Prepare release 2.0.30 [skip ci]

CHANGELOG.md

@@ -13,11 +13,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Bugs fixed in this release
 
+### Known problems introduced by this release
+
+## [2.0.30](https://github.com/Tenacom/PolyKit/releases/tag/2.0.30) (2022-11-24)
+
+### Bugs fixed in this release
+
 - The polyfill for [`DateOnly`](https://learn.microsoft.com/en-us/dotnet/api/system.dateonly) could generated a `CS8602` warning (possible dereference of a null reference).
 - The polyfill for [`TimeOnly`](https://learn.microsoft.com/en-us/dotnet/api/system.timeonly), when compiled without span support, generated two `CS1503` errors because of a missing preprocessor conditional.
 
-### Known problems introduced by this release
-
 ## [2.0.26](https://github.com/Tenacom/PolyKit/releases/tag/2.0.26) (2022-11-24)
 
 ### Bugs fixed in this release