bump the library version to 2.2.0 and update the release log

Author: stephengold

gradle.properties

@@ -1,7 +1,7 @@
 ## configure Gradle properties for building the Jolt-JNI Project
 
 # Jolt-JNI version string
-jjVersion = 2.1.1-SNAPSHOT
+jjVersion = 2.2.0
 
 ## default artifact ID (used when -Partifact= isn't specified on the command line)
 artifact = jolt-jni

release-log.md

@@ -1,5 +1,29 @@
 # Release log for the Jolt-JNI project
 
+## Version 2.2.0 released on 10 August 2025
+
++ Bugfixes:
+  + JVM crash while trying to create an empty `BodyIdArray`
+  + `UnsatisfiedLinkError` finalizing bulk add on Windows (issue #16)
+
++ New features:
+ + `BodyIdArray`:  add a `length` field and a getter for it and 3 constructors
+ + `BodyInterface`:  add 3 alternative signatures for methods
+ + `BroadPhase`:  add 3 alternative signatures for methods
+ + add the `ConstWheelSettingsTv` interface
+ + `DistanceConstraintSettings`:  add alternative signatures for 2 setters
+ + `PhysicsSettings`:  add accessors for `speculativeContactDistance` (PR #12)
+ + `PhysicsSystem`: add chaining to the `init()` method
+ + `QuatArg`, `RVec3Arg` and `Vec3Arg`:  add `copyTo()` methods
+ + `SoftBodyCreationSettings`:  add an alternate signature for `setPosition()`
+ + `SoftBodySharedSettings`:  add `putRodIndices()` methods
+ + `Support`:  add `getConvexRadius()` and `getSupport()`
+ + `VehicleConstraint`:  add 2 public getters
+
++ Build changes
+ + disable C++ runtime type information (RTTI) and C++ exceptions
+
+
 ## Version 2.1.0 released on 24 July 2025
 
 + Bugfixes: