The Compiler IDE option 'Allow Undo after save' is now on by default for new installations.

Projects/CompForm.pas

@@ -732,7 +732,7 @@ constructor TCompileForm.Create(AOwner: TComponent);
       FOptions.Autosave := Ini.ReadBool('Options', 'Autosave', False);
       FOptions.MakeBackups := Ini.ReadBool('Options', 'MakeBackups', False);
       FOptions.FullPathInTitleBar := Ini.ReadBool('Options', 'FullPathInTitleBar', False);
-      FOptions.UndoAfterSave := Ini.ReadBool('Options', 'UndoAfterSave', False);
+      FOptions.UndoAfterSave := Ini.ReadBool('Options', 'UndoAfterSave', True);
       FOptions.PauseOnDebuggerExceptions := Ini.ReadBool('Options', 'PauseOnDebuggerExceptions', True);
       FOptions.RunAsDifferentUser := Ini.ReadBool('Options', 'RunAsDifferentUser', False);
       FOptions.AutoComplete := Ini.ReadBool('Options', 'AutoComplete', True);

whatsnew.htm

@@ -75,6 +75,7 @@ For conditions of distribution and use, see <a href="http://www.jrsoftware.org/f
 <li>Compiler changes:
 <ul>
   <li>The Compiler IDE Options button <i>Associate .iss files with this compiler</i> can now associate for the current user instead of displaying an error if administrative privileges are not available.</li>
+  <li>The Compiler IDE option <i>Allow Undo after save</i> is now on by default for new installations.</li>
   <li>The compiler will now throw an error if the $f sequence is missing in a Sign Tool command instead of executing it anyway.</li>
   <li>Fix: The compiler now checks <tt>OutputBaseFileName</tt> and <tt>OutputManifestFile</tt> for bad characters even if <tt>Output</tt> is set to <tt>no</tt>.</li>
 </ul>