## Why
Releases can contain different resources while shipping identical executable bytes. The daemon must recognize those release changes, while a stale updater should be able to hand off without restarting an already-current daemon.
## What changed
- Include a digest of the resolved executable path in `ExecutableIdentity` to distinguish release generations with identical binaries.
- Keep content-only comparisons for package preparation and manual update reporting.
- Check the running daemon's identity and version before restarting during updater adoption, manual updates, and production restoration. Preserve scheduled retries when the daemon is not ready.
## Testing
Add coverage for path-sensitive identity, scheduled no-op updates that preserve the daemon, and resource-only release updates that restart it despite identical executable bytes.
GitOrigin-RevId: bbea06cf502abb2251e70d4ba4b422cae867116c
## Why
Daemon updates discard installer stderr, leaving failed installs with only an exit status and no installer diagnostics.
## What changed
Capture the last 2 KiB of installer stderr and append it to errors when the installer exits unsuccessfully. Drain stderr concurrently and wait at most one second after failure so subprocesses holding the pipe open cannot delay error reporting indefinitely. Keep captured details within the manual update response limit, and configure PowerShell output as UTF-8 to preserve non-ASCII diagnostics.
## Testing
Add coverage for stderr tail truncation, bounded draining when a subprocess keeps stderr open, and manual update responses containing heavily escaped diagnostics. Extend the Windows installer test to check non-ASCII error text.
GitOrigin-RevId: d0da19b233006f97770d3f7f5f057e5e98fd2913
## Why
`codex app-server daemon update` previously required a latest-channel installation, leaving pinned and local managed packages unable to return to production updates through that command.
## What changed
- Allow explicit updates to restore managed packages to the latest stable release while preserving the automatic-update preference. Extend legacy migration to local and pinned packages when the published installer and release support it.
- Bind restoration to the selected release with a single-use updater authorization and installer guards. Scheduled updates and ordinary updater socket requests continue to respect pins.
- Restart a running daemon when its selected package changes, even if the binary and version are identical; leave stopped daemons stopped.
- Reject incompatible production packages before selecting them, resolve Windows junction targets for ownership checks, and show the restoration command after installing a pinned CLI package.
## Testing
Extend daemon and installer tests to cover local-package migration, restoration with automatic updates enabled or disabled, same-binary package restarts, stopped-daemon preservation, selection races, incompatible releases, and socket requests that must not undo pins.
GitOrigin-RevId: d64520c1190b5c7bac084fb4a1b6b24998b08dfa
## Why
The daemon shares the standalone CLI package, coupling daemon updates to the visible CLI installation. A dedicated package lets daemon updates preserve the CLI selection and shell profile.
## What changed
- Add dedicated daemon package selection and separate daemon and updater PID files, with diagnostics for the new files.
- Make `codex app-server daemon update` migrate eligible legacy stable latest-channel installations to a dedicated package. Prepare and validate the release and its package-ownership support before switching; preserve settings and whether the daemon was running. Scheduled updates keep legacy installations in place.
- Add daemon-only and deferred-selection modes to the shell and PowerShell installers, leaving the visible CLI installation unchanged.
- Coordinate migration with installer locks, refresh package selection after acquiring lifecycle locks, and reject package changes during update downloads.
## Testing
Add coverage for running and stopped migrations, incompatible installers and releases, package-selection races, daemon-only updates, and a capability probe that does not start an updater. Add a shell installer regression test verifying that daemon installation preserves the visible CLI and shell profile.
GitOrigin-RevId: 1ec0f358f8f6ebde7daddb74e880cc8d2235d647
## What changed
Add `codex app-server daemon update` to check the latest stable release once, even when automatic updates are disabled. The command requires an installer-owned latest-channel standalone installation and reports `updated`, `noUpdate`, or `unsupported` as JSON, including installed and running versions.
Route manual requests through the updater so scheduled and manual installs share one owner and accepted updates continue if the CLI exits. Restart a running managed daemon when its binary or version differs from the selected installation; this may interrupt active or queued work. Return installer failures as command errors and retry requests across updater replacement.
## Testing
Add coverage for manual updates with automatic updates disabled, queued requests, same-version binary replacement, updater handoff retries, and unsupported installations or unmanaged servers.
GitOrigin-RevId: 240b63c79bae3a64a80768131a30da70900a4d62
Eric Traut