diff --git a/appveyor.yml b/appveyor.yml
index b0d31480..dfca609e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,7 @@
 ---
 # configure deployment by AppVeyor.com
 
-version: 21.0.0
+version: 21.1.0
 
 image: Visual Studio 2022
 
@@ -11,15 +11,15 @@ build_script:
   - cmd: gradlew.bat build --console=plain --no-daemon
 
 artifacts:
-  - path: dist/Libbulletjme-21.0.0.jar
+  - path: dist/Libbulletjme-21.1.0.jar
     name: classJar
-  - path: dist/Libbulletjme-21.0.0-javadoc.jar
+  - path: dist/Libbulletjme-21.1.0-javadoc.jar
     name: javadocJar
-  - path: dist/Libbulletjme-21.0.0-sources.jar
+  - path: dist/Libbulletjme-21.1.0-sources.jar
     name: sourcesJar
-  - path: dist/Libbulletjme-21.0.0.pom
+  - path: dist/Libbulletjme-21.1.0.pom
     name: pom
-  - path: dist/Libbulletjme-21.0.0.module
+  - path: dist/Libbulletjme-21.1.0.module
     name: module
   - path: dist/Windows32DebugDp_bulletjme.dll
     name: dll32DD
diff --git a/build.gradle b/build.gradle
index f72ab27a..0c907a4d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ plugins {
 ext {
     group = 'com.github.stephengold'
     artifact = 'Libbulletjme'
-    version = '21.0.0'
+    version = '21.1.0'
     baseName = "${artifact}-${version}" // for artifacts
     websiteUrl = 'https://github.com/stephengold/Libbulletjme'
 }
diff --git a/release-notes.md b/release-notes.md
index 9877da83..4bab3dca 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -1,5 +1,24 @@
 # Release log for the Libbulletjme project
 
+## Version 21.1.0 released on 28 April 2024
+
++ Bugfix:  crash in `processAllTriangles()` when `m_bvh==NULL` (Minie issue 43)
++ Bugfix:  wrong inertia for a `CustomConvexShape` when `mass != 1`
++ Added the `SphericalSegment` collision shape.
++ Added the `TestApp` application for manual testing.
++ Added public methods:
+  + `BoundingValueHierarchy.copyAabb()`
+  + `BoundingValueHierarchy.copyQuantization()`
+  + `BoundingValueHierarchy.countLeafNodes()`
+  + `BoundingValueHierarchy.countNodes()`
+  + `BoundingValueHierarchy.countSubtreeHeaders()`
+  + `BoundingValueHierarchy.escapeIndex()
+  + `BoundingValueHierarchy.isLeafNode()`
+  + `BoundingValueHierarchy.partId()`
+  + `BoundingValueHierarchy.setTraversalMode()`
+  + `BoundingValueHierarchy.traversalMode()`
+  + `BoundingValueHierarchy.triangleIndex()`
+
 ## Version 21.0.0 released on 22 April 2024
 
 + Made numerous breaking changes to the native API.
diff --git a/src/main/java/com/jme3/bullet/util/NativeLibrary.java b/src/main/java/com/jme3/bullet/util/NativeLibrary.java
index d0f92d5b..c31b85fc 100644
--- a/src/main/java/com/jme3/bullet/util/NativeLibrary.java
+++ b/src/main/java/com/jme3/bullet/util/NativeLibrary.java
@@ -52,7 +52,7 @@ final public class NativeLibrary {
     /**
      * expected version string of the native library
      */
-    final public static String expectedVersion = "21.0.0";
+    final public static String expectedVersion = "21.1.0";
     // *************************************************************************
     // constructors
 
diff --git a/src/main/native/glue/jmeClasses.h b/src/main/native/glue/jmeClasses.h
index 65dfc56e..5a6b6257 100644
--- a/src/main/native/glue/jmeClasses.h
+++ b/src/main/native/glue/jmeClasses.h
@@ -38,7 +38,7 @@
  */
 #include <jni.h>
 
-#define LIBBULLETJME_VERSION "21.0.0"
+#define LIBBULLETJME_VERSION "21.1.0"
 
 #define EXCEPTION_CHK(pEnv, retval) \
     if (pEnv->ExceptionCheck()) { \