changes.json

{
  "updates": [
    {
      "date": "2026-02-11T02:03:51Z",
      "release": "v2.1.39",
      "description": "Updated the guide with Claude Code v2.1.38 and v2.1.39 releases (February 10, 2026). Added v2.1.39 as latest release with terminal rendering performance improvements, fatal error display fix, process hanging fix, screen boundary character loss fix, and verbose transcript blank lines fix. Added v2.1.38 with VSCode scroll-to-top regression fix, Tab key autocomplete fix, bash permission matching fix, streaming text fix, duplicate sessions fix, and two security improvements (heredoc delimiter parsing and sandbox skills directory protection). Added comprehensive new Fast Mode section to Advanced Features documenting the 2.5x faster Opus 4.6 mode, including toggle methods, pricing comparison table, subscription/extra-usage requirements, use case guidance, and rate limit behavior. Updated the guide's changelog to version 2026.1.13. All code fences verified balanced (478 total) and internal links validated.",
      "sections": "[Changelog (CLI Releases), Advanced Features (Fast Mode NEW), This Guide's Changelog, update-log.md]"
    },
    {
      "date": "2026-02-09T02:03:15Z",
      "release": "v2.1.37",
      "description": "Updated the guide with Claude Code v2.1.36 and v2.1.37 releases from February 7, 2026. Added v2.1.37 as the new latest version with a fix for /fast not being immediately available after enabling /extra-usage. Added v2.1.36 which introduces Fast mode for Opus 4.6. Added two new slash commands (/extra-usage and /fast) to the Usage & Stats section for Max plan subscribers. Updated the guide's changelog to version 2026.1.12 and added corresponding entry to update-log.md. All code fences verified balanced (476 total) and internal links validated.",
      "sections": "[Changelog (CLI Releases), Slash Commands (Usage & Stats), This Guide's Changelog, update-log.md]"
    },
    {
      "date": "2026-02-07T02:07:22Z",
      "release": "v2.1.34",
      "description": "Updated the Claude Code Guide to v2.1.34 (latest release as of February 6, 2026). Major additions include: (1) Claude Opus 4.6 is now available as announced in v2.1.32; (2) Added comprehensive new \"Agent Teams\" section documenting the research preview multi-agent collaboration feature including team architecture, display modes (in-process/tmux/auto), team controls, hooks (TeammateIdle, TaskCompleted), and limitations; (3) Added \"Auto-Memory\" subsection documenting Claude's automatic memory recording feature with memory scope options for agents; (4) Added v2.1.32-v2.1.34 to the CLI changelog with all features and bug fixes; (5) Added --teammate-mode CLI flag for agent team configuration; (6) Added TeammateIdle and TaskCompleted events to the hook events table; (7) Added CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS and CLAUDE_CODE_DISABLE_AUTO_MEMORY environment variables; (8) Updated the navigation Contents table with Agent Teams link; (9) Updated the guide's own changelog to version 2026.1.11. Code fences are balanced (476 total) and internal links validated.",
      "sections": "[Changelog (CLI Releases), Agent Teams (NEW section), Auto-Memory (NEW subsection), Hook Events, CLI Flags Reference, Environment Variables, Contents (navigation table), This Guide's Changelog, update-log.md]"
    },
    {
      "date": "2026-02-05T02:04:33Z",
      "release": "v2.1.31",
      "description": "Updated the guide with Claude Code v2.1.30 and v2.1.31 releases (February 3-4, 2026). Added v2.1.31 as the new latest version with session resume hints, Japanese IME improvements, PDF error handling fixes, sandbox mode bash fixes, plan mode crash fix, LSP compatibility improvements, and better error messages. Added v2.1.30 with the new PDF `pages` parameter for the Read tool, `/debug` slash command for troubleshooting, and `prefersReducedMotion` accessibility setting. Updated the Read tool documentation with PDF page selection examples and limits (100 pages, 20MB). Added the /debug command to the slash commands list. Added prefersReducedMotion to the settings section. Updated the guide's changelog to version 2026.1.10 and the update-log.md with detailed entry. All code fences verified balanced (456) and internal links validated.",
      "sections": "[Changelog (CLI Releases), Core Tools (Read Tool), Slash Commands, New Settings, This Guide's Changelog, update-log.md]"
    },
    {
      "date": "2026-02-01T02:03:18Z",
      "release": "v2.1.29",
      "description": "Updated the README.md with Claude Code v2.1.29 release (January 31, 2026) which includes a fix for startup performance issues when resuming sessions with `saved_hook_context`. Added v2.1.29 as the latest release in the CLI changelog. Updated the guide's own changelog to version 2026.1.9 (February 1, 2026) documenting this addition. Also updated the update-log.md with the corresponding entry. All code fences are balanced (456 total), internal links in the table of contents correctly reference existing sections, and markdown formatting is consistent.",
      "sections": "[Changelog (CLI Releases), This Guide's Changelog]"
    },
    {
      "date": "2026-01-31T02:05:29Z",
      "release": "v2.1.27",
      "description": "Updated the guide with Claude Code v2.1.25 and v2.1.27 releases (January 29-30, 2026). Added v2.1.27 as the latest release with new features including: `--from-pr` flag for resuming sessions linked to GitHub PRs, automatic PR linking when sessions are created via `gh pr create`, permission priority system where content-level `ask` rules override tool-level `allow` rules, VSCode Chrome integration enablement, debug log improvements for tool call failures/denials, and Windows fixes (bash execution with .bashrc files, console window flashing). Added v2.1.25 with beta header validation fix for Bedrock/Vertex gateway users and the `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS` environment variable workaround. Updated the CLI Flags Reference with the new `--from-pr` flag. Added `CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS` to the Advanced environment variables table. Added permission priority documentation to the Permission Model section. Added VSCode Chrome integration feature to the VSCode Plugin Features section. Updated the guide's changelog to version 2026.1.8 and added corresponding entry to update-log.md.",
      "sections": "[Changelog (CLI Releases), CLI Flags Reference, Environment Variables, Permission Model, VSCode Plugin Features, This Guide's Changelog, update-log.md]"
    },
    {
      "date": "2026-01-29T02:05:30Z",
      "release": "v2.1.23",
      "description": "Updated the guide with Claude Code v2.1.21 through v2.1.23 releases (January 28-29, 2026). Added three new version entries to the CLI changelog: v2.1.23 introduces customizable spinner verbs setting (spinnerVerbs), mTLS/proxy connectivity fixes for corporate environments, terminal rendering performance improvements, bash command timeout display, merged PR purple status indicator, and multiple bug fixes; v2.1.22 fixes structured outputs for non-interactive (-p) mode; v2.1.21 adds Japanese IME full-width number support, automatic Python virtual environment activation in VSCode (via claudeCode.usePythonEnvironment setting), improved progress indicators, better file operation tool preferences over bash equivalents, and numerous bug fixes. Added spinnerVerbs setting documentation to the UI preferences section. Added Python virtual environment activation feature to VSCode Plugin Features section. Updated the guide's changelog to version 2026.1.7 and update-log.md with the changes.",
      "sections": "[Changelog, Settings (New Settings), VSCode Plugin Features, This Guide's Changelog]"
    },
    {
      "date": "2026-01-27T02:04:52Z",
      "release": "v2.1.20",
      "description": "Updated the guide with Claude Code v2.1.20 release (January 27, 2026). Added v2.1.20 changelog with 14 entries including arrow key vim navigation, external editor shortcut in help menu, PR review status indicator, CLAUDE.md loading from --add-dir directories, task deletion, dynamic task lists, /copy command general availability, and config backup rotation plus bug fixes. Added two new hook events (PostToolUseFailure and SubagentStart) from official documentation. Added /copy slash command to the commands list. Added CLAUDE_CODE_ADDITIONAL_DIRECTORIES_CLAUDE_MD environment variable. Created new comprehensive Desktop App Features section documenting diff view with inline commenting, git worktrees for parallel sessions, .worktreeinclude file for copying gitignored files, and installation links for macOS/Windows. Updated guide changelog to version 2026.1.6 and update-log.md with the changes.",
      "sections": "[Changelog, Hook Events, Slash Commands, Environment Variables, Desktop App Features (NEW), VSCode Plugin Features, This Guide's Changelog]"
    },
    {
      "date": "2026-01-25T02:05:10Z",
      "release": "v2.1.19",
      "description": "Updated the guide with Claude Code v2.1.19 release information including the new CLAUDE_CODE_ENABLE_TASKS environment variable, shorthand argument syntax ($0, $1) for custom commands, bracket syntax change for indexed arguments ($ARGUMENTS[0]), new CLI flags (--json-schema, --permission-prompt-tool, --setting-sources, --allow-dangerously-skip-permissions, --include-partial-messages, --init, --init-only, --maintenance), VSCode session forking and rewind functionality, expanded monitoring/telemetry environment variables, and multiple bug fixes. The guide changelog was updated to version 2026.1.5 documenting all additions.",
      "sections": "Changelog, CLI Flags Reference, Environment Variables, Using Arguments (Custom Commands), VSCode Plugin Features, This Guide's Changelog"
    },
    {
      "date": "2026-01-23T02:05:45Z",
      "release": "v2.1.17",
      "description": "Updated the README.md with Claude Code releases v2.1.14 through v2.1.17 (January 20-22, 2026). Key additions include: (1) Four new version entries in the changelog documenting features like the new task management system with dependency tracking, npm installation deprecation notice, history-based bash autocomplete, plugin pinning to git commit SHAs, and VSCode native plugin management with OAuth session browsing; (2) Added npm deprecation warning to the installation section; (3) Documented TodoWrite dependency tracking capability; (4) Added new \"Bash Mode Autocomplete\" keyboard shortcut section; (5) Expanded VSCode Plugin Features with native plugin management, remote session browsing, and /usage command; (6) Added Plugin Pinning documentation; (7) Updated the guide's changelog with version 2026.1.4 documenting all changes made.",
      "sections": "[Changelog, Installation, Core Tools (TodoWrite), Keyboard Shortcuts, Plugins, VSCode Plugin Features, This Guide's Changelog]"
    },
    {
      "date": "2026-01-18T10:00:56Z",
      "release": "v2.1.12",
      "description": "Updated the README.md with new information from Claude Code v2.1.10: Added the new `Setup` hook event (triggered via `--init`, `--init-only`, or `--maintenance` CLI flags), the `PermissionRequest` hook event, keyboard shortcut 'c' for copying OAuth URL during login, VSCode plugin features (install count display and trust warnings). Added v2.1.10 to the CLI changelog with all its features and fixes. Updated the Auto-Update Pipeline section to use the new code.claude.com documentation URL. Fixed a table formatting issue in the hook events section. All changes verified from official GitHub releases page.",
      "sections": "[Changelog, Hook Events, Keyboard Shortcuts, Plugins (VSCode Features), This Guide's Changelog, Auto-Update Pipeline]"
    }
  ]
}