Update changelogs from fern repo (#5094)

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

Author: fern-support

fern/products/sdks/generators/csharp/changelog/2026-04-22.mdx

@@ -1,3 +1,12 @@
+## 2.61.1
+**`(fix):`** Emit a `Body` property of type `System.IO.Stream` on wrapped request records
+for endpoints whose request body is `bytes`. Previously the endpoint client
+method emitted `Body = request.Body` but the generated request record did
+not declare a `Body` property, producing a CS1061 compile error on any
+endpoint that combined a binary body with other wrapped parameters
+(e.g. query parameters, headers, or path parameters).
+
+
 ## 2.61.0
 **`(feat):`** Add `offset-semantics` config option. When set to `"page-index"`, offset pagination increments by 1 each page instead of by the number of items returned (`"item-index"`, the default).