Release notes
Anthropic's official release notes. Claude apps: the website, desktop and phone apps. Claude Code: Claude's coding assistant. Claude API: what developers use to build Claude into their own products.
Claude Code·
Expand Remote Control to more users.
Claude Code·Feb 25, 2026
VS Code: Fixed another cause of "command 'claude-vscode.editor.openLast' not found" crashes.
Fixed BashTool failing on Windows with EINVAL error.
Fixed a UI flicker where user input would briefly disappear after submission before the message rendered. Fixed bulk agent kill (ctrl+f) to send a single aggregate notification instead of one per agent, and to properly clear the command queue.
Claude Code·Feb 24, 2026
VS Code: Fixed extension crash on Windows ("command 'claude-vscode.editor.openLast' not found").
Added claude remote-control subcommand for external builds, enabling local environment serving for all users. Added support for custom npm registries and specific version pinning when installing plugins from npm sources.
Claude Code·Feb 20, 2026
Added support for startupTimeout configuration for LSP servers. Added WorktreeCreate and WorktreeRemove hook events, enabling custom VCS setup and teardown when agent worktree isolation creates or removes worktrees.
Claude Code·Feb 19, 2026
Added ConfigChange hook event that fires when configuration files change during a session, enabling enterprise security auditing and optional blocking of settings changes.
Claude Code·Feb 18, 2026
Added last_assistant_message field to Stop and SubagentStop hook inputs, providing the final assistant response text so hooks can access it without parsing transcript files. Added chat:newline keybinding action for configurable multi-line input (anthropics/claude-code#26075).
Claude Code·Feb 17, 2026
Added support for Claude Sonnet 4.6. Added support for reading enabledPlugins and extraKnownMarketplaces from --add-dir directories.
Claude Code·Feb 16, 2026
Fixed auth refresh errors.
Claude Code·Feb 13, 2026
Fixed /resume showing interrupt messages as session titles. Fixed Opus 4.6 launch announcement showing for Bedrock/Vertex/Foundry users.
Added claude auth login, claude auth status, and claude auth logout CLI subcommands. Added Windows ARM64 (win32-arm64) native binary support.
Claude Code·Feb 10, 2026
Improved terminal rendering performance. Fixed fatal errors being swallowed instead of displayed.
Fixed VS Code terminal scroll-to-top regression introduced in 2.1.37. Fixed Tab key queueing slash commands instead of autocompleting.
Claude Code·Feb 7, 2026
Fixed an issue where /fast was not immediately available after enabling /extra-usage.
Fast mode is now available for Opus 4.6. Learn more at https://code.claude.com/docs/en/fast-mode.
Claude Code·Feb 6, 2026
Fixed a crash when agent teams setting changed between renders. Fixed a bug where commands excluded from sandboxing (via sandbox.excludedCommands or dangerouslyDisableSandbox) could bypass the Bash ask permission rule when autoAllowBashIfSandboxed was enabled.
Added TeammateIdle and TaskCompleted hook events for multi-agent workflows. Added support for restricting which sub-agents can be spawned via Task(agent_type) syntax in agent "tools" frontmatter.
Claude Code·Feb 5, 2026
Added research preview agent teams feature for multi-agent collaboration (token-intensive feature, requires setting CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1). Added "Summarize from here" to the message selector, allowing partial conversation summarization.
Claude Code·Feb 4, 2026
Added session resume hint on exit, showing how to continue your conversation later. Added support for full-width (zenkaku) space input from Japanese IME in checkbox selection.
Claude Code·Feb 3, 2026
Added pages parameter to the Read tool for PDFs, allowing specific page ranges to be read (e.g., pages: "1-5"). Large PDFs (>10 pages) now return a lightweight reference when @ mentioned instead of being inlined into context. Added pre-configured OAuth client credentials for MCP servers that don't support Dynamic Client Registration (e.g., Slack). Use --client-id and --client-secret with claude mcp add.
Claude Code·Jan 31, 2026
Fixed startup performance issues when resuming sessions that have saved_hook_context.
Claude Code·Jan 30, 2026
Added tool call failures and denials to debug logs. Added --from-pr flag to resume sessions linked to a specific GitHub PR number or URL.
Claude Code·Jan 29, 2026
Fixed beta header validation error for gateway users on Bedrock and Vertex, ensuring CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 avoids the error.
Added customizable spinner verbs setting (spinnerVerbs).
Claude Code·Jan 28, 2026
Fixed structured outputs for non-interactive (-p) mode.
Added support for full-width (zenkaku) number input from Japanese IME in option selection prompts. [VSCode] Added automatic Python virtual environment activation, ensuring python and pip commands use the correct interpreter (configurable via claudeCode.usePythonEnvironment setting).
Claude Code·Jan 27, 2026
Added arrow key history navigation in vim normal mode when cursor cannot move further. Added external editor shortcut (Ctrl+G) to the help menu for better discoverability.
Claude Code·Jan 23, 2026
Added env var CLAUDE_CODE_ENABLE_TASKS, set to false to keep the old system temporarily. Added shorthand $0, $1, etc. for accessing individual arguments in custom commands.