Claude Code v2.0.66

What: Save your current prompt input and retrieve it later - useful when you want to temporarily switch to a different task without losing your in-progress prompt. How to use:

# With text in prompt, press Ctrl+S to stash it
# Later, with empty prompt, press Ctrl+S to restore

Details:

• Stash indicator appears when you have a saved prompt
• First-time users see a hint after deleting significant text
• Evidence: $() function at line 21215-21220, stash hint logic at $A.current tracking

What: Team and enterprise users can now request extra usage allocation from their organization admins directly from the CLI. How to use:

/extra-usage

Details:

• Sends a limit_increase request to your organization administrator
• Checks for existing pending requests to prevent duplicates
• Different messaging for enabling vs increasing extra usage
• Evidence: Sz2() at line 425819, xz2() at line 425825, command handler at line 425842+

What: Full Language Server Protocol integration for enhanced code intelligence capabilities. How to use: Configure in .lsp.json files in your project or plugins. Details:

• Automatic server initialization based on file extensions
• Supports textDocument/didOpen, didChange, didSave, didClose notifications
• Configurable extensionToLanguage mapping per server
• Tracks open files to avoid duplicate notifications
• Evidence: $qB() (LSP SERVER MANAGER) at line 285468, config loading at line 14717-14760

What: Support for remote agent task execution and monitoring. Details:

• New remote_agent task type alongside local_agent and local_bash
• Progress monitoring with delta summaries
• Task notifications when remote tasks complete/fail
• Evidence: RemoteAgentTask at line 355509, FJ8() notification function at line 355382

What: Explicit control over Chrome browser usage for authentication flows. How to use:

claude --chrome        # Force Chrome usage
claude --no-chrome     # Prevent Chrome usage

Details:

• Useful when multiple browsers are installed
• Controls authentication and web-based flows
• Evidence: d85() at line 16281-16282

What: More reliable version lock system that tracks process IDs instead of just file modification times. Details:

• Detects if locking process is actually running
• Better stale lock cleanup on startup
• Enhanced error reporting showing which PID holds a lock
• Automatic cleanup of locks from crashed processes
• Feature-flagged via tengu_pid_based_version_locking
• Evidence: ai() at line 397742, K91() at line 397747, V91() cleanup at line 397896

What: Enhanced plugin cache handling with empty directory detection and .lsp.json/.mcp.json file support. Details:

• Removes empty cache directories before re-caching
• Copies .mcp.json and .lsp.json files from plugins
• Better error handling when cache copy fails
• Evidence: UsA() at line 259791, empty dir check at line 20246-20249, config file copy at line 20292-20296

What: Automatic migration of plugin metadata files. Details:

• Renames installed_plugins_v2.json to installed_plugins.json
• Converts V1 format to V2 format automatically
• Cleans up orphaned plugin cache directories
• Evidence: Log message at line 16307, migration function around line 441936

What: Improved prompts and messaging for IDE auto-connect configuration. Details:

• New confirmation dialog: "Do you wish to disable auto-connect to IDE?"
• Better help text: "You can also configure this in /config or with the --ide flag"
• Tip shown when no IDE connected: "You can enable auto-connect to IDE in /config or with the --ide flag"
• Evidence: Dialog at line 16472, tip at line 19792

What: Better handling of glob patterns with directory prefixes. Details:

• Extracts base directory from patterns like src/**/*.ts
• Passes relative pattern to ripgrep for more accurate matching
• Evidence: GRB() at line 489713, EK5() pattern extraction

What: When updates fail due to locks, the error now includes which process ID is blocking. Details:

• Returns structured {success, lockHolderPid} instead of boolean
• Helps debug update failures in multi-instance scenarios
• Evidence: Lock failure handling returning lockHolderPid in update function

What: New /think-back command for viewing your Claude Code year in review animation. Details:

• Installs thinkback plugin automatically
• Supports edit, fix, and regenerate modes
• Companion /thinkback-play command
• Evidence: Command definitions at lines 16872-16995, skill invocation prompts at line 16846-16850

• Added removeMessageByUuid() function for removing specific messages from conversation history
• Evidence: Kn1() at line 286854, removeMessageByUuid() at line 18839

• Added detection for "unknown" server status with Op1() helper
• Evidence: Op1() at line 260849, xHB = "unknown" at line 260852

• Updated semver parsing and comparison utilities
• Added new comparison functions and range handling
• Evidence: New semver exports at line 14508-14554

• Added 50MB (52428800 bytes) constant for file size limits
• Evidence: Tw8 at line 393122