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v0.2.66 Claude Code Release Notes

Apr 17, 2025
Claude's Analysisby Sonnet 4.6
Full Analysis

Print mode gains --output-format=stream-json for real-time scripting pipelines; paste no longer accidentally triggers memory or bash mode.

Changes
2
Total Changes (vs Average)
0.1×
Version Type
Patch
Release Focus
Mixed
Days Since Prior Release
0
Release # This Month
#21 of 27
Bug Fix Ratio
50%
Post-Release Edits
+1−1
Change Category
MCP featured in 5 of the last 10 releases — a sustained extensibility push across recent versions. This release steps back from that pattern entirely, delivering only general-purpose CLI improvements.
Key Themes
1Print Mode Streaming Output|1Paste-Triggered Mode Switching Fixed
May Help If You've Noticed
Pasting text into the prompt suddenly activates memory mode or bash mode without you intending it
You run Claude Code in scripts and need to process output as it streams rather than waiting for the full response

Changes in Claude Code v0.2.66

Fixed1 change

  • •Fixed issue where pasting could trigger memory or bash mode unexpectedly

Other1 change

  • •Print mode (-p) now supports streaming output via --output-format=stream-json

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