RELEASE ARCHIVE / CLAUDE CODE
Claude Code Changelog Archive
Release history is evidence, not a 150-part course. Use this ledger for version-specific changes; use Learn for the balanced CLI curriculum.
November 2026
2- v2.1.318
Claude Code v2.1.318: Sign-In Expiry and Network Home Fixes
Claude Code v2.1.318 shows when a claude.ai sign-in expires, protects ~/.claude.json on network homes, and changes IDE extension installs and deniedMcpServers.
- v2.1.317
Claude Code v2.1.317: Email Check, Gateway Costs, CI Fixes
Claude Code v2.1.317 asks before web or shell tools send your account email, adds a gateway cost report, and makes claude -p exit 1 when writes are lost.
October 2026
26- v2.1.316
Claude Code v2.1.316: Opus 4.8 Fast Mode Deprecated, New Env Vars
Claude Code v2.1.316 deprecates Opus 4.8 fast mode (it ends November 30, 2026; move to Opus 5.5) and adds subagent effort, ultrathink and gateway controls.
- v2.1.314
Claude Code v2.1.314: Write Blocking, Wider Idle Compaction
Claude Code v2.1.314 can block file writes outside your working directories, brings idle compaction to VS Code, and ships 81 fixes plus 13 behavior changes.
- v2.1.312
Claude Code v2.1.312: safety_event Stops, New Hook Limits
Claude Code v2.1.312 stops sending claude_code.safety_event, caps concurrent prompt and agent hooks, and changes two defaults for unrecognized model names.
- v2.1.311
Claude Code v2.1.311: ultrathink at xhigh, 1M Context Fix
Claude Code v2.1.311 makes ultrathink run at xhigh effort in the terminal, fixes the 'Usage credits required for 1M context' stop, and changes JSON escaping.
- v2.1.310
Claude Code v2.1.310: Monitor on Bedrock, Gateway Retries
Claude Code v2.1.310 brings the Monitor tool to Bedrock, Vertex and Foundry, retries requests some gateways reject, and shows symlink targets in read prompts.
- v2.1.308
Claude Code v2.1.308: Bug Fixes and Reliability Improvements
The official changelog for Claude Code v2.1.308 lists only bug fixes and reliability improvements; Anthropic published no itemized notes for this version.
- v2.1.309
Claude Code v2.1.309: Sandbox and Permission Hardening
Claude Code v2.1.309 fixes sandbox, permission and worktree isolation gaps, gives sed -i the standard Bash prompt, and adds a trust check to ultrareview.
- v2.1.306
Claude Code v2.1.306: Cloud Session Login and Large MCP Session Fixes
Claude Code v2.1.306 is a two-entry fix release: `claude -p` no longer reports "Not logged in" inside a cloud session started without its environment variables, and sessions with many MCP tools no longer mask an API error as "prompt is too long" or compact when they do not need to.
- v2.1.307
Claude Code v2.1.307: A Safety Telemetry Event, API Version Migration, and a Long List of MCP and Session Fixes
Claude Code v2.1.307 adds the claude_code.safety_event OpenTelemetry event for every tool call a rule, auto mode, a hook or the sandbox intervened on, adds /claude-api api-version, and fixes duplicate HTTP MCP tool calls, locked-keychain MCP authentication, autocompact thrashing on large tool results, and much else.
- v2.1.305
Claude Code v2.1.305: Tool Search Regression Fix, Nested User Namespaces for the Linux Sandbox, and Usage-Limit Rechecks
Claude Code v2.1.305 fixes a 2.1.304 regression that failed every request when tool search was rejected, adds sandbox.allowNestedUserNamespaces and a usage-limit recheck for unattended retries, and improves /usage.
- v2.1.304
Claude Code v2.1.304: Wider /auto-mode-setup Availability, a Managed Agents Security Check, and Code Review Levels
Claude Code v2.1.304 extends /auto-mode-setup to Bedrock, Vertex, Foundry and more, adds a Managed Agents security comparison and Code Review levels, and fixes worktree, rm -r and compaction issues.
- v2.1.303
Claude Code v2.1.303: Bug Fixes and Reliability Improvements
The official changelog for Claude Code v2.1.303 lists only bug fixes and reliability improvements; Anthropic published no itemized notes for this version.
- v2.1.302
Claude Code v2.1.302: Auto Mode Classifier Model Setting, Idle Compaction Toggle, and Fork Subagents On by Default
Claude Code v2.1.302 adds CLAUDE_CODE_AUTO_MODE_MODEL and an Idle compaction toggle in /config, enables fork subagents by default beyond the terminal, and fixes MCP, plugin, cloud session and Claude Tag issues.
- v2.1.301
Claude Code v2.1.301: Usage-Limit Wait Cap for Unattended Retries, Vim % Motion, and Classifier Telemetry
Claude Code v2.1.301 lets unattended retry mode stop at distant usage-limit resets, adds the vim % motion and auto mode classifier fields in OpenTelemetry, and fixes worktree, sign-in, search and VS Code issues.
- v2.1.299
Claude Code v2.1.299: Idle Compaction, CLAUDE_CODE_DISABLE_FILE_MENTIONS, and Stricter MCP Permission Matching
Claude Code v2.1.299 adds idle compaction for long idle conversations, CLAUDE_CODE_DISABLE_FILE_MENTIONS and new /usage warnings, makes MCP allow rules match whole server names, and fixes many sandbox and MCP issues.
- v2.1.300
Claude Code v2.1.300: /advisor on Claude Platform on AWS, Stricter Hook Input Validation, and New Mod APIs
Claude Code v2.1.300 adds /advisor on Claude Platform on AWS, validates hook-rewritten tool input, extends mods and OpenTelemetry, and removes the no-op sandbox flags from claude remote-control.
- v2.1.296
Claude Code v2.1.296: Gateway code Policies, Per-Subagent Auto-Compact Windows, and a Workflow Subagent Model Setting
Claude Code v2.1.296 adds a code key to Claude apps gateway policies, autoCompactWindow for subagents, CLAUDE_CODE_WORKFLOW_SUBAGENT_MODEL and a Read tool allow_large option, plus managed hook and Windows fixes.
- v2.1.294
Claude Code v2.1.294: Instruction-Style prompt and agent Hooks Now Block What They Should
Claude Code v2.1.294 fixes prompt and agent hooks written as instructions allowing what they should block, and improves how instruction-style prompt hooks on Stop and SubagentStop are judged.
- v2.1.295
Claude Code v2.1.295: Hooks That Block on Failure, Program Status Protocol Support, and Gateway Model Lists
Claude Code v2.1.295 adds an onFailure block option for command and HTTP hooks, Program Status Protocol (OSC 7501) support, quoted text in /copy, and per-upstream model lists for the Claude apps gateway.
- v2.1.293
Claude Code v2.1.293: Claude Haiku 5.5 as the Default Haiku Model, agentType for Subagent Status Lines, and Backgrounding Fixes
Claude Code v2.1.293 adds Claude Haiku 5.5 as the default Haiku model on the Anthropic API, agentType in the subagentStatusLine payload and isDeferred for mods, and reverts two earlier changes.
- v2.1.291
Claude Code v2.1.291: Fixes for Dropped Permission Answers in Cloud Sessions and Lost Messages on Quit
Claude Code v2.1.291 fixes two regressions: cloud sessions could drop answers to permission prompts (from 2.1.290), and a session's last messages could be lost when quitting (from 2.1.288).
- v2.1.292
Claude Code v2.1.292: claude plugin install --marketplace, an effort Parameter for Subagents, and MCP Protocol 2026-07-28 by Default
Claude Code v2.1.292 adds --marketplace to claude plugin install, an effort parameter for the Agent tool and a 529 retry delay variable, defaults local MCP servers to protocol 2026-07-28, and fixes security issues.
- v2.1.290
Claude Code v2.1.290: claude attach and logs by Name, Managed Agents Onboarding, and a Refilling WebSearch Budget
Claude Code v2.1.290 lets claude attach and claude logs take part of a session name, adds Managed Agents onboarding to /claude-api, makes the WebSearch budget refill over time, and fixes many permission issues.
- v2.1.289
Claude Code v2.1.289: Permission Rule Fixes, agent.spawn for Teammates, and Plugin Rendering Stability
Claude Code v2.1.289 fixes cases where deny and ask rules did not apply, adds agent.spawn for teammates and idle and waiting states in $.agent.list(), and fixes many plugin and mod rendering failures.
- v2.1.288
Claude Code v2.1.288: Ctrl+C Draft Recovery, /code-review --max-findings, and Agents View Search
Claude Code v2.1.288 recovers prompts cleared with Ctrl+C, adds --max-findings to /code-review and name search to the agents view, and fixes resume, auto mode, plugin, MCP and permission issues.
- v2.1.287
Claude Code v2.1.287: Claude Mods, the You should know Mod, and Default 1M Context on Bedrock, Vertex and Foundry
Claude Code v2.1.287 adds Claude Mods and the built-in You should know mod, supports URL prompts from MCP servers, and defaults Opus 4.7+ and Fable to 1M context on Bedrock, Vertex and Foundry.
September 2026
27- v2.1.286
Claude Code v2.1.286: Permission Prompt Counts, a Leaner --bare Mode, and VS Code Bookmarks
Claude Code v2.1.286 counts stacked permission prompts, makes --bare connect only the MCP servers you name, caps retries per model call, and adds bookmarks and question history to VS Code.
- v2.1.285
Claude Code v2.1.285: claude --desktop, an allowedProviders Managed Setting, and Time Limits for Background Shell Commands
Claude Code v2.1.285 adds claude --desktop, claude plugin configure and an allowedProviders managed setting, stops background shell commands after a time limit, and uses 1M context behind custom base URLs.
- v2.1.284
Claude Code v2.1.284: Claude Sonnet 5.5, Auto Mode by Default on Every Plan, and Ultracode as Its Own Toggle
Claude Code v2.1.284 adds Claude Sonnet 5.5 as the default Sonnet model on the Anthropic API, starts interactive sessions in auto mode by default on every plan, and makes Ultracode a separate /effort toggle.
- v2.1.283
Claude Code v2.1.283: Auto Mode Default on Third-Party Providers, New Model Controls, and /doctor prompt-audit
Claude Code v2.1.283 starts sessions in auto mode by default on third-party providers or with telemetry off, adds availableModelsMatch and deniedModels managed settings, and adds /doctor prompt-audit.
- v2.1.282
Claude Code v2.1.282: maxProseWidth Setting, Telemetry Settings Changes, and Reserved Skill Namespaces
Claude Code v2.1.282 adds a maxProseWidth setting, stops project settings from turning on telemetry export, reserves the anthropic-skills and claude-ai names for synced skills, and fixes resume and vim issues.
- v2.1.281
Claude Code v2.1.281: Attribution Opt-Out, Auto Mode and rm Safety Changes, and Claude Apps Gateway Additions
Claude Code v2.1.281 adds an attribution: false setting, MCP URL-mode elicitation and new Claude apps gateway options, and changes how auto mode and dangerous rm commands are reviewed, alongside many fixes.
- v2.1.280
Claude Code v2.1.280: Claude Opus 5.5 Arrives and Opus Becomes the Default on Pro and Team Standard
Claude Code v2.1.280 adds Claude Opus 5.5 as the default Opus model, makes Opus the default on Pro and Team Standard plans, stops stray y/n keys from answering dialogs, and adds new VS Code dialogs.
- v2.1.278
Claude Code v2.1.278: Auto Mode Defaults to the Server-Side Classifier
Claude Code v2.1.278 makes the server-side classifier the auto mode default for Claude API and Enterprise users and on Bedrock, Vertex, Foundry and gateways, and adds an Auto mode server row to /status.
- v2.1.276
Claude Code v2.1.276: Fix for 400 Errors Through Proxies and Gateways
Claude Code v2.1.276 is a single-fix release: requests no longer all fail with a 400 error naming the input tag advisor_20260301 when ANTHROPIC_BASE_URL points at a proxy or gateway, a 2.1.275 regression.
- v2.1.277
Claude Code v2.1.277: AGENTS.md Support, Gateway Egress Proxy Options, and TaskOutput Removal
Claude Code v2.1.277 reads AGENTS.md when a project has no CLAUDE.md, adds forward-proxy and upstream header options to the Claude apps gateway, removes the TaskOutput tool, and fixes headless hangs.
- v2.1.274
Claude Code v2.1.274: Critical Memory Warning, MCP Startup Wait Control, and Gateway Operations Updates
Claude Code v2.1.274 adds a critical-memory warning, CLAUDE_CODE_MCP_STARTUP_WAIT_MS, new OpenTelemetry data, Claude apps gateway drain and Postgres options, and a fix for endless tool_use_id retry loops.
- v2.1.275
Claude Code v2.1.275: Send-Now Key, claude.ai Skills and Plugins Sync, and Safer npm Plugin Installs
Claude Code v2.1.275 adds a send-now key for queued messages, syncs claude.ai skills and plugins to terminal sessions, confirms the gateway sign-in account, and stops npm plugin install scripts from running.
- v2.1.272
Claude Code v2.1.272: Bug Fixes and Reliability Improvements
Claude Code v2.1.272 is a maintenance release. Its changelog entry lists only bug fixes and reliability improvements, without itemized notes.
- v2.1.273
Claude Code v2.1.273: Gateway Hint Headers, Forking Remote Control Sessions, and Managed MCP Fixes
Claude Code v2.1.273 adds opt-in request headers for LLM gateways, MCP disconnect notifications and forking Remote Control sessions from the Claude app, and fixes managed MCP settings being ignored.
- v2.1.271
Claude Code v2.1.271: Fast Mode in Remote Sessions, Per-Command Sandbox Domains, and omitClaudeMd
Claude Code v2.1.271 brings fast mode to Remote sessions, per-command allowed domains in sandboxed auto mode, omitClaudeMd for subagents, an --accept-command option for plugin installs, and Monitor deadlines.
- v2.1.270
Claude Code v2.1.270: Fix for Read-Only Git Commands Asking for Permission
Claude Code v2.1.270 is a single-fix release: read-only git commands in Bash no longer unexpectedly ask for permission after a session has been running for a while, a regression in 2.1.269.
- v2.1.269
Claude Code v2.1.269: Plugin Eval Suites, /output-style, and Bash Edit Diffs
Claude Code v2.1.269 adds claude plugin eval for scored eval suites, an /output-style command, Bash edit diffs, new environment variables, and a VS Code agent map with hooks and permission-rule dialogs.
- v2.1.268
Claude Code v2.1.268: Gateway Pricing Sync, Plugin JSON Output, and a WebFetch Deadline
Claude Code v2.1.268 passes Claude apps gateway pricing to clients, adds JSON output to plugin commands, sets a 300-second WebFetch deadline, and fixes HTTP 400s on third-party Anthropic-compatible endpoints.
- v2.1.267
Claude Code v2.1.267: maxEffortLevel Setting, --system-prompt-snapshot off, and Prompt-Cache Fixes
Claude Code v2.1.267 adds a maxEffortLevel setting and --system-prompt-snapshot off, fixes a series of prompt-cache breaks around tools, model switches, and resume, and tightens managed-settings checks.
- v2.1.265
Claude Code v2.1.265: --plugin-dir Plugin Folders, a 1 GB Tool-Result Cap, and Gateway Telemetry Changes
Claude Code v2.1.265 lets --plugin-dir load a folder of plugins, caps tool results saved to disk at 1 GB, changes Claude apps gateway login and telemetry, and fixes prompt-cache and resume issues.
- v2.1.266
Claude Code v2.1.266: Fix for a CLAUDE_CODE_USE_GATEWAY Regression from 2.1.265
Claude Code v2.1.266 fixes a 2.1.265 regression in which CLAUDE_CODE_USE_GATEWAY forced Cloud-gateway sign-in on its own, breaking LLM-gateway and proxy setups. No configuration change is needed.
- v2.1.263
Claude Code v2.1.263: Bug Fixes and Reliability Improvements
Claude Code v2.1.263 is a maintenance release. Its changelog entry lists only bug fixes and reliability improvements, with no itemized changes.
- v2.1.261
Claude Code v2.1.261: /skill-doctor, Larger Inline Output Limits, and Bash-Style Word Editing
Claude Code v2.1.261 adds /skill-doctor, bashOutputMaxChars and taskOutputMaxChars settings, an Organization policy line in /status, and Bash-style word-editing keys in the prompt.
- v2.1.260
Claude Code v2.1.260: Fullscreen Diff Panel, Prompt-Cache Miss Causes, and a Bash Deny-Rule Revert
Claude Code v2.1.260 adds a fullscreen diff panel (/diff), likely causes for prompt-cache misses in /cost, and headless /advisor and /reload-plugins, and reverts the 2.1.259 Bash Read() deny-rule change.
- v2.1.259
Claude Code v2.1.259: Managed MCP Servers, --permission-prompts none, and GitLab MR Recognition
Claude Code v2.1.259 adds the managedMcpServers managed setting, --permission-prompts none for headless hosts, GitLab merge request recognition, and --json for claude plugin validate.
- v2.1.257
Claude Code v2.1.257: Claude Fable 5.1, Time Format Settings, and New Auto Mode Safeguards
Claude Code v2.1.257 makes Claude Fable 5.1 the default Fable model, adds timeFormat and timeZone settings, and adds a Containment Escape rule to auto mode, among 104 changelog entries.
- v2.1.258
Claude Code v2.1.258: Fixes for Launching on macOS 12 and Remote Session Failures
Claude Code v2.1.258 fixes Claude Code failing to launch on macOS 12 (Monterey), a regression from 2.1.255, and remote and scheduled sessions failing after a re-sent permission approval.
August 2026
28- v2.1.252
Claude Code v2.1.252: Fixes for Bash on Some Macs, Always Allow, and Remote Control Stalls
Claude Code v2.1.252 is a four-item bug-fix release covering Bash on some Macs, always allow in projects without local settings, Remote Control stalls, and oversized background task notifications.
- v2.1.250
Claude Code v2.1.250: Bug Fixes and Reliability Improvements
Claude Code v2.1.250 is a maintenance release. Its changelog entry lists only bug fixes and reliability improvements, with no itemized changes.
- v2.1.251
Claude Code v2.1.251: Model Switch Hooks, Prompt-Cache Stats in /cost, and Permission Hardening
Claude Code v2.1.251 adds PreModelSwitch and PostModelSwitch hooks, prompt-cache stats in /cost and a spend limit bar in /usage, and closes several symlink, sandbox, and settings permission gaps.
- v2.1.248
Claude Code v2.1.248: --restricted Mode, Per-Agent Prompt Cache TTL, and Cross-Session Messaging on Bedrock, Vertex, and Foundry
Claude Code v2.1.248 adds a --restricted mode, a per-agent experimental.cacheTtl, server-managed settings diagnostics, and cross-session messaging on Bedrock, Vertex, and Foundry, plus prompt-cache fixes.
- v2.1.247
Claude Code v2.1.247: SendFeedback Tool, /claude-api cost-optimize, and a Full 1M Auto-Compact Window for Sonnet 5
Claude Code v2.1.247 adds a SendFeedback tool for drafting feedback reports, /claude-api cost-optimize, and custom spinner tips for organizations, and moves Sonnet 5's auto-compact window to its full 1M context.
- v2.1.245
Claude Code v2.1.245: Fix for a Startup Crash on Linux Distributions With glibc 2.44
Claude Code v2.1.245 fixes a crash on startup on Linux distributions that ship glibc 2.44, such as Arch Linux, CachyOS, and Fedora Rawhide.
- v2.1.246
Claude Code v2.1.246: Auto Mode Rules in /permissions, Wildcard Bash Rule Warnings, and a /cd That Loads Project Settings
Claude Code v2.1.246 adds an Auto mode tab to /permissions, warns about wildcard Bash allow rules, applies project settings right after /cd, and stops sending gateway API keys with telemetry to Anthropic.
- v2.1.243
Claude Code v2.1.243: Loops Breakdown in /usage, a Curated /model Picker, and Prompt Cache TTL Settings
Claude Code v2.1.243 adds a Loops breakdown to /usage, the modelPicker, promptCacheTtl, and modelPricing settings, and keyless Console sign-in, and shrinks the native download and memory use.
- v2.1.241
Claude Code v2.1.241: Bug Fixes and Reliability Improvements
Claude Code v2.1.241 ships bug fixes and reliability improvements; Anthropic published no itemized changelog notes for this version.
- v2.1.240
Claude Code v2.1.240: Bug Fixes and Reliability Improvements
Claude Code v2.1.240 is listed in the changelog only as bug fixes and reliability improvements; Anthropic published no itemized notes for this version.
- v2.1.239
Claude Code v2.1.239: Data-Residency Cost Estimates, /claude-api upgrade for anthropic 1.x, and Cross-Session Messaging on Windows
Claude Code v2.1.239 adds the 1.1× data-residency premium to cost estimates, /claude-api upgrade for anthropic 1.x, synced cloud plugins, Windows cross-session messaging, and a fix for doubled Bedrock API calls.
- v2.1.237
Claude Code v2.1.237: Built-In Concise Output Style and a Prompt Caching Fix for LLM Gateways
Claude Code v2.1.237 adds a built-in Concise output style that leads with results and skips preamble, and fixes prompt caching for sessions using an LLM gateway or custom base URL.
- v2.1.238
Claude Code v2.1.238: Readline Keybindings, headersHelper for Plugin Marketplaces, and New Self-Hosted Runner Flags
Claude Code v2.1.238 adds a readline keybinding flavor, headersHelper for plugin marketplaces, self-hosted runner shutdown and proxy flags, stricter MCP headersHelper trust rules, and many Remote Control fixes.
- v2.1.236
Claude Code v2.1.236: ANTHROPIC_DEFAULT_MODEL, Idle Notifications for SendMessage, and Stronger macOS Sandbox Read-Deny Rules
Claude Code v2.1.236 adds ANTHROPIC_DEFAULT_MODEL, an opt-in notify_when_idle for cross-session SendMessage, stronger macOS sandbox read-deny rules, auto mode updates, and VS Code transcript screen reader support.
- v2.1.235
Claude Code v2.1.235: Prompt Spellcheck, Lighter Background Cloud Sessions, and More Precise Permission Dialogs
Claude Code v2.1.235 adds an optional spellcheck setting for the prompt input, reduces memory and CPU use while cloud sessions run in the background, and makes permission dialogs match what a grant would cover.
- v2.1.234
Claude Code v2.1.234: Auto-Continue After Usage Limit Resets, GitLab MR Badge, and Mid-Turn /permissions and /add-dir
Claude Code v2.1.234 continues sessions automatically when a claude.ai usage limit resets, adds a GitLab merge request badge, lets /permissions and /add-dir open mid-turn, and cuts the claude-api skill's context cost.
- v2.1.233
Claude Code v2.1.233: GitLab Merge Request Worktrees, Linux Bash Memory Limits, and Opt-In Todo Tools on Newer Models
Claude Code v2.1.233 adds GitLab merge request support to --worktree and claude agents, an opt-in Linux memory limit for Bash commands, a WebFetch cache TTL variable, and makes todo tools opt-in on newer models.
- v2.1.231
Claude Code v2.1.231: MCP OAuth Fix for Pre-Registered Clients Such as Slack
Claude Code v2.1.231 fixes MCP OAuth sign-in failing with a redirect URI mismatch for servers that use a pre-registered OAuth client, such as Slack.
- v2.1.232
Claude Code v2.1.232: Subagent Forking On by Default, @-Mentions for Other Sessions, and GitLab Support
Claude Code v2.1.232 turns on subagent forking by default, lets you @-mention other Claude sessions, adds GitLab marketplace support and token redaction, and fixes PowerShell and Git Bash permission bypasses.
- v2.1.229
Claude Code v2.1.229: Plugin Marketplace Command Sources, VS Code Session Groups, and Safer /commit-push-pr
Claude Code v2.1.229 adds command-based plugin marketplace sources, VS Code session groups, and gateway keepalive pings, stops /commit-push-pr from auto-approving dangerous flags, and fixes several crashes.
- v2.1.228
Claude Code v2.1.228: Hardened claude.ai-Synced Skills, Write Tool Overwrite Rules, and Self-Hosted Runner Fixes
Claude Code v2.1.228 hardens skills synced from claude.ai, lets newer models overwrite unread files with the Write tool, fails fast on bad Vertex AI credentials, and fixes self-hosted runner and cleanup bugs.
- v2.1.227
Claude Code v2.1.227: Clearer Slash-Command Menu and Fixes for claude-code-action and Fable Usage-Credit Prompts
Claude Code v2.1.227 refines the slash-command menu, reduces event-loop stalls, and fixes Bash failing under claude-code-action, wrong Fable usage-credit prompts for Max users, and a /tui rewind bug.
- v2.1.225
Claude Code v2.1.225: Gateway Spend-Limit Warnings, Workspace Trust in claude agents, and SendMessage to Remote Sessions
Claude Code v2.1.225 adds gateway spend-limit details to usage warnings and a workspace trust prompt to claude agents, and lets SendMessage start conversations with your Remote Control sessions by name.
- v2.1.226
Claude Code v2.1.226: Bug Fixes and Reliability Improvements
Claude Code v2.1.226 ships bug fixes and reliability improvements. Anthropic published no itemized release notes for this version.
- v2.1.224
Claude Code v2.1.224: Self-Hosted Environments, Cross-Session SendMessage, and Archive Plugin Sources
Claude Code v2.1.224 adds self-hosted environments via claude self-hosted-runner, cross-session SendMessage between your sessions, zip-based archive plugin sources, and more sandbox credential-masking options.
- v2.1.223
Claude Code v2.1.223: Permission-Bypass Fixes, /review Becomes a /code-review Alias, and Marketplace Owner Wildcards
Claude Code v2.1.223 closes several permission and sandbox gaps, makes /review an alias of /code-review, adds owner wildcards to marketplace policies, and extends CLAUDE_CODE_DISABLE_1M_CONTEXT to every native 1M model.
- v2.1.221
Claude Code v2.1.221: Focus View in VS Code, Sandbox Credential Masking, and Background Sessions That Commit and Push
Claude Code v2.1.221 adds a VS Code Focus view and sandbox credential masking on Linux and WSL, has background sessions commit and push their work, gives /fork its own worktree, and fixes permission-check issues.
- v2.1.222
Claude Code v2.1.222: Stronger Worktree Isolation, Remote Control Auto-Start Changes, and Ultraplan Removed
Claude Code v2.1.222 stops worktree-isolated sessions from running destructive git commands on the main checkout, blocks repo-local settings from enabling Remote Control auto-start, and removes ultraplan.
July 2026
22- v2.1.220
Claude Code v2.1.220: Bug Fixes and Reliability Improvements
Claude Code v2.1.220 ships bug fixes and reliability improvements. Anthropic published no itemized release notes for this version.
- v2.1.219
Claude Code v2.1.219: Claude Opus 5 Becomes the Default Opus Model, Nested Subagents, and a Strict Sandbox Allowlist
Claude Code v2.1.219 adds Claude Opus 5 as the default Opus model, lets subagents nest up to depth 3, adds a strict sandbox network allowlist and a DirectoryAdded hook, and defaults workflows to a medium size.
- v2.1.218
Claude Code v2.1.218: Background /code-review, Background Forked Skills, and Manual-Only /deep-research
Claude Code v2.1.218 runs /code-review as a background subagent, runs context: fork skills in the background by default, makes /deep-research manual-only, and fixes Windows paths, paste, and resume.
- v2.1.217
Claude Code v2.1.217: Emoji Shortcode Autocomplete, Subagent Concurrency and Nesting Limits, and Transcript Write Warnings
Claude Code v2.1.217 adds emoji shortcode autocomplete, caps concurrent subagents at 20 by default, stops subagents from nesting by default, and warns when transcript writes fail instead of losing them silently.
- v2.1.216
Claude Code v2.1.216: New sandbox.filesystem.disabled Setting, a Long-Session Slowdown Fix, and Worktree Isolation Fixes
Claude Code v2.1.216 adds the sandbox.filesystem.disabled setting, fixes a quadratic slowdown in long sessions, stops worktree-isolated subagents from reaching the shared checkout, and improves /context and /rewind.
- v2.1.215
Claude Code v2.1.215: Claude No Longer Runs /verify and /code-review on Its Own
Claude Code v2.1.215 contains one change: Claude no longer runs the /verify and /code-review skills on its own. Invoke them with /verify or /code-review when you want them.
- v2.1.214
Claude Code v2.1.214: Permission Check Fixes, the EndConversation Tool, and Narrower dir/** Rule Matching
Claude Code v2.1.214 tightens Bash and PowerShell permission checks, narrows single-segment dir/** rules to <cwd>/dir, adds the EndConversation tool, and fixes many Windows and background session issues.
- v2.1.212
Claude Code v2.1.212: /fork Moves to Background Sessions, Per-Session Search and Subagent Caps, and MCP Auto-Backgrounding
Claude Code v2.1.212 turns /fork into a background-session copy (the old behavior is now /subtask), adds claude auto-mode reset, caps web searches and subagent spawns per session, and backgrounds long MCP calls.
- v2.1.211
Claude Code v2.1.211: Subagent Text in stream-json, Always-Allow Rules at the Repo Root, and a Prompt-Caching Fix
Claude Code v2.1.211 adds --forward-subagent-text for stream-json output, saves always-allow rules at the repository root, and fixes a prompt-caching regression on Bedrock, Vertex, Mantle, and Foundry.
- v2.1.208
Claude Code v2.1.208: Screen Reader Mode, Vim Insert-Mode Remaps, and a Process Wrapper for Corporate Launchers
Claude Code v2.1.208 adds an opt-in screen reader mode, the vimInsertModeRemaps setting, and CLAUDE_CODE_PROCESS_WRAPPER for corporate launchers, plus memory, performance, and background agent fixes.
- v2.1.209
Claude Code v2.1.209: Fix for /model and Other Dialogs in Background Sessions
Claude Code v2.1.209 is a single-fix release: /model and other dialogs are no longer blocked in claude agents background sessions, after an overly broad guard was reverted.
- v2.1.210
Claude Code v2.1.210: Live Elapsed-Time Counter, Permission Rule Warnings, and a Worktree Isolation Fix
Claude Code v2.1.210 adds a live elapsed-time counter for tool calls and startup warnings for Write, NotebookEdit, and Glob permission rules, and stops worktree-isolated subagents mutating the main checkout.
- v2.1.207
Claude Code v2.1.207: Auto Mode Without Opt-In on Bedrock, Vertex AI, and Foundry, Opus 4.8 Default, and Plugin Config Changes
Claude Code v2.1.207 makes auto mode available without opt-in on Bedrock, Vertex AI, and Foundry, defaults Bedrock, Vertex, and Claude Platform on AWS to Claude Opus 4.8, and tightens plugin config handling.
- v2.1.206
Claude Code v2.1.206: /doctor Suggests Trimming CLAUDE.md, Gateway Login, and Background Agent Upgrades
Claude Code v2.1.206 adds /cd path suggestions, a /doctor check for trimming CLAUDE.md, gateway endpoint support in /login, and an EnterWorktree confirmation, plus fixes for MCP timeouts, OAuth, and the agents view.
- v2.1.204
Claude Code v2.1.204: Headless SessionStart Hook Streaming Fix
Claude Code v2.1.204 is a focused maintenance release that fixes hook events not streaming during SessionStart hooks in headless sessions, preventing remote workers from being idle-reaped mid-hook.
- v2.1.205
Claude Code v2.1.205: /doctor Becomes a Full Checkup, New Auto Mode Safeguards, and Agent View Improvements
Claude Code v2.1.205 turns /doctor into a setup checkup that can diagnose and fix issues, adds auto mode safeguards, improves the agent view, and cuts updater peak memory by roughly 400 MB.
- v2.1.203
Claude Code v2.1.203: Background Agent Reliability Overhaul and Performance Gains
Claude Code v2.1.203 delivers a login expiry warning, a manual permission mode badge, MCP roots for additional working directories, and a large batch of background session, worktree, and performance fixes.
- v2.1.202
Claude Code v2.1.202: Workflow Controls, Telemetry, and Remote Control Fixes
Claude Code v2.1.202 adds a dynamic workflow size setting and OpenTelemetry workflow attributes, plus a large batch of fixes for Remote Control, session management, and network reliability.
- v2.1.200
Claude Code v2.1.200: Manual Permission Mode and Background Agent Reliability
Claude Code v2.1.200 renames the default permission mode to Manual, stops AskUserQuestion dialogs from auto-continuing, and ships a wave of background agent and accessibility fixes.
- v2.1.201
Claude Code v2.1.201: Harness Reminder Change for Claude Sonnet 5 Sessions
Claude Code v2.1.201 is a focused update that changes how harness reminders are delivered in Claude Sonnet 5 sessions, no longer using the mid-conversation system role.
- v2.1.199
Claude Code v2.1.199: Stacked Skill Invocations and Major Reliability Fixes for Subagents and Background Agents
Claude Code v2.1.199 lets stacked slash-skill invocations load multiple skills, adds automatic retry for transient rate-limit errors, and delivers extensive reliability fixes for subagents, background agents, and streaming responses.
- v2.1.198
Claude Code v2.1.198: Background Subagents by Default and Claude in Chrome Goes GA
Claude Code v2.1.198 makes subagents run in the background by default, brings Claude in Chrome to general availability, adds a /dataviz skill, and ships extensive fixes for background agents and agent teams.
June 2026
30- v2.1.197
Claude Code v2.1.197: Claude Sonnet 5 Becomes the Default Model
Claude Code v2.1.197 introduces Claude Sonnet 5 as the new default model, featuring a native 1M-token context window and promotional pricing of $2/$10 per Mtok through August 31.
- v2.1.196
Claude Code v2.1.196: Organization Default Models and Background Session Reliability
Claude Code v2.1.196 introduces organization default models, readable session names, clickable file attachments, an MCP security hardening, and major background session reliability improvements.
- v2.1.195
Claude Code v2.1.195: Hook Matcher Precision, Voice Dictation Fixes, and Background Agent Reliability
Claude Code v2.1.195 makes hook matchers exact-match for hyphenated identifiers, fixes voice dictation on macOS and for space-free languages, and hardens background agents and plugins.
- v2.1.193
Claude Code v2.1.193: Auto Mode Controls, Telemetry Enhancements, and Background Agent Fixes
Claude Code v2.1.193 adds a shell-wide auto-mode classifier setting, assistant response OpenTelemetry logging, bash path autocomplete, and a batch of fixes for background sessions and agents.
- v2.1.190
Claude Code v2.1.190: Bug Fixes and Reliability Improvements
Claude Code v2.1.190 is a maintenance release focused on bug fixes and reliability improvements for a more stable development experience.
- v2.1.191
Claude Code v2.1.191: Rewind Past /clear, MCP Reliability, and Major Performance Gains
Claude Code v2.1.191 adds /rewind support for resuming conversations from before /clear, improves MCP server reliability and OAuth retries, and cuts streaming CPU usage by roughly 37%.
- v2.1.187
Claude Code v2.1.187: Sandbox Credential Protection and Org Model Restrictions
Claude Code v2.1.187 introduces a sandbox.credentials setting to shield secrets from sandboxed commands, org-configured model restrictions, mouse click support in menus, and a large batch of reliability fixes.
- v2.1.186
Claude Code v2.1.186: MCP CLI Authentication and Smarter Bash Command Handling
Claude Code v2.1.186 adds claude mcp login/logout commands, automatic responses to ! bash output, better background subagent permission prompts, and a long list of stability fixes.
- v2.1.185
Claude Code v2.1.185: Calmer Stream-Stall Messaging
Claude Code v2.1.185 refines the stream-stall hint with clearer wording and a longer 20-second trigger threshold, reducing noise during brief API delays.
- v2.1.183
Claude Code v2.1.183: Safer Auto Mode and Terminal Stability Fixes
Claude Code v2.1.183 blocks destructive git and infrastructure commands in auto mode, adds deprecated-model warnings and new config options, and fixes a wide range of TUI, subagent, and teammate issues.
- v2.1.181
Claude Code v2.1.181: Inline Config Commands, Smoother Streaming, and Startup Fixes
Claude Code v2.1.181 introduces /config key=value syntax, Apple Events sandbox support, and a Bun 1.4 upgrade, alongside extensive fixes for startup, streaming, and file writing on network drives.
- v2.1.179
Claude Code v2.1.179: Connection Resilience and Terminal Fixes
Claude Code v2.1.179 preserves partial responses on mid-stream connection drops, fixes WSL2 mouse-wheel scrolling, and resolves a range of UI and remote session issues.
- v2.1.178
Claude Code v2.1.178: Parameter-Based Permission Rules and Nested .claude Directory Support
Claude Code v2.1.178 introduces Tool(param:value) permission rule syntax, smarter nested .claude/skills loading, auto mode subagent review, and a large batch of subagent and reliability fixes.
- v2.1.176
Claude Code v2.1.176: Enhanced Internationalization and Background Session Improvements
Claude Code v2.1.176 brings multilingual session titles, improved Bedrock credential caching, and comprehensive fixes for Remote Control and background sessions.
- v2.1.177
Claude Code v2.1.177 Release Notes
Latest Claude Code update v2.1.177 is now available with incremental improvements and bug fixes for enhanced development experience.
- v2.1.174
Claude Code v2.1.174 Release Notes
Claude Code v2.1.174 brings improved mouse scroll control, better model picker functionality, and numerous bug fixes for a smoother development experience.
- v2.1.175
Claude Code v2.1.175 Release Notes
Claude Code v2.1.175 introduces the enforceAvailableModels managed setting for enhanced model access control and security in enterprise environments.
- v2.1.172
Claude Code v2.1.172 Release Notes: Nested Sub-agents and AWS Integration Improvements
Claude Code v2.1.172 introduces nested sub-agents up to 5 levels deep, improved AWS Bedrock region detection, and numerous bug fixes for enhanced performance.
- v2.1.173
Claude Code v2.1.173 Release Notes
Latest Claude Code update fixes Fable 5 model name normalization and resolves Windows sandbox startup warnings for improved user experience.
- v2.1.169
Claude Code v2.1.169 Release Notes
Claude Code v2.1.169 introduces safe mode troubleshooting, new /cd command, and numerous bug fixes for improved performance and stability.
- v2.1.170
Claude Code v2.1.170 Release Notes
Claude Code v2.1.170 introduces Claude Fable 5, a groundbreaking Mythos-class model, and fixes session transcript saving issues.
- v2.1.168
Claude Code v2.1.168 Release Notes
Claude Code v2.1.168 introduces important bug fixes and reliability improvements for enhanced stability and user experience.
- v2.1.166
Claude Code v2.1.166 Release Notes
Claude Code v2.1.166 introduces fallback model configuration, enhanced security features, and numerous bug fixes for improved stability and user experience.
- v2.1.167
Claude Code v2.1.167 Release Notes
Claude Code v2.1.167 is now available with important bug fixes and reliability improvements for enhanced development experience.
- v2.1.163
Claude Code v2.1.163: Enhanced Plugin Management and Better Session Handling
Claude Code v2.1.163 introduces version management controls, new plugin commands, improved hook handling, and numerous stability fixes for power users.
- v2.1.165
Claude Code v2.1.165 Release Notes
Claude Code v2.1.165 brings essential bug fixes and reliability improvements for a smoother development experience.
- v2.1.162
Claude Code v2.1.162 Release Notes
Claude Code v2.1.162 brings enhanced agent management with JSON status output, improved slash command UX, and critical fixes for Windows permissions and startup hangs.
- v2.1.161
Claude Code v2.1.161: Enhanced Metrics, Improved Agent Management, and Better Tool Reliability
Claude Code v2.1.161 brings custom metric dimensions with OTEL labels, better agent progress visibility, and numerous reliability improvements for tools and workflows.
- v2.1.160
Claude Code v2.1.160: Enhanced Security and Stability Improvements
Claude Code v2.1.160 introduces important security prompts for shell and config files, plus numerous bug fixes for Windows, WSL, and background sessions.
- v2.1.159
Claude Code v2.1.159 Release Notes
Claude Code v2.1.159 focuses on internal infrastructure improvements to enhance stability and performance for power users.
May 2026
27- v2.1.157
Claude Code v2.1.157 Release Notes
Claude Code v2.1.157 introduces automatic plugin loading, improved agent management, and numerous bug fixes for better development workflow.
- v2.1.158
Claude Code v2.1.158 Release Notes
Claude Code v2.1.158 brings Auto mode to Bedrock, Vertex, and Foundry platforms for Opus 4.7 and 4.8 models.
- v2.1.156
Claude Code v2.1.156 Release Notes
Claude Code v2.1.156 fixes critical API errors when using Opus 4.8 with thinking blocks. Update now for improved stability.
- v2.1.153
Claude Code v2.1.153 Release Notes
Claude Code v2.1.153 introduces Git LFS skip options, improved auto-update notifications, enhanced agent management, and numerous bug fixes for better stability.
- v2.1.154
Claude Code v2.1.154: Opus 4.8, Dynamic Workflows, and Major Performance Improvements
Claude Code v2.1.154 introduces Opus 4.8 with high-effort defaults, revolutionary dynamic workflows, and faster performance at reduced costs.
- v2.1.152
Claude Code v2.1.152 Release Notes
Claude Code v2.1.152 introduces enhanced code review automation with fix application, improved skills management, and better session handling for power users.
- v2.1.149
Claude Code v2.1.149: Enhanced Usage Tracking, Improved Navigation, and Critical Security Fixes
Claude Code v2.1.149 brings detailed usage breakdowns, keyboard navigation for diff views, and important security fixes for PowerShell and sandbox permissions.
- v2.1.150
Claude Code v2.1.150 Release Notes
Claude Code v2.1.150 introduces internal infrastructure improvements to enhance stability and performance for power users.
- v2.1.148
Claude Code v2.1.148 Release Notes
Claude Code v2.1.148 fixes critical Bash tool regression affecting command execution for some users. Quick patch release restores proper exit code handling.
- v2.1.146
Claude Code v2.1.146 Release Notes
Claude Code v2.1.146 brings improved code review commands, Windows PowerShell fixes, MCP pagination improvements, and enhanced auto-updater reliability.
- v2.1.147
Claude Code v2.1.147: /simplify Becomes /code-review, Pinned Background Sessions, and a Run of Windows Fixes
Claude Code v2.1.147 renames /simplify to /code-review with an effort level and --comment for inline PR comments, keeps pinned background sessions alive, enforces enterprise login restrictions against API-key sessions, and fixes eight Windows and PowerShell issues.
- v2.1.145
Claude Code v2.1.145 Release Notes
Claude Code v2.1.145 brings enhanced agent management, improved plugin discovery, and critical security fixes for power users.
- v2.1.144
Claude Code v2.1.144: Enhanced Background Sessions and Major Bug Fixes
Claude Code v2.1.144 brings improved background session management with /resume support, better plugin discovery features, and fixes for terminal rendering and session stability issues.
- v2.1.143
Claude Code v2.1.143: Enhanced Plugin Management and Background Session Improvements
Claude Code v2.1.143 introduces smart plugin dependency management, context cost estimates, and significant improvements to background sessions and PowerShell integration.
- v2.1.142
Claude Code v2.1.142: Enhanced Agent Configuration and Improved Stability
Claude Code v2.1.142 brings enhanced agent configuration options, Opus 4.7 for fast mode, and numerous stability improvements for background sessions and plugin management.
- v2.1.141
Claude Code v2.1.141: Enhanced Agent Management and UI Improvements
Claude Code v2.1.141 introduces terminal sequence hooks, improved agent management, better permission handling, and numerous bug fixes for a smoother coding experience.
- v2.1.140
Claude Code v2.1.140 Release Notes
Claude Code v2.1.140 brings significant improvements to agent tools, background service stability, and plugin management with enhanced error handling.
- v2.1.139
Claude Code v2.1.139: Agent View, Goal Setting, and Enhanced Workflow Control
Claude Code v2.1.139 introduces agent view for session management, the /goal command for automated task completion, and enhanced MCP server capabilities for power users.
- v2.1.137
Claude Code v2.1.137 Release Notes
Claude Code v2.1.137 fixes VSCode extension activation issues on Windows. Get the latest update for improved Windows compatibility.
- v2.1.138
Claude Code v2.1.138 Release Notes
Claude Code v2.1.138 brings important internal improvements and bug fixes to enhance stability and performance for power users.
- v2.1.133
Claude Code v2.1.133 Release Notes
Claude Code v2.1.133 introduces enhanced worktree management, improved sandbox configuration, and critical bug fixes for enterprise workflows.
- v2.1.136
Claude Code v2.1.136 Release Notes
Claude Code v2.1.136 introduces enterprise feedback surveys, MCP server stability fixes, and numerous UI/UX improvements for VS Code and JetBrains users.
- v2.1.132
Claude Code v2.1.132: Enhanced Terminal Experience and Improved Stability
Claude Code v2.1.132 brings significant improvements to terminal handling, Unicode support, and session management with new environment variables and bug fixes.
- v2.1.129
Claude Code v2.1.129 Release Notes
Claude Code v2.1.129 brings plugin URL fetching, auto-update capabilities, and numerous improvements to history navigation and bug fixes for power users.
- v2.1.131
Claude Code v2.1.131 Release Notes
Claude Code v2.1.131 fixes critical Windows VS Code extension activation issues and Mantle endpoint authentication problems.
- v2.1.128
Claude Code v2.1.128: Enhanced MCP Tools, Plugin Improvements, and Quality of Life Updates
Claude Code v2.1.128 brings significant improvements to MCP server management, plugin handling, and fixes numerous bugs for a smoother development experience.
- v2.1.126
Claude Code v2.1.126: Enhanced Project Management and Cross-Platform Improvements
Claude Code v2.1.126 introduces powerful project purge commands, improved gateway compatibility, enhanced authentication flows, and numerous platform-specific fixes.
April 2026
28- v2.1.123
Claude Code v2.1.123 Release Notes
Claude Code v2.1.123 fixes critical OAuth authentication issues when experimental betas are disabled, resolving 401 retry loops.
- v2.1.121
Claude Code v2.1.121 Release Notes
Claude Code v2.1.121 brings enhanced MCP server controls, improved plugin management, and significant memory leak fixes for power users.
- v2.1.122
Claude Code v2.1.122: Bedrock Service Tiers, PR URLs in /resume, and a Run of Vertex and Bedrock Fixes
Claude Code v2.1.122 adds ANTHROPIC_BEDROCK_SERVICE_TIER, lets /resume find a session by pasting its PR URL, and fixes structured-output and effort errors on Vertex AI and Bedrock inference profile ARNs.
- v2.1.119
Claude Code v2.1.119: Enhanced Configuration Persistence and Cross-Platform Support
Claude Code v2.1.119 introduces persistent configuration settings, enhanced GitLab and Bitbucket support, improved PowerShell integration, and numerous bug fixes for a better development experience.
- v2.1.120
Claude Code v2.1.120: Windows Without Git Bash, claude ultrareview for CI, and a File-Descriptor Exhaustion Fix
Claude Code v2.1.120 drops the Git for Windows requirement in favour of PowerShell, adds a non-interactive claude ultrareview subcommand for CI, and fixes find in the Bash tool exhausting open file descriptors and crashing the host.
- v2.1.118
Claude Code v2.1.118: Vim Visual Mode, Enhanced Theming, and MCP Improvements
Claude Code v2.1.118 introduces vim visual mode, custom theme creation, improved MCP OAuth handling, and streamlined usage statistics.
- v2.1.117
Claude Code v2.1.117: Enhanced Performance and Better Plugin Management
Claude Code v2.1.117 brings faster startup times, improved plugin dependency handling, and better session management for power users.
- v2.1.116
Claude Code v2.1.116: Major Performance Improvements and Enhanced User Experience
Claude Code v2.1.116 delivers significant performance gains for large sessions, improved MCP startup times, and enhanced terminal experience across VS Code, Cursor, and Windsurf.
- v2.1.114
Claude Code v2.1.114 Release Notes
Claude Code v2.1.114 fixes a critical crash in permission dialogs when agent team members request tool permissions.
- v2.1.112
Claude Code v2.1.112 Release Notes
Claude Code v2.1.112 fixes the claude-opus-4-7 temporary unavailability issue in auto mode. Update now for improved stability.
- v2.1.113
Claude Code v2.1.113: A Native Binary, Three Bash Permission Hardenings, and 22 Fixes
Claude Code v2.1.113 moves the CLI to a native per-platform binary, adds sandbox.network.deniedDomains, closes three Bash permission gaps around exec wrappers, find -exec and macOS /private paths, and fixes a UI-spoofing vector in the transcript.
- v2.1.110
Claude Code v2.1.110: TUI Mode, Push Notifications, and Major UX Improvements
Claude Code v2.1.110 introduces TUI fullscreen mode, mobile push notifications, and enhanced plugin management for power users.
- v2.1.111
Claude Code v2.1.111: Opus 4.7 xhigh, Auto Mode, and Advanced Code Review
Claude Code v2.1.111 introduces Claude Opus 4.7 with xhigh effort level, Auto mode for Max subscribers, advanced code review tools, and enhanced UX improvements.
- v2.1.109
Claude Code v2.1.109 Release Notes
Claude Code v2.1.109 introduces an improved extended-thinking indicator with rotating progress hints for better user experience.
- v2.1.105
Claude Code v2.1.105: Enhanced Plugin Monitoring and Improved User Experience
Claude Code v2.1.105 introduces background plugin monitoring, PreCompact hooks, improved stream handling, and numerous UI fixes for a smoother development experience.
- v2.1.107
Claude Code v2.1.107 Release Notes
Claude Code v2.1.107 introduces improved thinking hints display for better user experience during extended operations.
- v2.1.108
Claude Code v2.1.108 Release Notes
Claude Code v2.1.108 introduces enhanced prompt caching controls, session recap features, improved slash commands, and numerous bug fixes for a better development experience.
- v2.1.104
Claude Code v2.1.104 Release Notes
Claude Code v2.1.104 is now available with important updates and improvements for developers and power users.
- v2.1.100
Claude Code v2.1.100 Release Notes
Claude Code v2.1.100 is now available with important updates and improvements for power users and developers.
- v2.1.101
Claude Code v2.1.101: Enhanced Team Collaboration and Enterprise Support
Claude Code v2.1.101 introduces team onboarding commands, enterprise TLS proxy support, and significant improvements to ultraplan, focus mode, and error handling.
- v2.1.97
Claude Code v2.1.97: Focus View Toggle and Enhanced Permissions
Claude Code v2.1.97 introduces focus view toggle with Ctrl+O, improved permissions handling, and numerous bug fixes for a more stable development experience.
- v2.1.98
Claude Code v2.1.98 Release Notes
Major update to Claude Code with Google Vertex AI integration, enhanced security features, and comprehensive bug fixes for improved developer experience.
- v2.1.94
Claude Code v2.1.94: Enhanced Bedrock Support and Improved User Experience
Claude Code v2.1.94 brings Amazon Bedrock support via Mantle, higher default effort levels, and numerous bug fixes for a smoother development experience.
- v2.1.96
Claude Code v2.1.96 Release Notes
Claude Code v2.1.96 fixes critical Bedrock authentication issues that were causing 403 errors when using AWS bearer tokens or skipping authentication.
- v2.1.92
Claude Code v2.1.92 Release Notes
Claude Code v2.1.92 introduces Bedrock setup wizard, enhanced cost tracking, and numerous fixes for tmux, prompt caching, and tool validation.
- v2.1.91
Claude Code v2.1.91 Release Notes
Claude Code v2.1.91 introduces MCP tool result persistence, shell execution controls, multi-line deep links, and important bug fixes for transcript handling and plan mode.
- v2.1.90
Claude Code v2.1.90 Release Notes
Claude Code v2.1.90 introduces interactive PowerUp lessons, performance improvements, and critical bug fixes for a smoother coding experience.
- v2.1.89
Claude Code v2.1.89 Release Notes
Claude Code v2.1.89 introduces deferred permissions, flicker-free rendering, and enhanced MCP support with numerous bug fixes for a smoother development experience.
March 2026
21- v2.1.87
Claude Code v2.1.87 Release Notes
Claude Code v2.1.87 fixes critical message delivery issues in Cowork Dispatch, ensuring reliable collaboration for power users.
- v2.1.88
Claude Code v2.1.88: A Tag With No Release
Claude Code v2.1.88 exists as a git tag but was never published: no npm package, no release notes, and no changelog entry. The features this page once described shipped in v2.1.89.
- v2.1.86
Claude Code v2.1.86 Release Notes
Claude Code v2.1.86 brings major performance improvements, VCS integration enhancements, and critical bug fixes for power users.
- v2.1.85
Claude Code v2.1.85 Release Notes
Claude Code v2.1.85 brings enhanced MCP server management, conditional hooks, improved deep linking, and numerous bug fixes for a more robust development experience.
- v2.1.84
Claude Code v2.1.84: PowerShell Support and Enhanced Workflow Management
Claude Code v2.1.84 introduces PowerShell tool support for Windows users, improved MCP server management, and numerous performance enhancements for power users.
- v2.1.83
Claude Code v2.1.83 Release Notes
Claude Code v2.1.83 introduces managed settings drop-in directories, transcript search, improved security controls, and numerous bug fixes for enhanced development workflow.
- v2.1.81
Claude Code v2.1.81 Release Notes
Claude Code v2.1.81 introduces the new --bare flag for scripted operations, improved channel permissions, and numerous bug fixes for voice mode, authentication, and Remote Control sessions.
- v2.1.80
Claude Code v2.1.80: Enhanced Rate Limits Monitoring and Plugin Management
Claude Code v2.1.80 introduces rate limits monitoring in statusline, inline plugin configuration, and numerous bug fixes for a smoother development experience.
- v2.1.79
Claude Code v2.1.79: Console Authentication, Remote Control, and Performance Improvements
Claude Code v2.1.79 introduces Anthropic Console authentication, VSCode remote control features, improved memory usage, and numerous bug fixes for a smoother coding experience.
- v2.1.78
Claude Code v2.1.78: Enhanced Error Handling and Plugin Persistence
Claude Code v2.1.78 introduces StopFailure hooks, persistent plugin data, improved terminal notifications, and numerous bug fixes for a more robust development experience.
- v2.1.77
Claude Code v2.1.77 Release Notes
Claude Code v2.1.77 brings major token limit increases for Opus and Sonnet models, enhanced sandbox controls, and critical bug fixes for a smoother development experience.
- v2.1.76
Claude Code v2.1.76 Release Notes
Major update brings MCP elicitation support, performance improvements, and over 20 bug fixes to Claude Code. Enhanced worktree management and new session controls included.
- v2.1.75
Claude Code v2.1.75 Release Notes
Claude Code v2.1.75 is now available with incremental improvements and bug fixes for enhanced development experience.
- v2.1.74
Claude Code v2.1.74 Release Notes
Claude Code v2.1.74 brings actionable context optimization suggestions, improved memory management, and critical bug fixes for enhanced developer productivity.
- v2.1.73
Claude Code v2.1.73: modelOverrides, Permission-Prompt Freezes, and a Bedrock Model Default Change
Claude Code v2.1.73 adds a modelOverrides setting for custom provider model IDs, fixes freezes and 100% CPU loops from permission prompts, stops subagents being silently downgraded on Bedrock, Vertex and Foundry, and changes the default Opus model there to Opus 4.6.
- v2.1.72
Claude Code v2.1.72: Enhanced Workflow Tools and Performance Improvements
Claude Code v2.1.72 introduces new workflow commands, improved voice input, reduced bundle size by 510KB, and enhanced bash command parsing for power users.
- v2.1.71
Claude Code v2.1.71: Automation Tools and Critical Bug Fixes
Claude Code v2.1.71 introduces powerful automation features including /loop command and cron scheduling, plus voice mode improvements and critical bug fixes for enhanced stability.
- v2.1.70
Claude Code v2.1.70: Major Bug Fixes and Performance Improvements
Claude Code v2.1.70 delivers critical API fixes, Windows compatibility improvements, and performance optimizations for power users.
- v2.1.66
Claude Code v2.1.66 Release Notes
Latest Claude Code v2.1.66 update brings maintenance improvements and bug fixes for enhanced development experience.
- v2.1.68
Claude Code v2.1.68: Medium Effort Default and Ultrathink Returns
Claude Code v2.1.68 introduces medium effort as the default for Opus 4.6, brings back the ultrathink keyword, and streamlines model availability for enhanced performance.
- v2.1.69
Claude Code v2.1.69: The Biggest Release Yet with 100+ Changes
Claude Code v2.1.69 is the largest update in the 2.1.x series. New /claude-api skill, InstructionsLoaded hook, ${CLAUDE_SKILL_DIR} variable, 10 new voice languages, agent worktree isolation, and massive memory/performance improvements.
February 2026
29- v2.1.63
Claude Code v2.1.63 Release Notes
Major performance improvements and new features in Claude Code v2.1.63, including new slash commands, HTTP hooks, and significant memory leak fixes.
- v2.1.62
Claude Code v2.1.62 Release Notes
Claude Code v2.1.62 fixes a critical prompt suggestion cache regression that was reducing cache hit rates for better performance.
- v2.1.59
Claude Code v2.1.59 Release Notes
Claude Code v2.1.59 introduces automatic context memory, interactive code copying, improved bash command handling, and important bug fixes for power users.
- v2.1.61
Claude Code v2.1.61: A Windows Config Corruption Fix
Claude Code v2.1.61 has a single changelog entry: concurrent writes no longer corrupt the config file on Windows.
- v2.1.53
Claude Code v2.1.53 Release Notes
Claude Code v2.1.53 delivers crucial stability improvements, fixing UI flickers, bulk agent operations, and platform-specific crashes across Windows, Linux, and ARM64 systems.
- v2.1.55
Claude Code v2.1.55: A Windows BashTool Fix
Claude Code v2.1.55 has a single changelog entry: BashTool no longer fails on Windows with an EINVAL error.
- v2.1.56
Claude Code v2.1.56 Release Notes
Claude Code v2.1.56 fixes critical VS Code crashes related to the 'claude-vscode.editor.openLast' command, improving stability for power users.
- v2.1.58
Claude Code v2.1.58: Remote Control Reaches More Users
Claude Code v2.1.58 has a single changelog entry: Remote Control is expanded to more users.
- v2.1.51
Claude Code v2.1.51 Release Notes
Claude Code v2.1.51 introduces remote control capabilities, enhanced security fixes, and performance improvements for plugin management and tool execution.
- v2.1.52
Claude Code v2.1.52 Release Notes
Claude Code v2.1.52 fixes a critical Windows extension crash that was preventing VS Code users from accessing the openLast command.
- v2.1.50
Claude Code v2.1.50: Major Memory Optimizations and Worktree Isolation
Claude Code v2.1.50 brings significant memory leak fixes, worktree isolation support, and enhanced LSP configuration for power users.
- v2.1.49
Claude Code v2.1.49: Enhanced Performance and Better Plugin Management
Claude Code v2.1.49 delivers significant performance improvements, better interrupt handling, enhanced plugin management, and introduces Sonnet 4.6 with 1M context.
- v2.1.47
Claude Code v2.1.47: Major Windows Fixes and Performance Improvements
Claude Code v2.1.47 brings crucial Windows compatibility fixes, improved VS Code integration, and significant performance optimizations for power users.
- v2.1.46
Claude Code v2.1.46: claude.ai MCP Connectors and an Orphaned-Process Fix, Recorded but Never Published
Claude Code v2.1.46 appears in the official changelog with support for claude.ai MCP connectors and a fix for orphaned processes after a terminal disconnect on macOS, but it was never published to npm and has no git tag.
- v2.1.44
Claude Code v2.1.44 Release Notes
Claude Code v2.1.44 is now available with critical authentication bug fixes. Update now for improved stability and reliability.
- v2.1.45
Claude Code v2.1.45 Release Notes
Claude Code v2.1.45 introduces Claude Sonnet 4.6 support, enhanced plugin management, and critical bug fixes for Agent Teams and sandbox operations.
- v2.1.43
Claude Code v2.1.43: Three Fixes, Recorded but Never Published
Claude Code v2.1.43 appears in the official changelog with three fixes — an AWS auth timeout, spurious agent-directory warnings, and a beta header on Vertex and Bedrock — but it was never published to npm and has no git tag.
- v2.1.42
Claude Code v2.1.42 Release Notes
Claude Code v2.1.42 brings important bug fixes for /resume command, Opus announcement display, and improved error handling for image processing.
- v2.1.41
Claude Code v2.1.41 Release Notes
Claude Code v2.1.41 brings new authentication CLI commands, Windows ARM64 support, improved session naming, and numerous bug fixes for a smoother development experience.
- v2.1.39
Claude Code v2.1.39 Release Notes
Claude Code v2.1.39 brings significant terminal improvements and critical bug fixes for better performance and stability.
- v2.1.38
Claude Code v2.1.38: Critical Bug Fixes and Security Improvements
Claude Code v2.1.38 delivers essential bug fixes for VS Code integration, terminal functionality, and enhanced security features for power users.
- v2.1.37
Claude Code v2.1.37 Release Notes
Claude Code v2.1.37 fixes the /fast command availability issue after enabling /extra-usage. Quick patch release for improved user experience.
- v2.1.36
Claude Code v2.1.36 Release Notes
Claude Code v2.1.36 introduces Fast Mode for Opus 4.6, delivering enhanced performance for power users.
- v2.1.33
Claude Code v2.1.33 Release Notes
Major improvements to multi-agent workflows, memory persistence, and VSCode integration in Claude Code v2.1.33.
- v2.1.34
Claude Code v2.1.34 Release Notes
Claude Code v2.1.34 delivers critical stability fixes for agent teams and sandbox security improvements for power users.
- v2.1.32
Claude Code v2.1.32 Release Notes
Claude Code v2.1.32 brings Claude Opus 4.6, experimental agent teams, automatic memory features, and numerous improvements for power users.
- v2.1.31
Claude Code v2.1.31 Release Notes
Claude Code v2.1.31 brings session resume hints, improved Japanese IME support, critical PDF handling fixes, and enhanced system prompts for better tool usage.
- v2.1.30
Claude Code v2.1.30: PDF Tools, OAuth & Performance
Claude Code v2.1.30 introduces selective PDF page reading, pre-configured OAuth credentials for MCP servers, debugging tools, and significant performance optimizations.
- v2.1.29
Claude Code v2.1.29 Release Notes
Claude Code v2.1.29 fixes critical startup performance issues when resuming sessions with saved hook context, improving user experience for power users.
January 2026
20- v2.1.27
Claude Code v2.1.27: GitHub Integration & Permissions
Claude Code v2.1.27 brings improved GitHub PR integration, enhanced debugging capabilities, and refined permission controls for power users.
- v2.1.23
Claude Code v2.1.23: Enterprise & Performance Updates
Claude Code v2.1.23 brings better corporate network support, customizable UI elements, and numerous bug fixes for a smoother development experience.
- v2.1.25
Claude Code v2.1.25 Release Notes
Claude Code v2.1.25 fixes beta header validation errors for Bedrock and Vertex gateway users, improving compatibility with experimental beta settings.
- v2.1.21
Claude Code v2.1.21 Release Notes
Claude Code v2.1.21 introduces Japanese IME support, Python virtual environment automation, and critical bug fixes for improved development workflow.
- v2.1.22
Claude Code v2.1.22 Release Notes
Claude Code v2.1.22 fixes structured outputs for non-interactive mode, improving reliability for automated workflows and batch processing.
- v2.1.20
Claude Code v2.1.20: Navigation, PR & Editor Updates
Claude Code v2.1.20 brings improved vim navigation, PR status indicators, external editor shortcuts, and numerous bug fixes for a smoother coding experience.
- v2.1.19
Claude Code v2.1.19: Command Shortcuts & Process Mgmt
Claude Code v2.1.19 introduces shorthand argument syntax, fixes processor compatibility issues, and improves session management across different directories.
- v2.1.16
Claude Code v2.1.16: Task Management & VSCode Updates
Claude Code v2.1.16 introduces a new task management system with dependency tracking, native VSCode plugin support, and several critical bug fixes for power users.
- v2.1.17
Claude Code v2.1.17 Release Notes
Claude Code v2.1.17 fixes critical crashes on processors without AVX instruction support, improving compatibility across hardware configurations.
- v2.1.18
Claude Code v2.1.18: Customizable Keyboard Shortcuts
Claude Code v2.1.18 has a single changelog entry: customizable keyboard shortcuts, with per-context keybindings and chord sequences, configured through /keybindings.
- v2.1.15
Claude Code v2.1.15 Release Notes
Claude Code v2.1.15 brings improved performance, better npm installation guidance, and fixes for context warnings and MCP server timeouts.
- v2.1.14
Claude Code v2.1.14 Release Notes
Claude Code v2.1.14 brings history-based autocomplete, plugin search, memory fixes, and numerous improvements for power users.
- v2.1.10
Claude Code v2.1.10: A Setup Hook, OAuth URL Copying, and Startup Fixes
Claude Code v2.1.10 adds a Setup hook event driven by --init, --init-only and --maintenance, a keyboard shortcut for copying the OAuth URL, and fixes a heredoc crash along with startup and file-suggestion behaviour.
- v2.1.11
Claude Code v2.1.11 Release Notes
Claude Code v2.1.11 is now available with important fixes for MCP connection stability and improved HTTP/SSE transport performance.
- v2.1.12
Claude Code v2.1.12 Release Notes
Claude Code v2.1.12 is now available with important message rendering bug fixes for improved stability and user experience.
- v2.1.9
Claude Code v2.1.9 Release Notes
Claude Code v2.1.9 brings enhanced MCP tool configuration, better session management, and improved terminal support for power users.
- v2.1.7
Claude Code v2.1.7 Release Notes
Claude Code v2.1.7 brings enhanced MCP tool management, improved Windows compatibility, and better user experience with new customization options.
- v2.1.6
Claude Code v2.1.6: Search, Stats & Major Bug Fixes
Claude Code v2.1.6 introduces powerful search functionality for settings, date range filtering for stats, improved context window management, and fixes critical security vulnerabilities.
- v2.1.5
Claude Code v2.1.5 Release Notes
Claude Code v2.1.5 adds CLAUDE_CODE_TMPDIR environment variable for custom temp directory configuration.
- v2.1.4
Claude Code v2.1.4 Release Notes
Claude Code v2.1.4 introduces new environment variable controls for background tasks and fixes OAuth token refresh issues.