v1.66.0

1.66.0 (2026-08-19)

Full Changelog: v1.65.0...v1.66.0

Features

• api: managed agents web search config and self hosted sandbox memory (694b03a)

v1.65.0

1.65.0 (2026-08-19)

Full Changelog: v1.64.0...v1.65.0

Features

• api: Files and Skills APIs are now GA; add computer use and browser use toolsets (e7be7af)

v1.64.0

1.64.0 (2026-08-18)

Full Changelog: v1.63.1...v1.64.0

Features

• api: additions to files and memory stores (5c105da)
• api: updates to skill, files, and user profiles (a0061d6)

Bug Fixes

• api: remove unsupported mid_conv_system content block (bced0f9)
• session-runner: retry tool-result sends for at least the lease TTL (#299) (ebc9533)
• tool-runner: forward the server-assigned container on follow-up requests (#277) (860620c)
• toolrunner: don't yield the final message twice from All() (#314) (1e418f0)

Chores

• internal: remove leftover prism references (a1d9eab)

v1.63.1

1.63.1 (2026-08-13)

Full Changelog: v1.63.0...v1.63.1

Bug Fixes

• auth: pin token exchange to the configured base URL and skip auth for other origins (#258) (6e4141c)
• client: apply stop_details from every message_delta when accumulating (#253) (c197a64)
• client: properly render maxLength and maxItems in generated schemas (84a57f5)
• sessions: post "(no output)" for empty text tool results instead of an empty text block (#236) (a588842)

Chores

• ci: run breaking-change detection as a ci.yml job on every push (29aebdb)

Documentation

• api: clarify that user profile name is optional for resold profiles (1039f95)

v1.63.0

1.63.0 (2026-08-10)

Full Changelog: v1.62.0...v1.63.0

Features

• api: add output_behavior to dream creation (create a new memory store or update the input store in place) (ba999d5)

Bug Fixes

• client: add models (a662a31)
• symlink-loop paths, special archive members, and 409 retry in the agent toolset and environment worker (#226) (82aa034)
• vertex: preserve a user-supplied HTTP client by wrapping its transport with Google auth (#242) (8e85a8e)

v1.62.0

1.62.0 (2026-08-06)

Full Changelog: v1.61.0...v1.62.0

Features

• api: add mid-conversation-tool-changes-2026-07-01 beta (f53c3d3)
• api: add support for session budgets, advisor tool, pinned inference location and skills auto-loading from GitHub (89c04c2)

Bug Fixes

• client: preserve wire-faithful JSON in accumulated streaming messages (#197) (9a01ac0)
• jsonl: prevent silent truncation of large results, and don't panic on close (#203) (77dd33d)
• tools: name tool refusals and a dead shell so they can be matched (#213) (da87d4d)

Chores

• api: remove retired Claude Opus 4.1 models (85fdf3b)
• docs: small updates to descriptions (487e6ea)
• docs: updates to a few documentation strings (03dc511)

v1.61.0

1.61.0 (2026-07-24)

Full Changelog: v1.60.0...v1.61.0

Features

• api: add claude-opus-5 model (bb7dc83)
• api: add tool addition/removal blocks and tool_change events (bb7dc83)
• api: expand client-side fallback credit token types and add server-side fallbacks default option (bb7dc83)

v1.60.0

1.60.0 (2026-07-23)

Full Changelog: v1.59.0...v1.60.0

Features

• api: add new stop reason 'model_context_window_exceeded' (94caa5d)

Bug Fixes

• apijson: correct unmarshaling for param types (#73) (661be2e)
• client: escape HTML in RawJSON overrides of nested properties (3b163e2)
• refer to the CLI as ant in auth error messages (#194) (d6508c7)

v1.59.0

1.59.0 (2026-07-22)

Full Changelog: v1.58.1...v1.59.0

Features

• api: add support for Managed Agents model effort, initial session events, and threads delta streaming (abca19a)

v1.58.1

1.58.1 (2026-07-21)

Full Changelog: v1.58.0...v1.58.1

Bug Fixes

• client: copy all citation fields in ToParam conversions (#191) (26ac1f9)
• vertex: default to the cloud-platform scope in WithGoogleAuth (#190) (7931e70)

Chores

• api: add support for new refusal category (f77159c)
• docs: small updates (576dc36)
• docs: small updates (f618082)
• internal: codegen related update (03fee5d)