Claude Code 2.1.303

UpdateOct 18, 20266 days agoUnverifiedAdded Oct 19, 2026

- Bug fixes and reliability improvements

Topics: LLMs, Coding agents

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UpdateOct 19unverified

Claude Code 2.1.304

- Added a transcript line when a plugin that runs first skips one of your mod's hooks, naming the event and the plugin Added decider: "person" to a mod's tool.check answer: only the permission dialog or a host's callback can approve the ask, and it is refused with the mod's reason where nobody can be asked Added e.isReadOnly to a mod's tool.check event, set...

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UpdateOct 20unverified

Claude Code 2.1.305

- Added sandbox.allowNestedUserNamespaces so sandboxed commands on Linux can create user namespaces (Chromium, rootless podman); this lets them get around the sandbox's file protections Added CLAUDE_CODE_RETRY_WATCHDOG_USAGE_LIMIT_RECHECK_MS so unattended retry mode (CLAUDE_CODE_RETRY_WATCHDOG) notices a usage limit that was lifted before its reset Fixed...

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UpdateOct 16unverified

Claude Code 2.1.302

- Added CLAUDE_CODE_AUTO_MODE_MODEL to choose the model the client-side auto mode classifier uses; it does not change the model for server-side auto mode Added an Idle compaction row to /config for turning idle compaction off or back on; the notices shown after an idle compaction now say how to turn it off Added a notice to /design-sync and /design-login...

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UpdateOct 21unverified

Claude Code 2.1.306

- Fixed claude -p inside cloud sessions reporting "Not logged in" when started without the session's environment variables Fixed an API error being replaced by "prompt is too long", and an unneeded compaction, in sessions with many MCP tools

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UpdateOct 21unverified

Claude Code 2.1.307

- Added /claude-api api-version to move Claude API code to API version 2026-10-21 Added the claude_code.safety_event OpenTelemetry event for each tool call a permission rule, auto mode, a safety check, a hook or the sandbox stopped, prompted or sent back Fixed requests failing with a model-not-found error when CLAUDE_CODE_DISABLE_1M_CONTEXT is set and the...

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UpdateOct 15unverified

Claude Code 2.1.301

- Added CLAUDE_CODE_RETRY_WATCHDOG_MAX_USAGE_LIMIT_WAIT_MS so unattended retry mode (CLAUDE_CODE_RETRY_WATCHDOG) ends a request at a usage limit that resets too far away instead of waiting Added OpenTelemetry tracing guidance to the claude-api skill, including setting up trace destinations with the ant CLI Added the % motion to vim mode: jump to the...

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UpdateOct 22unverified

Claude Code 2.1.308

- Bug fixes and reliability improvements

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UpdateOct 22unverified

Claude Code 2.1.309

- Fixed sandboxed Bash commands on macOS and Linux running the shell's startup files outside the sandbox before each command Fixed macOS sandbox denyWrite glob patterns not applying at a path's real location when the pattern's folder is reached through a symlink Fixed sandboxed commands and auto-accepted edits being able to modify the MCP config file passed...

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