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Reading a new release v2.1.251 Analysing changes · 2/5 Writing the entries · 2/4 steps 470 findings $18.91 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.0.34 5 Nov 2025

MCP Bash Permission Handling

What: Improved permission checking for MCP tools invoked via bash commands.

Details:

New command parser Re() detects mcp-cli call syntax in bash commands
Permission check function Bg8() validates MCP tool access before execution
Prevents bash command splitting from bypassing MCP permissions
Returns appropriate deny/ask/allow behavior with suggestions
Evidence: Parser Re() at line 3935, permission check Bg8() at line 212208 in pretty-v2.0.34.js

See this entry in the whole of v2.0.34 →