Upgrading anthropic 0.120 to 0.121
Breaking0.120.2 → 0.121.0Breaking1New2Changed1Other2
BreakingUpgrade verdict
1 breaking change.
In plain terms
- The Claude Opus 4.1 models have been retired and are no longer available, so code using them will fail.
Must act 1 item needs code or config changes
What you must change
Breaking1
Removes retired Claude Opus 4.1 models from the API.