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Back to No.004 AI Product Updates: New Features and ReleasesUpdated 1 hour ago
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Opus 5.5 goes live on Claude Code v2.1.280

Claude Code v2.1.280 now includes the Opus 5.5 model, available in the coding agent after upgrading.

Pankaj Kumar
@pankajkumar_devArchived 2026.09.23Originally posted 2026.09.23
Opus 5.5 goes live on Claude Code v2.1.280
Pankaj Kumar @pankajkumar_devOriginally posted 2026.09.23
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Opus 5.5 is live on Claude Code v2.1.280 Finally.

x.com/pankajkumar_dev/status/2102427857310101665Archived 2026.09.23 10:09
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