Bedrock default shifts to Sonnet 4.5; four deprecated .claude.json fields are now removed—any configs using allowedTools or ignorePatterns will silently break.
Changes
5
Total Changes (vs Average)
0.3×
Version Type
Patch
Release Focus
Mixed
Days Since Prior Release
0
Release # This Month
#2 of 20
Bug Fix Ratio
0%
Post-Release Edits
—
Change Category
Ecosystem Impact
AWS Bedrock and Google Vertex have each appeared in 3 of the last 10 releases, reflecting sustained parallel attention to both cloud providers. Model-version updates have been the consistent driver of Bedrock changes across this stretch.
Key Themes
1Bedrock Model Refresh|1Breaking: Config Deprecation Removal|3IDE, /context, and Terminal Polish
May Help If You've Noticed
Your Bedrock deployment suddenly uses a different model version after updating Claude Code
Settings from .claude.json like allowedTools or ignorePatterns stopped working without any warning
Text or chat responses look wrong or hard to read in a terminal with a light color theme
You couldn't drag files into Claude's chat window in your IDE
The /context command shows incorrect counts when extended thinking is active
Changes in Claude Code v2.0.8
Improved1 change
•Improve message rendering for users with light themes on dark terminals
Changed1 change
•Update Bedrock default Sonnet model to global.anthropic.claude-sonnet-4-5-20250929-v1:0
Removed1 change
•Remove deprecated .claude.json allowedTools, ignorePatterns, env, and todoFeatureEnabled config options (instead, configure these in your settings.json)
Other2 changes
•IDE: Add drag-and-drop support for files and folders in chat