Claude Code changelog changedchangelog
Nearest release: v2.1.291, published under an hour before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 6 Oct 2026 04:05 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 6 Oct 2026 04:07 UTC.
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77Run `claude --version` to check your installed version.
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9<Update label="2.1.291" description="October 6, 2026">
10 * Fixed a regression in 2.1.290 where cloud sessions could drop answers to permission prompts
11 * Fixed a regression in 2.1.288 where the last messages of a session could be lost when quitting
12</Update>
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914<Update label="2.1.290" description="October 5, 2026">
1015 * Added `serverToolUses` to the result of a mod's `turn.step` hook: the tool calls the API ran itself (the advisor), each with its id, name, input, start and end
1116 * Added `agentId` to the `tool.check` event of plugin hooks, so a hook can tell a subagent's permission check from the main session's
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17381743 * Added `CLAUDE_CODE_WORKFLOW_MAX_CONCURRENT_AGENTS` (1–256) to raise the Workflow tool's per-run concurrent agent limit for inference-bound fan-outs
17391744 * Fixed the prompt cache being partially invalidated on the turn after a response was cut off at the output-token limit and automatically resumed
17401745 * Fixed a case where resuming a session after interrupting Claude mid-thought could change how earlier context was re-sent, hurting prompt-cache reuse
1741 * Fixed F1/F2/F4 not working in kitty-protocol terminals and Delete in st, Alt+arrows acting as Escape in rxvt-unicode, and Shift+punctuation typing the unshifted key in WezTerm (regression in 2.1.247)
1742 * Fixed remote and headless sessions reporting "waiting for your input" while background agents were still running (set `CLAUDE_CODE_BG_TASKS_REPORT_RUNNING=0` to restore the old behavior)
1743 * Fixed the termina
1746 * Fixed F1/F2/F4 not working in kitty-protocol terminals and Delete in st, Alt+arrows acting as Escape in rxvt-unicode, and Shift+punctuation typing the
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