diff --git a/appveyor.yml b/appveyor.yml
index d22bfafb..8c703bb0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,7 @@
 ---
 # configure deployment by AppVeyor.com
 
-version: 17.3.0
+version: 17.4.0
 
 image: Visual Studio 2019
 
@@ -11,15 +11,15 @@ build_script:
   - cmd: gradlew.bat build --console=plain --no-daemon
 
 artifacts:
-  - path: dist/Libbulletjme-17.3.0.jar
+  - path: dist/Libbulletjme-17.4.0.jar
     name: classJar
-  - path: dist/Libbulletjme-17.3.0-javadoc.jar
+  - path: dist/Libbulletjme-17.4.0-javadoc.jar
     name: javadocJar
-  - path: dist/Libbulletjme-17.3.0-sources.jar
+  - path: dist/Libbulletjme-17.4.0-sources.jar
     name: sourcesJar
-  - path: dist/Libbulletjme-17.3.0.pom
+  - path: dist/Libbulletjme-17.4.0.pom
     name: pom
-  - path: dist/Libbulletjme-17.3.0.module
+  - path: dist/Libbulletjme-17.4.0.module
     name: module
   - path: dist/Windows32DebugDp_bulletjme.dll
     name: dll32DD
diff --git a/build.gradle b/build.gradle
index d65064bc..816455cb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ plugins {
 ext {
     group = 'com.github.stephengold'
     artifact = 'Libbulletjme'
-    version = '17.3.0'
+    version = '17.4.0'
     baseName = "${artifact}-${version}"
     websiteUrl = 'https://github.com/stephengold/Libbulletjme'
 }
diff --git a/current.gradle b/current.gradle
index 9148c3e6..377f06b8 100644
--- a/current.gradle
+++ b/current.gradle
@@ -9,7 +9,7 @@ plugins {
 ext {
     group = 'com.github.stephengold'
     artifact = 'Libbulletjme'
-    version = '17.3.0'
+    version = '17.4.0'
     baseName = "${artifact}-${version}"
     websiteUrl = 'https://github.com/stephengold/Libbulletjme'
 }
diff --git a/release-notes.md b/release-notes.md
index 1d4a0dea..6a9ad426 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -1,5 +1,21 @@
 # Release log for the Libbulletjme project
 
+## Version 17.4.0 released on 23 December 2022
+
++ Bugfix: transforms not updated for the `getCalculatedOriginA()` and
+  `getCalculatedOriginB()` methods in the `New6Dof` class
++ Bugfix: `Quatd.isRotationIdentity()` accepts NaNs
++ Bugfix: `toString()` fails for an unassigned `PhysicsCollisionObject`
++ Bugfix: `PhysicsCollisionObject.copyPcoProperties()` results in
+  different collision flags
++ Added 4 new methods:
+  + `New6Dof.calculatedBasisA()`
+  + `New6Dof.calculatedBasisB()`
+  + `PhysicsCollisionObject.collisionFlags()`
+  + `Vec3d.isFinite()`
++ Reduced the likelihood of hash collisions in `Matrix3d`.
++ Made the result of `PhysicsCollisionObject.toString() more concise.
+
 ## Version 17.3.0 released on 15 December 2022
 
 + Bugfix: `getPhysicsRotationDp()` returns wrong rotation for a soft body
diff --git a/src/main/java/com/jme3/bullet/util/NativeLibrary.java b/src/main/java/com/jme3/bullet/util/NativeLibrary.java
index 945f8a9a..eb26ded5 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 of the native library
      */
-    final public static String expectedVersion = "17.3.0";
+    final public static String expectedVersion = "17.4.0";
     // *************************************************************************
     // constructors
 
diff --git a/src/main/native/glue/jmeClasses.h b/src/main/native/glue/jmeClasses.h
index 59e9b000..ed24b009 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 "17.3.0"
+#define LIBBULLETJME_VERSION "17.4.0"
 
 #ifdef _DEBUG
 #define NULL_CHK(pEnv, pointer, message, retval) \