0.113.0 (2026-06-29) Full Changelog: v0.112.0...v0.113.0 Features api: add support for 20260318 web fetch and support tools (88dbfb1) Bug Fixes async count_tokens missing output_format/output_config merge block (#162)…
0.112.0 (2026-06-24) Full Changelog: v0.111.0...v0.112.0 Features client: add support for system.message streaming events (2450d59) Bug Fixes memory tool: create parent directories with the correct permissions (#135)…
0.111.0 (2026-06-18) Full Changelog: v0.110.0...v0.111.0 Features helpers: tag refusal-fallback middleware requests with fallback-refusal-middleware (#96) (2f8ac78)
0.110.0 (2026-06-18) Full Changelog: v0.109.2...v0.110.0 Features api: add support for new code_execution_20260120 tool (5e23212) Bug Fixes append x-stainless-helper across header merges instead of clobbering (#105)…
0.109.0 (2026-06-09) Full Changelog: v0.108.0...v0.109.0 Features api: add support for Managed Agents deployments and environment variable credentials (47633bf)
0.108.0 (2026-06-09) Full Changelog: v0.107.1...v0.108.0 Features api: add support for claude-mythos-5 and claude-fable-5, with support for server-side fallbacks on refusal (6b76649) client: adds client-side fallbacks…
0.106.0 (2026-06-05) Full Changelog: v0.105.2...v0.106.0 Features api: mark Claude Opus 4.1 as deprecated (85068cc) Bug Fixes client: make Foundry client copy() and with_options() work (94146ac) transform schema…
0.105.0 (2026-05-28) Full Changelog: v0.104.1...v0.105.0 Features api: Add support for claude-opus-4-8, mid-conversation system blocks, and usage.output_tokens_details (f18b014) support custom file size caps (#1825)…
0.104.0 (2026-05-21) Full Changelog: v0.103.1...v0.104.0 Features api: Add support for thinking-token-count beta for estimated tokens in thinking block deltas when streaming (80d0fdf)
0.102.0 (2026-05-13) Full Changelog: v0.101.0...v0.102.0 Features api: Add BetaManagedAgentsSearchResultBlock types (3681f10) api: Add support for cache diagnostics beta (db51c6c) internal/types: support eagerly…
0.101.0 (2026-05-11) Full Changelog: v0.100.0...v0.101.0 Features aws: Add AWS client for Claude Platform on AWS (1e70e3a) Bug Fixes client: add missing f-string prefix in file type error message (06d109a) Chores…
0.97.0 (2026-04-23) Full Changelog: v0.96.0...v0.97.0 Features api: CMA Memory public beta (fc30ebe) Bug Fixes api: fix errors in api spec (f946de8) api: restore missing features (72212ab) Performance Improvements…
0.95.0 (2026-04-14) Full Changelog: v0.94.1...v0.95.0 Features api: mark Sonnet and Opus 4 as deprecated (0c1e773) bedrock: use auth header for mantle client (#1644) (3b93090)
0.94.0 (2026-04-10) Full Changelog: v0.93.0...v0.94.0 Features vertex eu region (#1658) (b7e157d) Bug Fixes ensure file data are only sent as 1 parameter (837b25b) Documentation improve examples (48089fd) update…
0.90.0 (2026-04-07) Full Changelog: v0.89.0...v0.90.0 Features api: Add support for claude-mythos-preview (fc7ddd8) Bug Fixes client: preserve hardcoded query params when merging with user params (32d35e0)
0.89.0 (2026-04-03) Full Changelog: v0.88.0...v0.89.0 Features vertex: add support for US multi-region endpoint (4e732da) Bug Fixes client: preserve hardcoded query params when merging with user params (e7f4a3c) Chores…
0.87.0 (2026-03-31) Full Changelog: v0.86.0...v0.87.0 Features client: add error type field to APIStatusError (#1587) (dd563c0) internal: implement indices array format for query and form serialization (11a6244) Bug…
0.85.0 (2026-03-16) Full Changelog: v0.84.0...v0.85.0 Features api: chore(config): clean up model enum list (#31) (cce1a5b) api: GA thinking-display-setting (207340c) tests: update mock server (7dc86a4) Bug Fixes…
0.83.0 (2026-02-19) Full Changelog: v0.82.0...v0.83.0 Features api: Add top-level cache control (automatic caching) (a940123) Chores update mock server docs (34ef48c)