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Tag: API breaking changes

Abstract visualization of AI model neural network nodes and Python API code snippets in blue and white, representing Claude Opus 5.5 API migration

AI & Development

Claude Opus 5.5: 4 Breaking Changes Hitting Production

Claude Opus 5.5 is 40% cheaper than Opus 5 with better benchmarks, but four API ...

October 10, 2026

Claude Opus 5.5 neural network nodes with version number highlighted in blue

News

Claude Opus 5.5 Is the New Default — Here Is What Changes

Anthropic’s Claude Opus 5.5 is now the default in Claude Code. It’s 40% cheaper per ...

September 28, 2026