AI release notes

Claude Code·Aug 27, 2026

Claude Code 2.1.248

Added --restricted (or CLAUDE_CODE_RESTRICTED=1): removes the built-in tools that run commands or code and WebFetch (unless named in --tools), keeps file tools inside the working directory, refuses bypassPermissions, and ignores user, project and local settings files. Added experimental.cacheTtl ("5m" or "1h") to agent frontmatter: a per-agent prompt cache TTL used when no subagent TTL setting is configured.

Claude API·Aug 27, 2026

In Python SDK 1.2.0, TypeScript SDK 0.122.0, Go SDK 1.68.0, Java SDK 2.59.0, Ruby SDK 1.67.0, and C# SDK…

With this change, client.beta.skills.delete() deletes a Skill together with all of its versions, and the beta Messages type BetaSkill (the container Skill reference) is renamed BetaContainerSkill. Requests that still send the beta headers keep receiving the beta shapes. You can now create personal keys and service account keys in the Claude Console.

Claude Code·Aug 26, 2026

Claude Code 2.1.247

Added the SendFeedback tool: when something goes wrong in a session, Claude can draft a feedback report for you to review and send from /feedback (turn off with the feedbackDrafts setting). Added {id, text, cooldownSessions, priority} entries, tipsFile, and label to spinnerTipsOverride, so organizations can rotate their own tips alongside the built-in ones.

Claude API·Aug 26, 2026

The Compliance API session endpoints are out of beta for Cowork and Claude Code sessions

The Compliance API local session endpoints now also return transcripts of Claude Science sessions (product_surface value claude_science) and Claude for Microsoft 365 sessions in Excel, PowerPoint, Word, and Outlook (product_surface values beginning with office_agents), in beta for Claude Enterprise organizations, with your existing Compliance Access Key and the read:compliance_user_data scope. The Admin API is now available in the ant CLI and the Python, TypeScript, C#, Go, Java, PHP, and Ruby SDKs under client.beta.organization.

Claude Code·Aug 25, 2026

Claude Code 2.1.246

Added a startup warning for Bash allow rules with a wildcard before the subcommand (e.g. Bash(git * main)), since they also match options inserted before the subcommand. Added an Auto mode tab to /permissions for viewing and editing auto mode classifier rules.

Claude Code·Aug 25, 2026

Claude Code 2.1.245

Fixed a crash on startup on Linux distributions that ship glibc 2.44 (for example Arch Linux, CachyOS and Fedora Rawhide).

Claude apps·Aug 25, 2026

Memory in Claude Cowork, editable topics, and a sensitive topics setting

Memory now works across chat and Cowork in the cloud. Everything Claude remembers is listed under Topics in Settings > Memory, where you can edit or delete any item. Topics such as health or beliefs stay out of memory unless you turn on Include sensitive topics in memory. Memory is on by default for Free, Pro, and Max plans and off by default for Team and Enterprise organizations.

Claude Code·Aug 23, 2026

Claude Code 2.1.241

Bug fixes and reliability improvements.

Claude Code·Aug 22, 2026

Claude Code 2.1.240

Bug fixes and reliability improvements.

Claude Code·Aug 21, 2026

Claude Code 2.1.239

Added the one-time fullscreen renderer offer on Bedrock, Vertex, Foundry and other previously excluded setups; new installs there now start in fullscreen. Added /claude-api upgrade to migrate Python projects from anthropic 0.x to 1.x, and updated the skill's Python reference for 1.x (timeouts use anthropic.Timeout, not httpx.Timeout).

Claude Code·Aug 20, 2026

Claude Code 2.1.238

Added a keybindingFlavor setting: set it to "readline" to make Ctrl+W in the prompt delete back to the previous whitespace, as in Bash; the default ("classic") is unchanged. Added claude self-hosted-runner --defer-shutdown-max-min : on SIGTERM, keep serving attached sessions, park what is left after that many minutes, then exit.

Claude Code·Aug 20, 2026

Claude Code 2.1.237

Added a built-in "Concise" output style: Claude leads with results and skips preamble and narration, while doing the work just as thoroughly. Select it under Output style in /config.

Claude API·Aug 20, 2026

We’ve released v1.0 of the Python SDK

The SDK’s HTTP layer moves from httpx to httpx2, a maintained, API-compatible fork: build custom http_client, Timeout, and transport objects from httpx2 (the DefaultHttpxClient helpers are unchanged), and call httpx2.alias_httpx() at startup if you rely on tracing or mocking libraries that patch httpx. v1.0 requires Python 3.10 or later and removes long-deprecated surface, including the legacy Text Completions API, the temperature, top_p, and top_k parameters on Messages methods, and the tool runner’s client-side compaction_control. On the async client,.with_raw_response results now need await response.parse(), and AnthropicBedrock now raises an error when no AWS region is configured instead of defaulting to us-east-1. The computer use and browser use toolsets (computer_toolset_20260801 and browser_toolset_20260801) are now available on Google Cloud for Claude Fable 5, Claude Mythos 5, Claude Opus 5, Claude Sonnet 5, and Claude Opus 4.8.

Claude Code·Aug 19, 2026

Claude Code 2.1.236

Added ANTHROPIC_DEFAULT_MODEL environment variable: sets the model new sessions start on, while a /model pick still overrides it and persists across restarts (unlike ANTHROPIC_MODEL). Added notify_when_idle to cross-session SendMessage: ask another Claude Code session on this machine to send one notice when it next goes idle — opt-in, one-shot, no polling (macOS and Linux).

Claude API·Aug 19, 2026

The computer use tool is out of beta on the Claude API as the computer_toolset_20260801 toolset: no beta…

Earlier beta versions remain available. Upgrading an existing integration changes the request shape and tool handling; see Migrate from computer_20251124. We’ve launched the browser use tool (browser_toolset_20260801), a client toolset for driving a browser that your application hosts. Both toolsets are available for Claude Fable 5, Claude Mythos 5, Claude Opus 5, Claude Sonnet 5, and Claude Opus 4.8 on the Claude API. The Files API is out of beta on the Claude API. Agent Skills and the Skills API (/v1/skills) are out of beta on the Claude API. The Admin API user-management endpoints for Claude Enterprise (claude.ai) organizations (members, invites, groups, and custom roles) are out of beta. You can now restrict which sites a Claude Managed Agents agent’s web_search and web_fetch tools can reach. Claude Managed Agents sessions that run in a self-hosted sandbox can now attach memory stores. The session viewer in the Claude Console has been redesigned with a timeline minimap, a transcript grouped by model request, and an Inspector panel for session details and cost, raw events, per-tool statistics, mounted resources, and per-thread activity.

Claude Code·Aug 18, 2026

Claude Code 2.1.235

Added an optional spellcheck setting that underlines misspelled words in the prompt input as you type, using your installed aspell, hunspell, or ispell.

Claude API·Aug 18, 2026

Workbench is now playground in the Claude Console

Playground supports every Messages API parameter and includes templates that demonstrate API features such as code execution and web search. It shows the full SDK request and the API response for each run, to help you understand the API and build with it. For more, see the Claude Help Center or try it at platform.claude.com/playground.

Claude Code·Aug 17, 2026

Claude Code 2.1.234

Added the optional CLAUDE_CODE_PROJECT_DIR_NAME environment variable: hosts that give each session its own config directory can choose a short name for the per-project transcript directory. Added the selection:clear keybinding action, so a key can be bound to clear an in-app text selection; also works in the agents view.

Claude Code·Aug 14, 2026

Claude Code 2.1.233

Added GitLab merge request URL support to the --worktree flag and the claude agents view (where MRs display as !N). Added an opt-in forward_user_identity apps gateway setting on Anthropic upstreams that sends the signed-in user's identity as headers, so a proxy behind the gateway can attribute spend per user.

Claude Code·Aug 13, 2026

Claude Code 2.1.232

Added /config rows for "Dialog expiry" and "Messages from your other sessions" (cross-session inbound accept/hold/refuse). Added secret redaction for GitLab token families (glrt-, gloas-, glptt-, glagent-, glimt-, glsoat-, glcbt-, glft-, glffct-) and full redaction of routable glpat-/gldt- tokens; the glab CLI config store gets the same sandbox and credential-path protection as gh.

Claude Code·Aug 13, 2026

Claude Code 2.1.231

Fixed MCP OAuth sign-in failing with a redirect URI mismatch for servers that use a pre-registered OAuth client, such as Slack.

Claude Code·Aug 12, 2026

Claude Code 2.1.229

Added server-supplied Claude Code hook support for self-hosted runner sessions, matching managed-environment behavior. Added SSE keepalive pings to gateway streaming responses during long thinking pauses, preventing idle-timeout disconnects on Vertex and Bedrock upstreams.

Claude Code·Aug 11, 2026

Claude Code 2.1.228

Fixed interactive sessions that could stop redrawing entirely, while the process kept running, after a rare internal layout error. Fixed git / Git Bash not being found on Windows when Claude Code is launched from a parent folder of the git installation.

Claude API·Aug 11, 2026

The Compliance API now returns transcripts of Cowork and Claude Code sessions that run on your users’…

GET /v1/compliance/apps/sessions/local lists sessions across your organization, GET /v1/compliance/apps/sessions/local/{session_id} retrieves one session’s metadata, and GET /v1/compliance/apps/sessions/local/{session_id}/messages returns its transcript, all with your existing Compliance Access Key and the read:compliance_user_data scope. We’ve added the anthropic-workspace-id response header to the Claude API.

Claude Code·Aug 10, 2026

Claude Code 2.1.227

Fixed feature flags being evaluated without the user's subscription tier when a session started with an expired login token, which could wrongly prompt Max plan users to enable usage credits for Fable. Fixed every Bash command failing under claude-code-action with allowed_non_write_users on GitHub-hosted runners.

Claude API·Aug 10, 2026

The introductory pricing for Claude Sonnet 5 is now the standard price: the previously scheduled increase to…

Claude Code·Aug 8, 2026

Claude Code 2.1.226

Bug fixes and reliability improvements.

Claude Code·Aug 8, 2026

Claude Code 2.1.225

Added gateway spend-limit support to Claude Code's usage warning; the limit-reached message now names the cap, its reset time, and the operator's message (requires the gateway on 2.1.225). Added a workspace trust prompt to claude agents for untrusted directories, matching the behavior of claude.

Claude Code·Aug 7, 2026

Claude Code 2.1.224

Added self-hosted environments: claude self-hosted-runner turns your own machines or containers into a place Claude Code web, mobile, and desktop sessions can run, on Team and Enterprise plans. Added archive plugin source: install plugins from a zip over HTTPS without git or npm, with optional SHA-256 pinning.

Claude API·Aug 7, 2026

You can now set a budget on a Claude Managed Agents session: a hard cap on the session’s spend, priced at…

A session that reaches its budget pauses with the budget_reached stop reason instead of starting new model requests; changing or removing the budget resumes it. Deployments accept the same budget and apply it to each session they start. You can now give a Claude Managed Agents session an advisor: a model at least as capable as the agent’s own that the session’s primary thread can consult mid-turn for strategic guidance. You can now control where model inference runs for a Claude Managed Agents agent. Claude Managed Agents sessions can now load skills from a GitHub repository.