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v1.11.0

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@stainless-app stainless-app released this 09 Jun 16:55

1.11.0 (2026-06-09)

Full Changelog: v1.10.0...v1.11.0

Features

  • api: add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal (8302a45)
  • api: manual updates (c5d792d)
  • api: small updates to Managed Agents types (242c693)
  • client: adds client-side fallbacks middleware for API providers that do not support server-side fallbacks (8302a45)

Chores

  • internal: fix artifact url (20689c3)
  • internal: fix branch names (2168a5a)
  • internal: update private repo name (c4f0954)

Documentation

  • add animated terminal demo (7573585)
  • move development docs into CONTRIBUTING.md (ab8aed7)
  • point security reports to Anthropic's HackerOne program (#5) (f5c8f0f)
  • release-branch readiness sweep (model-release Step 5) + coverage-audit refinements (2454db4)
  • replace README demo GIF with webm and poster frame (46d7f93)
  • restore README demo GIF (46e0b71)
  • restructure README to match SDK conventions (e22f218)
  • update product name to Claude Platform (fa89021)
  • use claude-opus-4-8 in examples and lead with the ant name (8ecc617)