v11.0.0

11.0.0 (2025-12-01)

Full Changelog: v10.4.0...v11.0.0

⚠ BREAKING CHANGES

• client: use readonly types for properties

Features

• client: improve csproj (f9e5956)

Bug Fixes

• client: update custom code for readonly (#198) (11cdfa4)
• client: use readonly types for properties (1d78f38)
• internal: running net462 tests on ci (23ca28a)
• release please config for foundry (#52) (45d4b76)

Performance Improvements

• client: use async deserialization in HttpResponse (1ce5af7)

Chores

• client: update namespace imports (9d89414)
• fix ci (#196) (98beb5b)
• internal: clean up diffs vs codegen (ba8adc6)
• internal: fix release please config (2732101)
• internal: set up cron release job (2d1499c)
• internal: suppress diagnostic for .netstandard2.0 (e781b24)
• sync with release-please (6c74dff)
• sync with release-please (c0845ae)

Documentation

• add more comments (d4c4825)
• correct reqs (0c67249)

v10.4.0

10.4.0 (2025-11-25)

Full Changelog: v10.3.0...v10.4.0

Features

• client: support .NET Standard 2.0 (70928cd)

Bug Fixes

• internal: don't format csproj files (76affbf)

Chores

• internal: add logo to nuget package (#181) (f2ca130)
• internal: remove redundant keyword (f33f185)
• remove .keep (#37) (3974964)

Refactors

• internal: remove abstract static methods (3a3dffe)

v10.3.0

10.3.0 (2025-11-24)

Full Changelog: v10.2.1...v10.3.0

Features

• api: adds support for Claude Opus 4.5, Effort, Advance Tool Use Features, Autocompaction, and Computer Use v5 (144a820)

Bug Fixes

• internal: install csharpier during ci lint phase (8898df9)
• internal: minor project fixes (3c344e2)
• internal: remove release notes from foundry readme (afeaa2f)

Chores

• client: change name of underlying properties for models and params (75a2cce)
• formatting (6850900)
• internal: update release please config (980d7fd)

v10.2.1

10.2.1 (2025-11-20)

Full Changelog: v10.2.0...v10.2.1

v10.2.0

10.2.0 (2025-11-20)

Full Changelog: v10.1.2...v10.2.0

Features

• client: additional methods for positional params (8bc6323)

Bug Fixes

• client: return correct type for foundry#WithOptions (#18) (f814a46)
• use correct versions (c78c8db)

Refactors

• client: make unknown variants implicit (eb0e5b6)

v10.1.2

10.1.2 (2025-11-18)

Full Changelog: v10.1.1...v10.1.2

Bug Fixes

• use correct version (a808311)

v10.1.1

10.1.1 (2025-11-18)

Full Changelog: v10.1.0...v10.1.1

v10.1.0

10.1.0 (2025-11-18)

Full Changelog: v10.0.1...v10.1.0

Features

• add Foundry client (8ddea23)

v10.0.1

10.0.1 (2025-11-18)

Full Changelog: v0.2.0...v10.0.1

⚠ BREAKING CHANGES

• client: improve names of some types
• client: use DateTimeOffset instead of DateTime
• client: flatten service namespaces
• client: interpret null as omitted in some properties

Features

• api: add file download method (a03d526)
• api: add support for structured outputs beta (17ea9b3)
• api: rename C# package to Anthropic (2ba3485)
• client: add HttpResponse.ReadAsStream method (677857b)
• client: add cancellation token support (bf4c0e5)
• client: add per-resource headers (1d7658a)
• client: add retries support (3327c9b)
• client: add some implicit operators (bf26da8)
• client: send User-Agent header (e8a0844)
• client: send X-Stainless-Arch header (d66d180)
• client: send X-Stainless-Lang and X-Stainless-OS headers (bcc30e9)
• client: send X-Stainless-Package-Version headers (84bf583)
• client: send X-Stainless-Runtime and X-Stainless-Runtime-Version (94d2581)
• client: send X-Stainless-Timeout header (95ec578)
• client: validate constant values (493a9ef)
• csharp: enable nuget publishing (4a4a1bc)
• docs: add package/version notice (76b74eb)
• docs: Semver warning (55c20ba)
• docs: tweak readme notice (82d5990)
• docs: Update README for nuget (instead of just github) (6bde0b4)
• docs: Update version refs in README (70d787d)

Bug Fixes

• client: interpret null as omitted in some properties (56059db)
• client: use DateTimeOffset instead of DateTime (dbc7f6f)
• use correct header name (f6d0942)

Performance Improvements

• client: optimize header creation (3d37bb5)

Chores

• client: deprecate some symbols (b3446f6)
• internal: add prism log file to gitignore (8588901)
• internal: codegen related update (cf3f5d5)
• internal: delete empty test files (a79abd1)
• internal: improve devcontainer (ab246ff)
• internal: minor improvements to csproj and gitignore (bf94b8c)
• internal: reduce import qualification (137c8b4)
• internal: update release please config (bd94183)

Documentation

• client: document max retries (e1f611f)
• client: separate comment content into paragraphs (1f89605)
• internal: add warning about implementing interface (5476caf)

Refactors

• client: flatten service namespaces (8de3f66)
• client: improve names of some types (2e52d59)
• client: move some defaults out of ClientOptions (d536293)
• client: pass around ClientOptions instead of client (608310d)

v0.2.0

0.2.0 (2025-11-05)

Full Changelog: v0.1.0...v0.2.0

⚠ BREAKING CHANGES

• client: make models immutable

Features

• api: add ability to clear thinking in context management (05d2ce6)
• client: add response validation option (6130f1b)
• client: add support for option modification (e105fba)
• client: make models immutable (f55629c)
• client: support request timeout (7411046)

Chores

• api: mark older sonnet models as deprecated (fc00d2b)
• client: simplify field validations (6130f1b)
• internal: codegen related update (2798e0a)
• internal: extract ClientOptions struct (7e906c8)
• internal: full qualify some references (8a52868)

Documentation

• client: document WithOptions (38352b0)
• client: document response validation (0e9f728)
• client: document timeout option (80d8d7f)
• client: improve snippet formatting (94dc213)