Claude Code v2.1.270 → v2.1.310: what changed

37 releases shipped between v2.1.270 (September 12, 2026) and v2.1.310 (October 23, 2026).

Changelog entries in this range

• v2.1.271 — September 14, 2026: Claude Code 2.1.271 brings faster remote coding sessions with a new fast mode that lets you speed up your work in cloud and self-hosted environments. You can no
• v2.1.272 — September 14, 2026: - Bug fixes and reliability improvements
• v2.1.273 — September 15, 2026: Claude Code 2.1.273 now automatically reconnects when MCP servers disconnect and notifies you if it can't recover, plus you can fork remote-control sessions to
• v2.1.274 — September 16, 2026: Claude Code 2.1.274 now alerts you when memory is running critically low with clear steps to free up space or safely restart. We've also fixed a frustrating bug
• v2.1.275 — September 17, 2026: Claude Code 2.1.275 streamlines authentication with account confirmation before saving credentials and adds a quick send-now key to interrupt and dispatch all q
• v2.1.276 — September 18, 2026: Claude Code 2.1.276 fixes a critical issue that was causing all requests to fail when using proxy or gateway setups. We've resolved the input tag error that app
• v2.1.277 — September 18, 2026: Claude Code 2.1.277 now reads AGENTS.md as project instructions when CLAUDE.md isn't present, making it easier to configure your setup. We've also improved stab
• v2.1.278 — September 19, 2026: Claude Code 2.1.278 now runs auto mode more efficiently by defaulting to server-side processing, which means no extra charges for most users. We've also added b
• v2.1.280 — September 22, 2026: Claude Code 2.1.280 brings Claude Opus 5.5 as your new default model with a massive 1M context window and faster processing, plus improved mouse controls in ful
• v2.1.281 — September 23, 2026: Claude Code 2.1.281 brings improved desktop security controls and cross-account AWS access, making it easier to manage permissions and work across different AWS
• v2.1.282 — September 24, 2026: Claude Code 2.1.282 makes reading easier with smarter text formatting in wide terminals, while giving you better visibility into what telemetry settings your pr
• v2.1.283 — September 25, 2026: Claude Code 2.1.283 makes it easier to manage which AI models your team can use, with new controls to lock in specific versions and block others—keeping you in
• v2.1.284 — September 28, 2026: Claude Code 2.1.284 now uses the faster Claude Sonnet 5.5 model by default, giving you improved performance with a massive 1M context window. We've also made pe
• v2.1.285 — September 29, 2026: Claude Code 2.1.285 makes it easier to launch the desktop app directly from your terminal and gives you more control over plugin configuration right at install
• v2.1.286 — September 30, 2026: Claude Code 2.1.286 makes permission requests clearer when multiple stack up, and fixes critical issues where login credentials weren't properly refreshing acro
• v2.1.287 — October 1, 2026: Claude Code 2.1.287 now lets plugins modify deeper behavior with Claude Mods, and introduces an opt-in "You Should Know" agent that watches your back to catch t
• v2.1.288 — October 2, 2026: Claude Code 2.1.288 makes it easier to recover lost work with one keystroke and gives you more control over code review findings, plus fixes that prevent conver
• v2.1.289 — October 3, 2026: Claude Code 2.1.289 improves security by ensuring permission rules properly apply across complex commands and user mods on managed machines. We've also enhanced
• v2.1.290 — October 5, 2026: Claude Code 2.1.290 now gives you deeper visibility into your tools with serverToolUses tracking what the API itself calls, plus smarter permission controls tha
• v2.1.291 — October 6, 2026: Claude Code 2.1.291 restores reliability by fixing critical issues where chat messages could disappear and permission prompts were being ignored. These fixes en
• v2.1.292 — October 6, 2026: Claude Code 2.1.292 now lets you install plugins directly from marketplaces and control how hard sub-agents work on your tasks. We've also improved performance,
• v2.1.293 — October 7, 2026: Claude Code 2.1.293 now defaults to the faster, more affordable Claude Haiku 5.5 model with 1M context window, giving you better performance at lower costs. We'
• v2.1.294 — October 8, 2026: Claude Code 2.1.294 strengthens your safety controls by fixing how instruction-based hooks are interpreted, so blocking rules actually work as intended. We've a
• v2.1.295 — October 8, 2026: Claude Code 2.1.295 gives you better control with hooks that can now block actions when they fail, and improves visibility with terminal status updates showing
• v2.1.296 — October 9, 2026: Claude Code 2.1.296 now syncs code settings across Claude Desktop and the gateway for more consistent behavior, while new controls let you manage window compact
• v2.1.299 — October 14, 2026: Claude Code 2.1.299 brings smarter memory management with idle compaction, so long conversations stay efficient without reprocessing, and gives you finer contro
• v2.1.300 — October 14, 2026: Claude Code 2.1.300 brings smarter prompt handling with virtual text that won't interfere with your submissions, plus new ways to customize agent views and cont
• v2.1.301 — October 15, 2026: Claude Code 2.1.301 now handles unattended retries more intelligently, automatically stopping requests when hitting usage limits instead of waiting indefinitely
• v2.1.302 — October 16, 2026: Claude Code 2.1.302 now gives you more control over how auto mode works on your device, plus we've squashed several bugs that were causing frustrating errors du
• v2.1.303 — October 18, 2026: - Bug fixes and reliability improvements
• v2.1.304 — October 19, 2026: Claude Code 2.1.304 now gives you better visibility into plugin interactions and adds intelligent setup guidance that learns from your project to optimize auto
• v2.1.305 — October 20, 2026: Claude Code 2.1.305 now handles tool compatibility issues across different AI providers, so your commands won't fail when using Vertex, Bedrock, or other servic
• v2.1.306 — October 21, 2026: Claude Code 2.1.306 is here: cloud sessions no longer falsely report "Not logged in" for claude -p, and big MCP tool setups stop getting misleading "prompt is t
• v2.1.307 — October 21, 2026: Claude Code 2.1.307 is out: a new safety telemetry event for every stopped or prompted tool call, MCP reconnect fixes after sleep and keychain locks, and checko
• v2.1.308 — October 22, 2026: Claude Code 2.1.303 is out with bug fixes and reliability improvements. The notes don't break down the specifics, so the details are still a mystery. Curious wh
• v2.1.309 — October 22, 2026: Claude Code 2.1.309 is out: tighter sandbox and permission checks, fixes for hooks and PowerShell on Windows, and ultrareview now asks for workspace trust. Curi
• v2.1.310 — October 23, 2026: Claude Code 2.1.310 brings the Monitor tool to Bedrock, Vertex, and Foundry, fixes gateway failures and stubborn compaction, and lets Enterprise Owners set clou

All Claude Code releases · v2.1.270 release · v2.1.310 release