Skip to content
What are you looking for?. Open searchSR

Source

Claude Code Releases (GitHub)

11 items

The release feed for the same tool, useful because it carries dates and diffs that the documentation only summarizes.

github.com ↗

CLAUDE CODE2.1.294hooks written as instructions now block what t
Agentsmedium signal

Claude Code 2.1.294 fixes prompt hooks that let through the actions they were written to block

Anthropic released Claude Code 2.1.294 on October 8, 2026. It fixes prompt and agent hooks phrased as instructions, which could allow exactly the actions they were meant to stop. Version 2.1.295 followed the same day with an onFailure setting that makes a crashed or timed-out command or HTTP hook block the action. Releases 2.1.292 and 2.1.293 from earlier in the week closed several permission and sandbox gaps.

Claude Code Releases (GitHub)verified

CLAUDE CODE2.1.291fixes a session-loss regression from 2.1.288
Agentsmedium signal

Claude Code 2.1.291 fixes a four-day-old bug that could lose the last messages of a session

Version 2.1.291, out on October 6, 2026, closes a regression that shipped in 2.1.288 on October 2, 2026 and could drop the last messages of a session when you quit. It also fixes a regression from 2.1.290, released on October 5, 2026, in cloud sessions. The day before, 2.1.290 had tightened several permission checks, including rules that were skipped after a hook rewrote a tool call. If you are on any version from 2.1.288 to 2.1.290, update.

Claude Code Releases (GitHub)verified

Anthropic's illustration for the mods announcement: a hand-drawn hand placing a white block onto a wall of outlined bricks, on an orange background.
Agentsstrong signal

Claude Code mods are not sandboxed, and version 2.1.289 fixes a deny rule they could override

Anthropic introduced mods for Claude Code on October 1, 2026. They are TypeScript functions, shipped inside plugins, that can rewrite prompts, change tool calls, and redraw parts of the interface. The documentation says mods are not sandboxed and run with your permissions, which covers your files, environment variables, and API keys. On Team and Enterprise plans a built-in mod named sec-default loads first and restricts the mods that users install. Versions 2.1.288 and 2.1.289 fix several cases where permission rules did not hold.

Anthropicverified

Agentsmedium signal

Claude Code 2.1.287 adds Mods and makes a 1M context window the default on cloud platforms

Anthropic released Claude Code 2.1.287 on October 1, 2026. The release adds Claude Mods, which let plugins modify deeper behavior, and a built-in mod in which a side agent flags things you might miss. Opus 4.7 and later and Fable now use a 1M context window by default on Bedrock, Vertex, Foundry, and the Claude apps gateway. Some MCP servers may stop connecting until you add one line to their configuration, and several shell writes that used to run now wait for approval.

Claude Codeverified

Agentsmedium signal

Claude Code 2.1.286 fixes four cases of exposed credentials and tightens plugin install sources

Anthropic released Claude Code 2.1.286 on September 30, 2026. Four fixes stop credentials from appearing in MCP error messages, logs, and transcripts that were supposed to be redacted. Plugin installs now refuse npm sources that are git repositories or folders, and Remote Control sessions disconnect when an organization's policy turns the feature off. The release also corrects a spend meter that priced some cache writes at the cheaper rate, and it changes what bare mode does.

Claude Codeverified

Agentsmedium signal

Claude Code 2.1.285 lets admins restrict API providers and fixes a token login that skipped org policy

Anthropic released Claude Code 2.1.285 on September 29, 2026. A new managed setting, allowedProviders, limits which API providers a machine may use. Two fixes matter for teams: sessions that authenticate with an auth token never loaded the organization's policy, and redacted logs could show a URL password. The release also adds a switch that turns off WebFetch and a command that opens the desktop app.

Claude Codeverified

Agentsmedium signal

Claude Code 2.1.284 stops plugins from pre-approving their own tools under managed permission rules

Anthropic released Claude Code 2.1.284 on September 28, 2026. The release closes a gap that let plugins from marketplaces, claude.ai, and npm pre-approve their own tools even when managed settings allowed only managed permission rules. It also validates a Foundry setting that went straight into a hostname, and adds Claude Sonnet 5.5.

Claude Codeverified

Connectorsmedium signal

Claude Tag can now use your own connectors when you ask it something in a Slack channel

Anthropic announced on September 24, 2026, that Claude Tag can use the connectors of the person who makes a request in a Slack channel. Until now it could reach only the connectors an administrator attached to the channel. The feature is rolling out on Team plans, with Enterprise to follow.

Claude Blogverified

Agentsmedium signal

Claude Code 2.1.282 stops repository settings from switching on telemetry export

Anthropic released Claude Code 2.1.282 on September 24, 2026. Project and local settings files can no longer turn on OpenTelemetry export, set where it goes, or capture content. The release also closes several ways a repository's files could weaken settings an administrator manages.

Claude Codeverified

Agentsmedium signal

Claude Code 2.1.280 and 2.1.281 fix four cases where permission checks let an action through

Two Claude Code releases on September 22 and 23, 2026 close four gaps in how the tool decides what needs your approval. A write through a symlink could land outside the project, and a recursive delete aimed at a command substitution ran without a prompt in auto mode. A rule containing a NUL byte matched everything. One behavior change also reaches every user: the y and n keys no longer answer dialogs.

Claude Codeverified