diff --git a/components/lazutils/lazversion.pas b/components/lazutils/lazversion.pas
index ed28d7caf9..f993db2657 100644
--- a/components/lazutils/lazversion.pas
+++ b/components/lazutils/lazversion.pas
@@ -24,11 +24,11 @@ type
 
 const
   laz_major = 4;
-  laz_minor = 2;
+  laz_minor = 3;
   laz_release = 0;
   laz_patch = 0;
   laz_fullversion = ((laz_major *  100 + laz_minor) * 100 + laz_release) * 100 + laz_patch;
-  laz_version = '4.2.0.0';
+  laz_version = '4.3.0.0';
 
 var
   OnLCLWidgetTypeName: TLCLWidgetTypeNameEvent;  // Set by LCL
diff --git a/docs/html/locallclfooter.xml b/docs/html/locallclfooter.xml
index fa86bc32df..77c6968de5 100644
--- a/docs/html/locallclfooter.xml
+++ b/docs/html/locallclfooter.xml
@@ -1,7 +1,7 @@
 <table cellspacing="0" cellpadding="0" class="bar" width="100%">
 <tr>
 <td align="center">
-Version 4.2
+Version 4.3
 </td>
 <td align="center">
 <a href="https://lazarus-ccr.sourceforge.io/docs/" 
diff --git a/ide/lazarus.lpi b/ide/lazarus.lpi
index 6da4138ffc..0fe00af47a 100644
--- a/ide/lazarus.lpi
+++ b/ide/lazarus.lpi
@@ -23,7 +23,7 @@
     <VersionInfo>
       <UseVersionInfo Value="True"/>
       <MajorVersionNr Value="4"/>
-      <MinorVersionNr Value="2"/>
+      <MinorVersionNr Value="3"/>
       <CharSet Value="04B0"/>
       <StringTable ProductName="Lazarus IDE"/>
     </VersionInfo>
diff --git a/ide/lazarus.res b/ide/lazarus.res
index fbc9ec665c..2b8494fdbe 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 d79d2813fe..67d9b287c5 100644
--- a/ide/packages/ideconfig/version.inc
+++ b/ide/packages/ideconfig/version.inc
@@ -1 +1 @@
-'4.2'
+'4.3'
diff --git a/lazarus.app/Contents/Info.plist b/lazarus.app/Contents/Info.plist
index fe394f2386..01bbb9fc53 100644
--- a/lazarus.app/Contents/Info.plist
+++ b/lazarus.app/Contents/Info.plist
@@ -148,7 +148,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.2</string>
+	<string>4.3</string>
 	<key>CFBundleSignature</key>
 	<string>laza</string>
 	<key>CFBundleVersion</key>
diff --git a/lcl/interfaces/lcl.lpk b/lcl/interfaces/lcl.lpk
index 0674e9a530..2fb166bf7c 100644
--- a/lcl/interfaces/lcl.lpk
+++ b/lcl/interfaces/lcl.lpk
@@ -130,7 +130,7 @@ end;"/>
 "/>
     <License Value="modified LGPL-2
 "/>
-    <Version Major="4" Minor="2"/>
+    <Version Major="4" Minor="3"/>
     <Files Count="548">
       <Item1>
         <Filename Value="carbon/agl.pp"/>
diff --git a/lcl/lclbase.lpk b/lcl/lclbase.lpk
index eb469b83fc..3733fd4b0e 100644
--- a/lcl/lclbase.lpk
+++ b/lcl/lclbase.lpk
@@ -26,7 +26,7 @@
 "/>
     <License Value="modified LGPL-2
 "/>
-    <Version Major="4" Minor="2"/>
+    <Version Major="4" Minor="3"/>
     <Files Count="289">
       <Item1>
         <Filename Value="checklst.pas"/>
diff --git a/packager/globallinks/lcl-4.2.lpl b/packager/globallinks/lcl-4.3.lpl
similarity index 100%
rename from packager/globallinks/lcl-4.2.lpl
rename to packager/globallinks/lcl-4.3.lpl
diff --git a/packager/globallinks/lclbase-4.2.lpl b/packager/globallinks/lclbase-4.3.lpl
similarity index 100%
rename from packager/globallinks/lclbase-4.2.lpl
rename to packager/globallinks/lclbase-4.3.lpl
diff --git a/tools/install/linux/environmentoptions-arm64.xml b/tools/install/linux/environmentoptions-arm64.xml
index e3c4ec2ad2..6dbdd95f7b 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="4.2"/>
+    <Version Value="110" Lazarus="4.3"/>
     <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 1dbca80ba2..865da09e74 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="4.2"/>
+    <Version Value="110" Lazarus="4.3"/>
     <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 c75ee59f0f..4817e8a768 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="4.2"/>
+    <Version Value="110" Lazarus="4.3"/>
     <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 0e881d9e51..864dddaff2 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="4.2"/>
+    <Version Value="110" Lazarus="4.3"/>
     <LazarusDirectory Value="%LazDir%">
     </LazarusDirectory>
     <CompilerFilename Value="%FpcBinDir%\fpc.exe">