Unverified50% confidenceFactExact time
Upgrading to Claude Sonnet 5.5 is accompanied by five API breaking changes involving adjustments to request parameters, response structures, and default behaviors.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/28/2026
First Seen
Valid until: 12/27/2026
Sources
Related Entities
Related Claims
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