# Claude Code v2.0.65 > Claude Code v2.0.65, released 11 Dec 2025 (2025-12-11). 18 entries read out of the shipped bundle. Unofficial, and not affiliated with Anthropic. Web version: https://changelogs.core-directive.com/v/2.0.65 This release introduces a new `/tag` command for organizing sessions with searchable labels, a unified `TaskOutput` tool replacing previous separate agent/bash output tools, and enhanced MCP tool support with deferred loading capabilities for improved token efficiency. It also adds git worktree detection, remote settings synchronization infrastructure, and headless profiling metrics. ## Changes ### Session Tagging with `/tag` Command **What:** A new command to add searchable tags to your sessions for better organization and retrieval. **How to use:** `/tag bugfix # Add tag to current session /tag bugfix # Run again to remove (toggle behavior) /tag feature-auth # Use descriptive names` **Details:** - Tags appear after the branch name in `/resume` list - Tags are searchable with `/` search functionality - Running the same tag command again removes the tag (toggle) - **Evidence**: `c55()` at line 483604, `HG0()` at line 491331, `nh2()` at line 491336 ### Unified TaskOutput Tool **What:** New consolidated tool that retrieves output from any task type (background shells, agents, or remote sessions). **How to use:** `# Model uses TaskOutput instead of separate BashOutput/AgentOutputTool TaskOutput --task_id --block true --timeout 30000` **Details:** - Replaces the previous `BashOutput` and `AgentOutputTool` with a single unified interface - Works with local bash tasks, local agents, and remote agent sessions - Supports blocking and non-blocking retrieval modes - **Evidence**: `BH = "TaskOutput"` at line 375878, `R31` tool definition at line 454807 ### MCP Tool Deferred Loading **What:** MCP tools can now be loaded on-demand to reduce initial token overhead. **How to use:** - Configure in settings; MCP tools marked for deferred loading won't count against initial token budget - Tools load when needed during conversation **Details:** - New "MCP tools (deferred)" category shows in `/context` breakdown - Deferred tools excluded from main token total until used - **Evidence**: `deferredToolTokens: H` at line 380202, `defer_loading` property in `fQ1()` at line 457318 ### Git Worktree Detection **What:** Claude Code now detects and works with git worktrees for multi-branch development workflows. **Details:** - Automatically detects worktree configurations - Reports worktree paths to session context - Telemetry event `tengu_worktree_detection` tracks usage - **Evidence**: `worktree` parsing logic starting at line 2461 ### Prompt Suggestions Enhancement **What:** After task completion, Claude now suggests the next logical prompt based on conversation context. **Details:** - Suggestions appear as placeholder text in input field (press Enter to accept) - Filters inappropriate suggestions (too long, gratitude responses, etc.) - Telemetry tracks acceptance rates - **Evidence**: `HN2()` at line 440590, `wN2()` at line 441103, `_B5()` at line 441117 ### Headless Profiling System **What:** Built-in performance profiling for SDK/headless usage with turn-level metrics. **How to enable:** `export CLAUDE_CODE_PROFILE_STARTUP=1 # Enable verbose logging` **Details:** - Tracks key checkpoints: system message generation, query start, first response chunk - Reports metrics via telemetry for 5% of sessions - **Evidence**: `e30()`, `p1A()`, `A80()` functions at lines 445732-445745 ### File Suggestion Hook **What:** Custom hook support for file path suggestions during `@` mentions. **Details:** - Configure via `fileSuggestion` in hooks settings - Supports command-type hooks that receive query context and return file paths - **Evidence**: `E60()` at line 460683, hook check in `dH2()` at line 424845 ### CLI Plugin Management Commands **What:** Full CLI support for plugin enable/disable/update operations. **How to use:** `claude plugin enable --scope user claude plugin disable --scope project claude plugin update --scope local` **Details:** - Enable disabled plugins: `jRA()` at line 451234 - Disable enabled plugins: `PRA()` at line 451237 - Update specific plugins: `SRA()` at line 451240 - Supports scope-aware operations (user/project/local) - **Evidence**: `Ld2()`, `Md2()`, `Od2()`, `Rd2()`, `Td2()` CLI handlers at lines 497930-498062 ### Auto-Update Installed Marketplaces **What:** Background auto-update for installed marketplace plugins. **Details:** - Runs automatically on startup (non-headless mode only) - Updates each marketplace sequentially with error isolation - **Evidence**: `_j2()` at line 450763 ### Teleport URLs **What:** Infrastructure for generating session teleport links to claude.ai. **Details:** - Generates URLs in format: `https://claude.ai/code/{sessionId}` - CLI command format: `claude --teleport {sessionId}` - **Evidence**: `TtB()` at line 369714, `_tB()` at line 369717 ### Task Status Attachments Background tasks now include delta summaries in attachments for smoother conversation flow. New function `o78()` at line 358386 handles task status attachment generation with status, description, and delta summary fields. ### Remote Settings Infrastructure Added framework for enterprise remote settings synchronization including authentication, validation, and local caching. New file `remote-settings.json` at line 3494 and related authentication handling. ### LSP Tool Position Parameters LSP operations now use 1-based line/character positions (matching editor display) instead of 0-indexed. This affects `goToDefinition`, `findReferences`, `hover`, `documentSymbol`, and `workspaceSymbol` operations. Evidence: Schema definitions at line 455590. ### Settings Source Display New function `zy2()` at line 462818 provides detailed information about active settings sources, distinguishing between remote and local enterprise managed settings. ### Plugin Installation Tracking V2 Plugin tracking migrated to v2 format with per-installation metadata including scope, project path, version, and timestamps. Functions `Q31()` at line 447959 and `IM2()` at line 447977 handle the new format. ### Session Search Improvements Sessions can now be searched by tag in addition to content. Function `$h()` at line 491493 supports multi-path session loading with tag filtering. ### Auto-Compact Environment Control New `DISABLE_COMPACT` environment variable allows disabling auto-compact behavior. Function `wAA()` at line 4001 checks this setting. ### MCP Tool Search Integration New MCP tool discovery tool schema (`XwZ`, `WwZ`) at line 456454 enables dynamic MCP tool querying with configurable result limits.