Update changelogs from fern repo (#5642)

Co-authored-by: dsinghvi <10870189+dsinghvi@users.noreply.github.com>

Author: fern-support

fern/products/sdks/generators/python/changelog/2026-05-28.mdx

@@ -1,3 +1,17 @@
+## 5.14.5
+**`(fix):`** Fix TypedDict alias generation when `use_typeddict_requests: true` so that
+container element types (`List[T]`, `Dict[K, V]`, `Set[T]`) and direct aliases
+(`Alias = T`) reach for the request-side `TParams` variant rather than the
+Pydantic model `T`. Without this, request parameters typed as such aliases
+rejected dict-literal values at type-check time even though the runtime accepted
+them.
+
+Note: list-typed alias bodies now resolve to `typing.Sequence[…]` instead of
+`typing.List[…]` under `use_typeddict_requests`, consistent with how endpoint
+parameters are already typed. Existing call sites that pass lists continue to
+work.
+
+
 ## 5.14.4
 **`(fix):`** Fix SSE union discrimination for both data-level and protocol-level contexts.