Claude Code v2.1.248 → v2.1.309: what changed
51 releases shipped between v2.1.248 (August 27, 2026) and v2.1.309 (October 22, 2026).
Changelog entries in this range
- v2.1.250 — August 27, 2026: - Bug fixes and reliability improvements
- v2.1.251 — August 28, 2026: Claude Code 2.1.251 now lets you control when models switch with new hook events and shows live tool execution from subagents to Remote Control clients. We've a
- v2.1.252 — August 31, 2026: Claude Code 2.1.252 fixes critical issues that were causing commands to fail on some Macs and Remote Control sessions to stall unexpectedly. We've also improved
- v2.1.257 — September 1, 2026: Claude Code 2.1.257 now includes Claude Fable 5.1 as the default model with expanded context and improved pricing, plus new customizable time format settings fo
- v2.1.258 — September 1, 2026: Claude Code 2.1.258 fixes critical issues that were preventing the app from launching on older Mac systems and resolving remote session failures. These updates
- v2.1.259 — September 2, 2026: - Added managedMcpServers managed setting: organi
- v2.1.260 — September 3, 2026: Claude Code 2.1.260 now shows your uncommitted changes in a side-by-side diff panel, making it easier to review edits as they happen. We've also improved debugg
- v2.1.261 — September 4, 2026: - Added an "Organi
- v2.1.263 — September 6, 2026: - Bug fixes and reliability improvements
- v2.1.265 — September 8, 2026: Claude Code 2.1.265 now lets you point to entire plugin folders that automatically load child plugins and pick up changes in real-time, plus adds smart storage
- v2.1.266 — September 8, 2026: Claude Code 2.1.266 resolves a critical authentication issue that broke proxy and gateway setups in the previous version. We've restored the proper behavior so
- v2.1.267 — September 9, 2026: Claude Code 2.1.267 gives you new control over resource usage with effort level limits across all providers, plus better ways to fine-tune your prompts and impr
- v2.1.268 — September 10, 2026: Claude Code 2.1.268 brings unified pricing across your Claude apps gateway with automatic rate matching, plus new security safeguards that warn you about open n
- v2.1.269 — September 11, 2026: Claude Code 2.1.269 now lets you evaluate plugins with reproducible, scored results and gives you more control over how output appears across different environm
- v2.1.270 — September 12, 2026: Claude Code 2.1.270 fixes an annoying bug where git commands would unexpectedly ask for permission during long sessions. We've also made several under-the-hood
- 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
All Claude Code releases · v2.1.248 release · v2.1.309 release