Claude docs changes for February 13th, 2026 [diff]
Executive Summary
- Claude Code 2.1.41 adds new authentication CLI commands (
claude auth login/status/logout) and Windows ARM64 support - Features overview page reorganized into clearer categories: Model capabilities, Tools, Tool infrastructure, Context management, and Files & assets
- Attio CRM integration added as new remote MCP server for both Claude Code and API
- Important streaming behavior change for Claude Opus 4.6 requiring explicit continuation prompts after interruptions
New Claude Code versions
2.1.41
New features
- Added
claude auth login,claude auth status, andclaude auth logoutCLI subcommands for authentication management - Added Windows ARM64 (win32-arm64) native binary support
Existing feature improvements
- Improved
/renameto auto-generate session name from conversation context when called without arguments - Improved narrow terminal layout for prompt footer
Major bug fixes
- Fixed AWS auth refresh hanging indefinitely by adding a 3-minute timeout
- Fixed file resolution failing for @-mentions with anchor fragments (e.g.,
@README.md#installation) - Fixed FileReadTool blocking the process on FIFOs,
/dev/stdin, and large files - Fixed background task notifications not being delivered in streaming Agent SDK mode
- Fixed cursor jumping to end on each keystroke in classifier rule input
- Fixed markdown link display text being dropped for raw URL
- Fixed auto-compact failure error notifications being shown to users
- Fixed permission wait time being included in subagent elapsed time display
- Fixed proactive ticks firing while in plan mode
- Fixed clear stale permission rules when settings change on disk
- Fixed hook blocking errors showing stderr content in UI
Claude Code changes
New Documents
Attio MCP Server [Source]
Added Attio CRM as a new remote MCP server that allows searching, managing, and updating Attio CRM from Claude Code. [line 761]
API changes
New Documents
Attio Remote MCP Server [Source]
Added Attio as a new remote MCP server for managing CRM data from Claude. [line 169]
Changed documents
Overview [Source]
- Reorganized features page with new categorization: "Model capabilities" replaces "Core capabilities", with new sections for "Tools" (split into Server-side and Client-side), "Tool infrastructure", "Context management", and "Files & assets" for better organization. [lines 456-542] [Source]
Streaming [Source]
- Important behavioral change: For Claude Opus 4.6, error recovery from interrupted streams now requires adding a user message that explicitly instructs the model to continue (e.g., "Your previous response was interrupted and ended with [previous_response]. Continue from where you left off."). This differs from Claude 4.5 and earlier models. [lines 605-612] [Source]
Adaptive Thinking [Source]
Context Windows [Source]
- Changed code block formatting from
inline-blocktoshikifor consistency. [lines 386-396] [Source]