diff --git a/components/lazutils/lazversion.pas b/components/lazutils/lazversion.pas
index db062f6fd8..536c5067cf 100644
--- a/components/lazutils/lazversion.pas
+++ b/components/lazutils/lazversion.pas
@@ -26,9 +26,9 @@ const
   laz_major = 4;
   laz_minor = 0;
   laz_release = 0;
-  laz_patch = 2;
+  laz_patch = 3;
   laz_fullversion = ((laz_major *  100 + laz_minor) * 100 + laz_release) * 100 + laz_patch;
-  laz_version = '4.0.0.2';
+  laz_version = '4.0.0.3';
 
 var
   OnLCLWidgetTypeName: TLCLWidgetTypeNameEvent;  // Set by LCL
diff --git a/ide/lazarus.lpi b/ide/lazarus.lpi
index b11d269101..c43979ba7e 100644
--- a/ide/lazarus.lpi
+++ b/ide/lazarus.lpi
@@ -23,7 +23,7 @@
     <VersionInfo>
       <UseVersionInfo Value="True"/>
       <MajorVersionNr Value="4"/>
-      <BuildNr Value="2"/>
+      <BuildNr Value="3"/>
       <CharSet Value="04B0"/>
       <StringTable ProductName="Lazarus IDE"/>
     </VersionInfo>
diff --git a/ide/lazarus.res b/ide/lazarus.res
index 4db8d20333..9b96c380a2 100644
Binary files a/ide/lazarus.res and b/ide/lazarus.res differ
diff --git a/ide/packages/ideconfig/version.inc b/ide/packages/ideconfig/version.inc
index ad38df0590..cb4ced1b22 100644
--- a/ide/packages/ideconfig/version.inc
+++ b/ide/packages/ideconfig/version.inc
@@ -1 +1 @@
-'4.0RC2'
+'4.0RC3'
diff --git a/lazarus.app/Contents/Info.plist b/lazarus.app/Contents/Info.plist
index 60b1d1a864..6aef5bf027 100644
--- a/lazarus.app/Contents/Info.plist
+++ b/lazarus.app/Contents/Info.plist
@@ -152,7 +152,7 @@
 	<key>CFBundleSignature</key>
 	<string>laza</string>
 	<key>CFBundleVersion</key>
-	<string>2</string>
+	<string>3</string>
 	<key>CSResourcesFileMapped</key>
 	<true/>
 	<key>NSHighResolutionCapable</key>
diff --git a/lcl/interfaces/lcl.lpk b/lcl/interfaces/lcl.lpk
index 248733ffb1..68ceb54b4a 100644
--- a/lcl/interfaces/lcl.lpk
+++ b/lcl/interfaces/lcl.lpk
@@ -130,7 +130,7 @@ end;"/>
 "/>
     <License Value="modified LGPL-2
 "/>
-    <Version Major="4" Build="2"/>
+    <Version Major="4" Build="3"/>
     <Files Count="548">
       <Item1>
         <Filename Value="carbon/agl.pp"/>
diff --git a/lcl/lclbase.lpk b/lcl/lclbase.lpk
index b884ab565c..def8911e61 100644
--- a/lcl/lclbase.lpk
+++ b/lcl/lclbase.lpk
@@ -26,7 +26,7 @@
 "/>
     <License Value="modified LGPL-2
 "/>
-    <Version Major="4" Build="2"/>
+    <Version Major="4" Build="3"/>
     <Files Count="289">
       <Item1>
         <Filename Value="checklst.pas"/>
@@ -1192,7 +1192,7 @@
       </Item288>
       <Item289>
         <Filename Value="taskdlgemulation.pp"/>
-        <UnitName Value="taskdlgemulation"/>
+        <UnitName Value="TaskDlgEmulation"/>
       </Item289>
     </Files>
     <CompatibilityMode Value="True"/>
diff --git a/packager/globallinks/lcl-4.0.0.2.lpl b/packager/globallinks/lcl-4.0.0.3.lpl
similarity index 100%
rename from packager/globallinks/lcl-4.0.0.2.lpl
rename to packager/globallinks/lcl-4.0.0.3.lpl
diff --git a/packager/globallinks/lclbase-4.0.0.2.lpl b/packager/globallinks/lclbase-4.0.0.3.lpl
similarity index 100%
rename from packager/globallinks/lclbase-4.0.0.2.lpl
rename to packager/globallinks/lclbase-4.0.0.3.lpl
diff --git a/tools/install/linux/environmentoptions-arm64.xml b/tools/install/linux/environmentoptions-arm64.xml
index 998a56c568..00c86bac13 100644
--- a/tools/install/linux/environmentoptions-arm64.xml
+++ b/tools/install/linux/environmentoptions-arm64.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <CONFIG>
   <EnvironmentOptions>
-    <Version Value="110" Lazarus="4.0RC2"/>
+    <Version Value="110" Lazarus="4.0RC3"/>
     <LazarusDirectory Value="__LAZARUSDIR__">
       <History Count="1">
         <Item1 Value="/usr/lib/lazarus/"/>
diff --git a/tools/install/linux/environmentoptions.xml b/tools/install/linux/environmentoptions.xml
index f5872b5a02..41134f7417 100644
--- a/tools/install/linux/environmentoptions.xml
+++ b/tools/install/linux/environmentoptions.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <CONFIG>
   <EnvironmentOptions>
-    <Version Value="110" Lazarus="4.0RC2"/>
+    <Version Value="110" Lazarus="4.0RC3"/>
     <LazarusDirectory Value="__LAZARUSDIR__">
       <History Count="1">
         <Item1 Value="/usr/lib/lazarus/"/>
diff --git a/tools/install/macosx/environmentoptions.xml b/tools/install/macosx/environmentoptions.xml
index e5cb68d21a..53a7d17c5b 100644
--- a/tools/install/macosx/environmentoptions.xml
+++ b/tools/install/macosx/environmentoptions.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <CONFIG>
   <EnvironmentOptions>
-    <Version Value="110" Lazarus="4.0RC2"/>
+    <Version Value="110" Lazarus="4.0RC3"/>
     <LazarusDirectory Value="/Developer/lazarus/">
       <History Count="1">
         <Item1 Value="/Developer/lazarus/"/>
diff --git a/tools/install/win/environmentoptions.xml b/tools/install/win/environmentoptions.xml
index a98ca9497c..9ac2356a31 100644
--- a/tools/install/win/environmentoptions.xml
+++ b/tools/install/win/environmentoptions.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <CONFIG>
   <EnvironmentOptions>
-    <Version Value="110" Lazarus="4.0RC2"/>
+    <Version Value="110" Lazarus="4.0RC3"/>
     <LazarusDirectory Value="%LazDir%">
     </LazarusDirectory>
     <CompilerFilename Value="%FpcBinDir%\fpc.exe">