.4",
+  "version": "1.26.0-beta.5",
   "description": "Implementation of the Parity codec",
   "main": "index.js",
   "keywords": [
@@ -27,7 +27,7 @@
   "homepage": "https://github.com/polkadot-js/api/tree/master/packages/types#readme",
   "dependencies": {
     "@babel/runtime": "^7.10.5",
-    "@polkadot/metadata": "1.26.0-beta.4",
+    "@polkadot/metadata": "1.26.0-beta.5",
     "@polkadot/util": "^3.0.1",
     "@polkadot/util-crypto": "^3.0.1",
     "@types/bn.js": "^4.11.6",
diff --git a/yarn.lock b/yarn.lock
index 2333472029..2857c18f14 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2690,25 +2690,25 @@ __metadata:
   resolution: "@polkadot/api-contract@workspace:packages/api-contract"
   dependencies:
     "@babel/runtime": ^7.10.5
-    "@polkadot/api": 1.26.0-beta.4
-    "@polkadot/rpc-core": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/api": 1.26.0-beta.5
+    "@polkadot/rpc-core": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     bn.js: ^5.1.2
     rxjs: ^6.6.0
   languageName: unknown
   linkType: soft
 
-"@polkadot/api-derive@1.26.0-beta.4, @polkadot/api-derive@workspace:packages/api-derive":
+"@polkadot/api-derive@1.26.0-beta.5, @polkadot/api-derive@workspace:packages/api-derive":
   version: 0.0.0-use.local
   resolution: "@polkadot/api-derive@workspace:packages/api-derive"
   dependencies:
     "@babel/runtime": ^7.10.5
-    "@polkadot/api": 1.26.0-beta.4
+    "@polkadot/api": 1.26.0-beta.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/rpc-core": 1.26.0-beta.4
-    "@polkadot/rpc-provider": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/rpc-core": 1.26.0-beta.5
+    "@polkadot/rpc-provider": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@polkadot/util-crypto": ^3.0.1
     bn.js: ^5.1.2
@@ -2717,18 +2717,18 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/api@1.26.0-beta.4, @polkadot/api@workspace:packages/api":
+"@polkadot/api@1.26.0-beta.5, @polkadot/api@workspace:packages/api":
   version: 0.0.0-use.local
   resolution: "@polkadot/api@workspace:packages/api"
   dependencies:
     "@babel/runtime": ^7.10.5
-    "@polkadot/api-derive": 1.26.0-beta.4
+    "@polkadot/api-derive": 1.26.0-beta.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/metadata": 1.26.0-beta.4
-    "@polkadot/rpc-core": 1.26.0-beta.4
-    "@polkadot/rpc-provider": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
-    "@polkadot/types-known": 1.26.0-beta.4
+    "@polkadot/metadata": 1.26.0-beta.5
+    "@polkadot/rpc-core": 1.26.0-beta.5
+    "@polkadot/rpc-provider": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
+    "@polkadot/types-known": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@polkadot/util-crypto": ^3.0.1
     bn.js: ^5.1.2
@@ -2837,43 +2837,43 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/metadata@1.26.0-beta.4, @polkadot/metadata@workspace:packages/metadata":
+"@polkadot/metadata@1.26.0-beta.5, @polkadot/metadata@workspace:packages/metadata":
   version: 0.0.0-use.local
   resolution: "@polkadot/metadata@workspace:packages/metadata"
   dependencies:
     "@babel/runtime": ^7.10.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/types": 1.26.0-beta.4
-    "@polkadot/types-known": 1.26.0-beta.4
+    "@polkadot/types": 1.26.0-beta.5
+    "@polkadot/types-known": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@polkadot/util-crypto": ^3.0.1
     bn.js: ^5.1.2
   languageName: unknown
   linkType: soft
 
-"@polkadot/rpc-core@1.26.0-beta.4, @polkadot/rpc-core@workspace:packages/rpc-core":
+"@polkadot/rpc-core@1.26.0-beta.5, @polkadot/rpc-core@workspace:packages/rpc-core":
   version: 0.0.0-use.local
   resolution: "@polkadot/rpc-core@workspace:packages/rpc-core"
   dependencies:
     "@babel/runtime": ^7.10.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/metadata": 1.26.0-beta.4
-    "@polkadot/rpc-provider": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/metadata": 1.26.0-beta.5
+    "@polkadot/rpc-provider": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     memoizee: ^0.4.14
     rxjs: ^6.6.0
   languageName: unknown
   linkType: soft
 
-"@polkadot/rpc-provider@1.26.0-beta.4, @polkadot/rpc-provider@workspace:packages/rpc-provider":
+"@polkadot/rpc-provider@1.26.0-beta.5, @polkadot/rpc-provider@workspace:packages/rpc-provider":
   version: 0.0.0-use.local
   resolution: "@polkadot/rpc-provider@workspace:packages/rpc-provider"
   dependencies:
     "@babel/runtime": ^7.10.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/metadata": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/metadata": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@polkadot/util-crypto": ^3.0.1
     bn.js: ^5.1.2
@@ -2901,10 +2901,10 @@ __metadata:
     "@babel/core": ^7.10.5
     "@babel/register": ^7.10.5
     "@babel/runtime": ^7.10.5
-    "@polkadot/api": 1.26.0-beta.4
-    "@polkadot/metadata": 1.26.0-beta.4
-    "@polkadot/rpc-provider": 1.26.0-beta.4
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/api": 1.26.0-beta.5
+    "@polkadot/metadata": 1.26.0-beta.5
+    "@polkadot/rpc-provider": 1.26.0-beta.5
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@types/websocket": ^1.0.1
     "@types/yargs": ^15.0.5
@@ -2920,25 +2920,25 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/types-known@1.26.0-beta.4, @polkadot/types-known@workspace:packages/types-known":
+"@polkadot/types-known@1.26.0-beta.5, @polkadot/types-known@workspace:packages/types-known":
   version: 0.0.0-use.local
   resolution: "@polkadot/types-known@workspace:packages/types-known"
   dependencies:
     "@babel/runtime": ^7.10.5
-    "@polkadot/types": 1.26.0-beta.4
+    "@polkadot/types": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@types/bn.js": ^4.11.6
     bn.js: ^5.1.2
   languageName: unknown
   linkType: soft
 
-"@polkadot/types@1.26.0-beta.4, @polkadot/types@workspace:packages/types":
+"@polkadot/types@1.26.0-beta.5, @polkadot/types@workspace:packages/types":
   version: 0.0.0-use.local
   resolution: "@polkadot/types@workspace:packages/types"
   dependencies:
     "@babel/runtime": ^7.10.5
     "@polkadot/keyring": ^3.0.1
-    "@polkadot/metadata": 1.26.0-beta.4
+    "@polkadot/metadata": 1.26.0-beta.5
     "@polkadot/util": ^3.0.1
     "@polkadot/util-crypto": ^3.0.1
     "@types/bn.js": ^4.11.6