- Subagents/models: persist `sessions_spawn.model` and configured subagent models as child-session model overrides before the first turn, so spawned subagents actually run on the requested provider/model instead of reverting to the target agent default. Fixes #73180. Thanks @danielzinhu99.

- Channels/Telegram: keep webhook-mode local listeners alive and retry Telegram `setWebhook` registration after recoverable startup network failures, so transient Bot API timeouts no longer leave reverse proxies pointing at a closed listener. Fixes #71834. Thanks @jinon86.

- Agents/ACPX: bundle the Codex ACP adapter and launch it from the isolated `CODEX_HOME` wrapper before falling back to npm, so Codex ACP startup no longer depends on live `npx` resolution or the stale `@zed-industries/codex-acp@^0.11.1` range. Fixes #72037; refs #73202. Thanks @jasonftl, @sazora, and @joerod26.

- CLI/update: keep restart health polling when the restarted Gateway is reachable but has not reported its version yet, so macOS service restarts do not fail early with `actual unavailable`. Thanks @ProspectOre.

- Backup: skip installed plugin `extensions/*/node_modules` dependency trees while keeping plugin manifests and source files in archives, so local backups avoid rebuildable npm payload bloat. Fixes #64144. Thanks @BrilliantWang.

- Cron/models: fail isolated cron runs closed when an explicit `payload.model` is not allowed or cannot be resolved, so scheduled jobs do not silently fall back to an unrelated agent default or paid route before configured provider proxies such as LiteLLM can run. Fixes #73146. Thanks @oneandrewwang.

- Memory/QMD: back off repeated chat-turn QMD open failures while still letting memory status and CLI probes recheck immediately, so a broken sidecar dependency cannot trigger active-memory or cron retry storms. Fixes #73188 and #73176. Thanks @leonlushgit and @w3i-William.