release: 5.2.0

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "5.1.0"
+  ".": "5.2.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 78
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-b79e0eb1ab06f4076c48fa519e2b2ad792a0c483a5d017e43c938ca4c4be6988.yml
-openapi_spec_hash: cb3cc2c1145503e5737a880326857aa4
-config_hash: ff903e824043dc81aca51a0ce21896d6
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-e3e54d99e2a73fd87519270f2685131050d342e86a4e96130247b854deae5c20.yml
+openapi_spec_hash: 897a3fbee24f24d021d6af0df480220c
+config_hash: 66a5c28bb74d78454456d9ce7d1c0a0c

CHANGELOG.md

@@ -1,5 +1,49 @@
 # Changelog
 
+## 5.2.0 (2026-01-14)
+
+Full Changelog: [v5.1.0...v5.2.0](https://github.com/trycourier/courier-csharp/compare/v5.1.0...v5.2.0)
+
+### Features
+
+* **client:** add helper functions for raw messages ([1781a38](https://github.com/trycourier/courier-csharp/commit/1781a383b5b5bcce7e006a7977330c60e0378792))
+
+
+### Bug Fixes
+
+* **client:** add missing serializer options ([73bd7dd](https://github.com/trycourier/courier-csharp/commit/73bd7dd5e3c5894b25f897bb017093d378425892))
+* **client:** bad deserialize call for void method ([a2a5845](https://github.com/trycourier/courier-csharp/commit/a2a584544f27a936f8fc5013aa62b49ca5cc183b))
+* **client:** bad reference ([9170476](https://github.com/trycourier/courier-csharp/commit/917047605d71bccfa9bf59761d2d25929dab6c3c))
+* **client:** dictionary type ([ad0d8ff](https://github.com/trycourier/courier-csharp/commit/ad0d8ff101b399e4641ed08152123a6a64817699))
+* **client:** ensure deep immutability for deep array/dict structures ([fda9700](https://github.com/trycourier/courier-csharp/commit/fda9700d880e6d5c2a599cc857eb5084cd6d878a))
+* **client:** freeze models on property access ([196bf8e](https://github.com/trycourier/courier-csharp/commit/196bf8ece6a08921215aa1bf4d3629c630a577f6))
+* **client:** missing immutable -> readonly conversion ([2afcb10](https://github.com/trycourier/courier-csharp/commit/2afcb10726e2439230fd872b7034619f155f97f6))
+* **client:** throw api enum errors as invalid data exception ([9bf8de8](https://github.com/trycourier/courier-csharp/commit/9bf8de8236efef6e948df983098b1fc5a82a4a23))
+* **client:** use readonly type for param ([5b2c657](https://github.com/trycourier/courier-csharp/commit/5b2c6573f744cdf6456381871d0d2653aedeb796))
+
+
+### Performance Improvements
+
+* **client:** add json deserialization caching ([fda9700](https://github.com/trycourier/courier-csharp/commit/fda9700d880e6d5c2a599cc857eb5084cd6d878a))
+
+
+### Chores
+
+* **client:** consistently use serializer options ([bc7871a](https://github.com/trycourier/courier-csharp/commit/bc7871afce7fc9f938996de63e88cf72a19f5152))
+* **client:** refactor union instantiation ([ebb48fc](https://github.com/trycourier/courier-csharp/commit/ebb48fc9ce86e1dbb34b0dcb08e897dc29708c04))
+* **client:** use mutable collections for union deserialization ([2d1ab11](https://github.com/trycourier/courier-csharp/commit/2d1ab11aa146ff88da5b65e256c5f590ac8bd713))
+* **internal:** regenerate SDK with no functional changes ([0aed83e](https://github.com/trycourier/courier-csharp/commit/0aed83e54c9b607c1eb5d9bfb1d93842f12ec66b))
+* **internal:** regenerate SDK with no functional changes ([d7df223](https://github.com/trycourier/courier-csharp/commit/d7df223f4f4aa1c432793713da5d925d8ffbdbaf))
+* **internal:** use better namespace aliases ([b754fec](https://github.com/trycourier/courier-csharp/commit/b754fec848c4f2a633817e99521350471ce4500a))
+* **readme:** remove beta warning now that we're in ga ([1974856](https://github.com/trycourier/courier-csharp/commit/19748567c2051affb0156e4651f686cbddecf352))
+* remove custom code ([0324583](https://github.com/trycourier/courier-csharp/commit/0324583376b98670d8affb868689b3e16da9d366))
+
+
+### Refactors
+
+* **client:** add `JsonDictionary` identity methods ([588abd9](https://github.com/trycourier/courier-csharp/commit/588abd9557c5cc0a82b257ed9ac2cd17780ac060))
+* **internal:** `JsonElement` constant construction ([d9577f1](https://github.com/trycourier/courier-csharp/commit/d9577f117079196532685b723308272e2b53c1ff))
+
 ## 5.1.0 (2026-01-12)
 
 Full Changelog: [v5.0.0...v5.1.0](https://github.com/trycourier/courier-csharp/compare/v5.0.0...v5.1.0)

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2025 Courier
+   Copyright 2026 Courier
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.md

@@ -1,12 +1,5 @@
 # Courier C# API Library
 
-> [!NOTE]
-> The Courier C# API Library is currently in **beta** and we're excited for you to experiment with it!
->
-> This library has not yet been exhaustively tested in production environments and may be missing some features you'd expect in a stable release. As we continue development, there may be breaking changes that require updates to your code.
->
-> **We'd love your feedback!** Please share any suggestions, bug reports, feature requests, or general thoughts by [filing an issue](https://www.github.com/trycourier/courier-csharp/issues/new).
-
 The Courier C# SDK provides convenient access to the [Courier REST API](https://www.courier.com/docs) from applications written in C#.
 
 It is generated with [Stainless](https://www.stainless.com/).
@@ -122,10 +115,12 @@ To access this data, prefix any HTTP method call on a client or service with `Wi
 
 ```csharp
 var response = await client.WithRawResponse.Send.Message(parameters);
-var statusCode = response.Message.StatusCode;
-var headers = response.Message.Headers;
+var statusCode = response.StatusCode;
+var headers = response.Headers;
 ```
 
+The raw `HttpResponseMessage` can also be accessed through the `RawMessage` property.
+
 For non-streaming responses, you can deserialize the response into an instance of a C# class if needed:
 
 ```csharp