v1.12.2

1.12.2 (2026-06-24)

Full Changelog: v1.12.1...v1.12.2

Chores

• api: add support for sending User Profile ID in request headers (2a9ec20)
• internal: codegen related update (70616f5)

Documentation

• model-release: model-ID-launch checklist (62562f3)

v1.12.1

1.12.1 (2026-06-10)

Full Changelog: v1.12.0...v1.12.1

Bug Fixes

• api: add frontier_llm refusal category (#10) (7144269)

v1.12.0

1.12.0 (2026-06-09)

Full Changelog: v1.11.0...v1.12.0

Features

• api: add support for Managed Agents deployments and environment variable credentials (b36672a)
• api: manual updates (d94edec)

v1.11.0

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)

v1.10.0

1.10.0 (2026-05-28)

Full Changelog: v1.9.3...v1.10.0

Features

• api: Add support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details (1f9b079)

Documentation

• replace literal newlines (eddcf54)

v1.9.3

1.9.3 (2026-05-26)

Full Changelog: v1.9.2...v1.9.3

Bug Fixes

• stop clearing org/workspace from profile config on logout (#406) (a9999c8)

v1.9.2

1.9.2 (2026-05-26)

Full Changelog: v1.9.1...v1.9.2

Bug Fixes

• clear organization/workspace on logout and honor --organization-id on login (1562d45)
• treat text/plan with format: binary as raw upload (e7f5c54)

v1.9.1

1.9.1 (2026-05-19)

Full Changelog: v1.9.0...v1.9.1

Bug Fixes

• runner: skip tool calls the worker does not own (#404) (2fbfd7e)

v1.9.0

1.9.0 (2026-05-19)

Full Changelog: v1.8.0...v1.9.0

Features

• client: Add support for self-hosted sandboxes in CMA with sandbox helpers (cbfbd92)

v1.8.0

1.8.0 (2026-05-13)

Full Changelog: v1.7.1...v1.8.0

Features

• api: Add support for cache diagnostics beta (14f198e)

Chores

• internal: codegen related update (cd25682)