Updating release notes for 4.2.3.0

Author: foundationdb-ci

docs/sphinx/source/ReleaseNotes.md

@@ -7,6 +7,37 @@ As the [versioning guide](Versioning.md) details, it cannot always be determined
 
 ## 4.2
 
+### 4.2.3.0
+
+<h4> New Features </h4>
+
+* Add support for UUID as primitive type in SQL - [PR #3198](https://github.com/FoundationDB/fdb-record-layer/pull/3198)
+
+<details>
+<summary>
+
+<h4> Build/Test/Documentation/Style Improvements (click to expand) </h4>
+
+</summary>
+
+* Fix release note since 4.2.1.0 release did not get published to maven central - [PR #3279](https://github.com/FoundationDB/fdb-record-layer/pull/3279)
+* Remove more @ExcludeFromJacocoGeneratedReport - [PR #3278](https://github.com/FoundationDB/fdb-record-layer/pull/3278)
+
+</details>
+
+
+**[Full Changelog (4.2.2.0...4.2.3.0)](https://github.com/FoundationDB/fdb-record-layer/compare/4.2.2.0...4.2.3.0)**
+
+#### Mixed Mode Test Results
+
+Mixed mode testing run against the following previous versions:
+
+❌`4.0.559.1`, ❌`4.0.559.2`, ❌`4.0.559.3`, ❌`4.0.559.4`, ❌`4.0.559.6`, ❌`4.0.561.0`, ❌`4.0.562.0`, ❌`4.0.564.0`, ❌`4.0.565.0`, ❌`4.0.566.0`, ❌`4.0.567.0`, ❌`4.0.568.0`, ❌`4.0.569.0`, ❌`4.0.570.0`, ❌`4.0.571.0`, ❌`4.0.572.0`, ❌`4.0.573.0`, ❌`4.0.574.0`, ❌`4.0.575.0`, ❌`4.1.4.0`, ✅`4.1.5.0`, ✅`4.1.6.0`, ✅`4.1.8.0`, ✅`4.1.9.0`, ✅`4.1.10.0`
+
+[See full test run](https://github.com/FoundationDB/fdb-record-layer/actions/runs/14134843186)
+
+
+
 ### 4.2.2.0
 
 <h4> Breaking Changes </h4>