diff --git a/core/resources/build.properties b/core/resources/build.properties
index 8a03463d8..16395f062 100644
--- a/core/resources/build.properties
+++ b/core/resources/build.properties
@@ -1,6 +1,6 @@
 
 # The OpenRocket build version
-build.version=23.09.beta.01
+build.version=23.09
 
 # The copyright year for the build. Displayed in the about dialog.
 # Will show as Copyright 2013-${build.copyright}
diff --git a/install4j/.gitignore b/install4j/.gitignore
deleted file mode 100644
index 60eadae4b..000000000
--- a/install4j/.gitignore
+++ /dev/null
@@ -1,22 +0,0 @@
-# Compiled class file
-*.class
-
-# Log file
-*.log
-
-# Package Files #
-*.jar
-*.war
-*.nar
-*.ear
-*.zip
-*.tar.gz
-*.rar
-
-# Install4j media
-media/
-
-# macOS files
-.DS_Store
-
-code_signing/
diff --git a/install4j/23.09/macOS_resources/DS_Store b/install4j/23.09/macOS_resources/DS_Store
index f1aaaa863..4f8ff6ab6 100755
Binary files a/install4j/23.09/macOS_resources/DS_Store and b/install4j/23.09/macOS_resources/DS_Store differ
diff --git a/install4j/23.09/openrocket-23.09.install4j b/install4j/23.09/openrocket-23.09.install4j
index fd9c9dcc8..4570c171e 100644
--- a/install4j/23.09/openrocket-23.09.install4j
+++ b/install4j/23.09/openrocket-23.09.install4j
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <install4j version="10.0.4" transformSequenceNumber="10">
   <directoryPresets config="../../core/resources/pix/icon" />
-  <application name="OpenRocket 23.09.beta.01" applicationId="8434-9327-1469-6373" mediaDir="media" mediaFilePattern="${compiler:sys.shortName}_${compiler:sys.version}_${compiler:sys.platform}" shortName="OpenRocket" publisher="OpenRocket" publisherWeb="http://openrocket.info" version="23.09.beta.01" allPathsRelative="true" convertDotsToUnderscores="false" macVolumeId="5f58a2be20d8e22f" javaMinVersion="17" javaMaxVersion="17" jdkMode="jdk" jdkName="JDK 11.0">
+  <application name="OpenRocket" applicationId="8434-9327-1469-6373" mediaDir="media" mediaFilePattern="${compiler:sys.shortName}_${compiler:sys.version}_${compiler:sys.platform}" shortName="OpenRocket" publisher="OpenRocket" publisherWeb="http://openrocket.info" version="23.09" allPathsRelative="true" convertDotsToUnderscores="false" macVolumeId="5f58a2be20d8e22f" javaMinVersion="17" javaMaxVersion="17" jdkMode="jdk" jdkName="JDK 11.0">
     <codeSigning macEnabled="true" macPkcs12File="./code_signing/OpenRocket_macOS.p12" windowsEnabled="true" windowsPkcs12File="./code_signing/OpenRocket_Windows.pfx" macNotarize="true" appleId="sibo.vangool@hotmail.com" />
     <jreBundles jdkProviderId="Liberica" release="17/17.0.7+7">
       <modules>
@@ -19,7 +19,7 @@
     </entries>
   </files>
   <launchers>
-    <launcher name="OpenRocket 23.09.beta.01" id="59" icnsFile="../../core/resources/pix/icon/icon-macos.icns">
+    <launcher name="OpenRocket 23.09" id="59" icnsFile="../../core/resources/pix/icon/icon-macos.icns">
       <executable name="OpenRocket" iconSet="true" iconFile="../../core/resources/pix/icon/icon-windows.ico" executableDir="." executableMode="gui">
         <versionInfo include="true" fileDescription="A model rocket flight-trajectory simulator." legalCopyright="Copyright 2007-2023 Sampo Niskanen and Others" internalName="${compiler:sys.shortName} ${compiler:sys.version}" />
       </executable>
diff --git a/install4j/README.md b/install4j/README.md
index e70887c62..1a76c5108 100644
--- a/install4j/README.md
+++ b/install4j/README.md
@@ -18,13 +18,17 @@ to publish installers for the following platforms.
 
 # Instructions on updating the macOS drag-and-drop installer
 This is an example of updating the installer from 22.02 to 23.09.beta.01:
+
+If you use the `macOS_resources/template_dmg_rw.dmg` file, you can skip to step 4
+
 1. Make sure install4j is not opened
 2. Download the OpenRocket-22.02-macOS.dmg file 
-3. Make a read/write .dmg file using the terminal command `hdiutil convert OpenRocket-22.02-macOS.dmg -format UDRW -o 22.02.beta.05_rw.dmg` OR use the `template_dmg_rw.dmg`.
+3. Make a read/write .dmg file using the terminal command `hdiutil convert OpenRocket-22.02-macOS.dmg -format UDRW -o 22.02.beta.05_rw.dmg`
+
 4. Enlarge the writable DMG, by first checking the current size: `hdiutil resize template_dmg_rw.dmg`, e.g. you get 430000 in the 'cur' column, then just resize it to e.g. 500000: `hdiutil resize -sectors 500000 template_dmg_rw.dmg`
 5. Mount the DMG: `hdiutil attach template_dmg_rw.dmg`
 6. Open the OpenRocket-disk from your desktop and change the app name from 22.02 to 23.09 
 7. Copy the .DS_Store to `openrocket/install4j/23.09/macOS_resources` by running the command `cp /Volumes/OpenRocket/.DS_Store openrocket/install4j/23.09/macOS_resources/DS_Store`
 8. Eject the OpenRocket DMG disk from your desktop (important step)
-9. Delete `template_dmg_rw.dmg`
+9. (optional) Delete `template_dmg_rw.dmg`
 10. You're all done!