Claude Code v2.1.195: Hook Matcher Fix for MCP Servers with Hyphens, Fullscreen Mouse Controls
Anthropic
Anthropic released Claude Code v2.1.195 on June 26. It fixes hook matchers with hyphenated identifiers (e.g. mcp__brave-search) to use exact-match instead of substring-match, a bug that affected all MCP server identifiers containing hyphens. Also adds CLAUDE_CODE_DISABLE_MOUSE_CLICKS to disable mouse click/drag/hover in fullscreen while retaining scroll, and fixes voice dictation on macOS for long sessions and languages without word spaces (Japanese, Chinese, Thai).
Why it matters
The hook matcher bug affected a large fraction of real-world MCP setups, as hyphenated server names are the dominant convention. The fix unblocks production pipelines that had to work around incorrect hook routing.
Importance: 2/5
Incremental patch with notable hook matcher bug fix for MCP hyphenated identifiers