diff --git a/build.gradle b/build.gradle
index c13f402e..3baf58cf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,7 +16,7 @@ plugins {
 ext {
     downloadZip = 'downloads/JoltPhysics-sg240929.zip'
     group = 'com.github.stephengold'
-    version = '0.9.1-SNAPSHOT'
+    version = '0.9.1'
     baseName = "${artifact}-${version}" // for artifacts
     websiteUrl = 'https://github.com/stephengold/jolt-jni'
 }
diff --git a/release-log.md b/release-log.md
index 024c9d3e..ad606953 100644
--- a/release-log.md
+++ b/release-log.md
@@ -1,5 +1,15 @@
 # release log for the jolt-jni project
 
+## Version 0.9.1 released on TBD
+
++ Finalized the `ObjectStreamIn` class.
++ Bugfix:  various methods lack a native implementation
++ Bugfix:  some native objects could be freed more than once
++ Bugfix:  some `NonCopyable` native objects are never freed
++ Added the `TempAllocatorImplWithMallocFeedback` class (issue #3)
++ Added many public methods to the library.
++ Futher reorganization of the "glue" source files.
+
 ## Version 0.9.0 released on 17 October 2024
 
 + Bugfix:  `Body.setCollisionGroup()` lacks a native implementation
diff --git a/src/main/native/glue/j/Jolt.cpp b/src/main/native/glue/j/Jolt.cpp
index 90712a69..16c9a22e 100644
--- a/src/main/native/glue/j/Jolt.cpp
+++ b/src/main/native/glue/j/Jolt.cpp
@@ -334,7 +334,7 @@ JNIEXPORT void JNICALL Java_com_github_stephengold_joltjni_Jolt_unregisterTypes
  */
 JNIEXPORT jstring JNICALL Java_com_github_stephengold_joltjni_Jolt_versionString
   (JNIEnv *pEnv, jclass) {
-    const jstring result = pEnv->NewStringUTF("0.9.1-SNAPSHOT");
+    const jstring result = pEnv->NewStringUTF("0.9.1");
     return result;
 }