Prep for release.

Author: smillst

docs/CHANGELOG.md

@@ -1,13 +1,11 @@
 <!-- markdownlint-disable no-missing-space-atx -->
 
-Version 3.51.1 (2025-10-02)
+Version 3.51.1 (2025-10-01)
 ---------------------------
 
-**User-visible changes:**
-
-**Implementation details:**
-
 **Closed issues:**
+#6623, #7250.
+
 
 Version 3.51.0 (2025-09-10)
 ---------------------------

release.gradle

@@ -9,7 +9,7 @@ ext {
   //   * any new checkers have been added, or
   //   * backward-incompatible changes have been made to APIs or elsewhere.
   // To make a snapshot release, version should end in "-SNAPSHOT", then: ./gradlew publish
-  releaseVersion = '3.51.1-SNAPSHOT'
+  releaseVersion = '3.51.1'
 
   releaseVersionRegex = "\\d\\.\\d+\\.\\d+(?:\\.\\d)?"