Fern bot/2026 02 02 t19 11 z #358
Merged
+7,109
−3,532
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The older version of the SDK used a runtime serialization layer that was more forgiving. It would handle missing or undefined fields gracefully at runtime, even if they weren't explicitly typed as optional. Now, we generate cleaner TypeScript types with no runtime overhead. The trade off though is that these types strictly follow OpenAPI semantics -- and in OpenAPI 3.x, fields are optional unless explicitly listed in a required array. See here: https://spec.openapis.org/oas/v3.0.3.html#schema