chore: release main by stainless-app[bot] · Pull Request #90 · anthropics/anthropic-sdk-csharp

stainless-app · 2026-01-09T16:30:21Z

✨ Stainless prepared a new release

Anthropic: 12.2.0

12.2.0 (2026-01-14)

Full Changelog: Anthropic-v12.1.0...Anthropic-v12.2.0

Features

client: add helper functions for raw messages (c38e0f1)
client: add more ToString implementations (ebebe2a)
client: add strong naming (4feeae5)
client: support WithRawResponse in Foundry client (#92) (39ffeb2)
client: support accessing raw responses (81ad4fe)

Bug Fixes

client: add missing serializer options (f08055c)
client: copy path params in params copy constructors (23fd7c6)
client: ensure deep immutability for deep array/dict structures (d9385f7)
client: freeze models on property access (4aec2c8)
client: throw api enum errors as invalid data exception (6028977)
client: union switch method type checks (e0c4fcb)
client: use readonly type for param (b00209c)
internal: accidental custom code (2025fbb)
internal: build (74ac455)
internal: remove redundant line (ed85010)
internal: remove roundtrip tests for multipart params (1e3f6e1)
use Properties initializer for InputSchema in IChatClient extensions (#83) (b4d9faf)

Performance Improvements

client: add json deserialization caching (d9385f7)

Chores

client: consistently use serializer options (d02b2fa)
client: mark claude-3-5-haiku as deprecated (b5f147c)
client: use mutable collections for union deserialization (bd75f30)
internal: codegen related update (8565b06)
internal: codegen related update (df7fd3c)
internal: format (3af90a7)
internal: use better namespace aliases (16b810a)
readme: remove beta warning now that we're in ga (613b5ce)

Refactors

client: add JsonDictionary identity methods (2c26557)
client: make unions implement ModelBase (8500f1e)
internal: JsonElement constant construction (bb19b2b)
internal: unnest constant converter (65a1eec)

Foundry: 0.4.0

0.4.0 (2026-01-14)

Full Changelog: Foundry-v0.3.0...Foundry-v0.4.0

Features

client: support WithRawResponse in Foundry client (#92) (39ffeb2)

Chores

internal: codegen related update (8565b06)
internal: codegen related update (df7fd3c)
readme: remove beta warning now that we're in ga (613b5ce)

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…ions (#83) * chore(ci): Add Claude Code GitHub Workflow (#273) * "Claude PR Assistant workflow" * "Claude Code Review workflow" * fix: use Properties initializer for InputSchema in IChatClient extensions The InputSchema constructor was being passed properties as rawData, which caused them to be serialized at the top level of the JSON object instead of under a "properties" key. This resulted in invalid JSON Schema that failed Anthropic API validation with error: "tools.0.custom.input_schema: JSON schema is invalid" The fix uses property initializer syntax to correctly populate the Properties property, ensuring the schema is valid JSON Schema draft 2020-12. Also updates tests to expect the corrected schema format. Fixes #82 * Remove added workflows --------- Co-authored-by: dtmeadows <dmeadows@stainless.com>

fix(client): ensure deep immutability for deep array/dict structures

* Fix rebase merge conflicts * Rename factory field for rawResponse enabled client * Fix Linter

TomerAberbach · 2026-01-13T22:07:57Z

@stephentoub there was a bug for a while that was causing tests not to run on CI; this is fixed on next, but it seems that some of the custom code tests are failing:

https://github.com/anthropics/anthropic-sdk-csharp/actions/runs/20974065747/job/60284513276?pr=90

Just wanted to make sure this is on your radar!

stephentoub · 2026-01-14T16:29:37Z

Just wanted to make sure this is on your radar!

I wasn't, thanks. It looks like #83 didn't fix all the necessary tests that were impacted.

I just went to address them, but the next branch isn't building at all for me. Is that expected?

sd-st · 2026-01-14T16:32:02Z

Hmm, it builds fine for me (with one warning in an example, which probably should be fixed). What error are you running into?

stephentoub · 2026-01-14T16:34:45Z

Restore complete (2.2s)
  Anthropic netstandard2.0 failed with 86 error(s) (1.8s)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\ErrorObject.cs(106,24): error CS0246: The type or namespace name 'ApiErrorObject' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\ErrorObject.cs(285,52): error CS0246: The type or namespace name 'ApiErrorObject' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\ErrorObject.cs(347,16): error CS0246: The type or namespace name 'ApiErrorObject' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\ErrorObject.cs(423,14): error CS0246: The type or namespace name 'ApiErrorObject' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\ErrorObject.cs(458,49): error CS0246: The type or namespace name 'ApiErrorObject' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\Beta\BetaError.cs(106,22): error CS0246: The type or namespace name 'BetaApiError' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\Beta\BetaError.cs(285,52): error CS0246: The type or namespace name 'BetaApiError' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\Beta\BetaError.cs(347,16): error CS0246: The type or namespace name 'BetaApiError' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\Beta\BetaError.cs(423,14): error CS0246: The type or namespace name 'BetaApiError' could not be found (are you missing a using directive or an assembly reference?)
    D:\repos\anthropic-sdk-csharp\src\Anthropic\Models\Beta\BetaError.cs(458,47): error CS0246: The type or namespace name 'BetaApiError' could not be found (are you missing a using directive or an assembly reference?)
...

stephentoub · 2026-01-14T16:45:50Z

@sd-st, for example, the next branch doesn't appear to contain a definition for BetaAPIError:
https://github.com/anthropics/anthropic-sdk-csharp/blob/next/src/Anthropic/Models/Beta/BetaAPIError.cs
even though it's used in the next branch:

anthropic-sdk-csharp/src/Anthropic/Models/Beta/BetaError.cs

Line 106 in 4feeae5

public BetaError(BetaApiError value, JsonElement? element = null)

TomerAberbach · 2026-01-14T17:59:18Z

Your second link shows BetaApiError, which does exist (it was renamed from BetaAPIError to BetaApiError per C# naming conventions)

stephentoub · 2026-01-14T18:20:59Z

It does now. History keeps getting rewritten in next so I can't figure out when it was fixed, but I've just pulled it down again (vs having pulled it down a couple of hours ago) and it now builds.

stainless-app · 2026-01-14T20:29:34Z

🤖 Release is at https://github.com/anthropics/anthropic-sdk-csharp/releases/tag/Anthropic-v12.2.0 🌻

stainless-app · 2026-01-14T20:29:40Z

🤖 Release is at https://github.com/anthropics/anthropic-sdk-csharp/releases/tag/Foundry-v0.4.0 🌻

stainless-app Bot requested a review from a team as a code owner January 9, 2026 16:30

stainless-app Bot added the autorelease: pending label Jan 9, 2026

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch 3 times, most recently from 6aac326 to 4f7601b Compare January 12, 2026 05:14

stainless-app Bot added 3 commits January 12, 2026 17:07

chore(internal): codegen related update

df7fd3c

fix(internal): don't try to push symbols to nuget as separate package

4bc6be5

fix(internal): remove redundant line

ed85010

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 4f7601b to 960b9db Compare January 12, 2026 17:10

stainless-app Bot added 4 commits January 12, 2026 18:57

feat(client): support accessing raw responses

81ad4fe

docs: add raw responses to readme

22c1e1e

feat(client): add more ToString implementations

ebebe2a

refactor(client): make unions implement ModelBase

8500f1e

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 960b9db to 0f18d09 Compare January 13, 2026 05:11

stainless-app Bot added 10 commits January 13, 2026 21:24

fix(client): union switch method type checks

e0c4fcb

fix(internal): remove roundtrip tests for multipart params

1e3f6e1

fix(client): copy path params in params copy constructors

23fd7c6

chore(internal): use better namespace aliases

16b810a

perf(client): add json deserialization caching

d9385f7

fix(client): ensure deep immutability for deep array/dict structures

refactor(client): add JsonDictionary identity methods

2c26557

chore(client): mark claude-3-5-haiku as deprecated

b5f147c

fix(client): freeze models on property access

4aec2c8

refactor(internal): JsonElement constant construction

bb19b2b

chore(client): refactor union instantiation

1a7334d

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch 2 times, most recently from 9e34cb1 to e7ff2bd Compare January 13, 2026 21:30

stainless-app Bot added 3 commits January 13, 2026 21:33

chore(client): consistently use serializer options

d02b2fa

chore(client): use mutable collections for union deserialization

bd75f30

fix(client): throw api enum errors as invalid data exception

6028977

chore(readme): remove beta warning now that we're in ga

613b5ce

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 27c10a8 to 4f8fed0 Compare January 13, 2026 21:37

fix(internal): accidental custom code

2025fbb

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 4f8fed0 to 4275f00 Compare January 13, 2026 21:44

feat(client): support WithRawResponse in Foundry client (#92)

39ffeb2

* Fix rebase merge conflicts * Rename factory field for rawResponse enabled client * Fix Linter

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 4275f00 to 1d12cce Compare January 13, 2026 21:46

fix(internal): build

74ac455

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 1d12cce to 9a4c9ad Compare January 13, 2026 21:48

chore(internal): format

3af90a7

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 9a4c9ad to 098bd2b Compare January 13, 2026 21:59

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 098bd2b to 04b1097 Compare January 14, 2026 05:10

chore(internal): codegen related update

8565b06

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 04b1097 to 9fa0819 Compare January 14, 2026 16:40

feat(client): add strong naming

4feeae5

stephentoub and others added 2 commits January 14, 2026 14:27

Fix failing tests due to properties change (#95)

2212821

chore: release main

4d7249d

stainless-app Bot force-pushed the release-please--branches--main--changes--next branch from 9fa0819 to 4d7249d Compare January 14, 2026 19:27

felixfbecker approved these changes Jan 14, 2026

View reviewed changes

felixfbecker merged commit f325493 into main Jan 14, 2026
7 of 8 checks passed

stainless-app Bot added autorelease: tagged and removed autorelease: pending labels Jan 14, 2026

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chore: release main#90

chore: release main#90
felixfbecker merged 34 commits intomainfrom
release-please--branches--main--changes--next

stainless-app Bot commented Jan 9, 2026 •

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✨ Stainless prepared a new release

12.2.0 (2026-01-14)

Features

Bug Fixes

Performance Improvements

Chores

Refactors

0.4.0 (2026-01-14)

Features

Chores

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TomerAberbach commented Jan 13, 2026

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stephentoub commented Jan 14, 2026

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sd-st commented Jan 14, 2026

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stainless-app Bot commented Jan 9, 2026 •

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