bump the library version to 3.5.2 and update the release log

stephengold · stephengold · commit aea8618d9858 · 2026-01-07T14:50:37.000-08:00
diff --git a/gradle.properties b/gradle.properties
@@ -1,7 +1,7 @@
 ## configure Gradle properties for building the Jolt-JNI Project
 
 # Jolt-JNI version string:
-jjVersion = 3.5.2-SNAPSHOT
+jjVersion = 3.5.2
 
 ## default artifact ID (used when -Partifact= isn't specified on the command line)
 artifact = jolt-jni
diff --git a/release-log.md b/release-log.md
@@ -1,5 +1,10 @@
 # Release log for the Jolt-JNI project
 
+## Version 3.5.2 released on TBD
+
++ Bugfix:  logic error in `Body.applyBuoyancyImpulse()` (issue #31)
++ Updated the Checkstyle tool to v13, requiring JDK 21+ to build.
+
 ## Version 3.5.1 released on 28 December 2025
 
 + Bugfixes:
