Prep Only: v10p4: Min API Validation: Record types (#35440)

Author: wadepickett

aspnetcore/release-notes/aspnetcore-10/includes/MinimalAPIValidationRecordTypes.md

@@ -0,0 +1,7 @@
+### Improvements to Minimal APIs Validation
+
+<!-- https://github.com/dotnet/aspnetcore/pull/61193 -->
+<!-- https://github.com/dotnet/aspnetcore/pull/61402 -->
+Beginning in Preview 4, ASP.NET Core supports validation on record types. With this enhancement,
+inputs to API endpoints defined using `record` types are now validated automatically, in the same way as
+class types.