v1.0.41 Claude Code Release Notes

Jul 3, 2025

Claude's Analysisby Sonnet 4.6

Hooks: Stop/SubagentStop split for multi-agent control, per-command timeouts, and hook_event_name in input. MCP duplicate tool display also fixed.

Changes

Total Changes (vs Average)

0.4×

Version Type

Patch

Release Focus

Mixed

Days Since Prior Release

Release # This Month

#1 of 23

Bug Fix Ratio

20%

Post-Release Edits

—

Change Category

Ecosystem Impact

Key Themes

3Hooks subsystem maturation|2Tool event transparency

May Help If You've Noticed

Your hook logic treats agent stop and subagent stop identically, causing incorrect behavior in multi-agent workflows.

Added1 change

•New tool parameters JSON for Bash tool in tool_decision event

Fixed1 change

•Fixed a bug where MCP tools would display twice in tool list

Other3 changes

•Hooks: Split Stop hook triggering into Stop and SubagentStop
•Hooks: Enabled optional timeout configuration for each command
•Hooks: Added "hook_event_name" to hook input

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v1.0.41 Claude Code Release Notes

Jul 3, 2025

Claude's Analysisby Sonnet 4.6

Full Analysis

Hooks: Stop/SubagentStop split for multi-agent control, per-command timeouts, and hook_event_name in input. MCP duplicate tool display also fixed.

Changes

Total Changes (vs Average)

0.4×

Version Type

Patch

Release Focus

Mixed

Days Since Prior Release

Release # This Month

#1 of 23

Bug Fix Ratio

20%

Post-Release Edits

—

Change Category

Ecosystem Impact

Key Themes

3Hooks subsystem maturation|2Tool event transparency

May Help If You've Noticed

Your hook logic treats agent stop and subagent stop identically, causing incorrect behavior in multi-agent workflows.

Added1 change

•New tool parameters JSON for Bash tool in tool_decision event

Fixed1 change

•Fixed a bug where MCP tools would display twice in tool list

Other3 changes

•Hooks: Split Stop hook triggering into Stop and SubagentStop
•Hooks: Enabled optional timeout configuration for each command
•Hooks: Added "hook_event_name" to hook input

v1.0.41 Claude Code Release Notes

Changes in Claude Code v1.0.41

Added1 change

Fixed1 change

Other3 changes

v1.0.41 Claude Code Release Notes

Changes in Claude Code v1.0.41

Added1 change

Fixed1 change

Other3 changes