[Bug] Claude Code attempts to downgrade to older model version when adding features

Status Closed — not planned
Reported on v2.1.170
Maintainer reply None cached
Activity 2 comments · opened Jun 10, 2026 · closed Jun 17, 2026

Bug Description
When i try add new feature Fable 5 trying to downgrade to opus 4.8 very back. I just writing normal coding applications

Environment Info

  • Platform: darwin
  • Terminal: Apple_Terminal
  • Version: 2.1.170
  • Feedback ID: f6ff843a-23cc-4ba5-9541-9436780ba421

Errors

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