diff --git a/README.md b/README.md
index 43a4bd733..f92d1b308 100644
--- a/README.md
+++ b/README.md
@@ -14,13 +14,14 @@ Initially I developed plugin for NetBeans IDE but because in companies, where I
 ![Screenshots from all](./assets/screenshots_all.png)
 
 # Changelog
-__1.4.11 (SNAPSHOT)__
+__1.4.11 (28-mar-2021)__
+- SR:  improved undo for RSyntax panel [#80](https://github.com/raydac/netbeans-mmd-plugin/issues/80) 
 - IJ:  fixed resource bundle loading under Intellij IDEA 2021.1 EAP
-- ALL: improved text representation of maind map for clipboard
+- ALL: improved text representation of mind map for clipboard
 - ALL: improved folder processing in import-export plugins
-- SR: embedded JDK version updated to 11.0.10+9
-- SR: updated RSyntax panel version to 3.1.2
-- SR: updated PlantUML version to 1.2021.1
+- SR:  embedded JDK version updated to 11.0.10+9
+- SR:  updated RSyntax panel version to 3.1.2
+- SR:  updated PlantUML version to 1.2021.3
 
 __1.4.10 (14-dec-2020)__
 - SR:  added View-Zoom into the main menu toolbar
diff --git a/changelog.txt b/changelog.txt
index 2c1074bfa..855cc419e 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,10 +1,11 @@
-__1.4.11 (SNAPSHOT)__
+__1.4.11 (28-mar-2021)__
+- SR:  improved undo for RSyntax panel [#80](https://github.com/raydac/netbeans-mmd-plugin/issues/80) 
 - IJ:  fixed resource bundle loading under Intellij IDEA 2021.1 EAP
-- ALL: improved text representation of maind map for clipboard
+- ALL: improved text representation of mind map for clipboard
 - ALL: improved folder processing in import-export plugins
-- SR: embedded JDK version updated to 11.0.10+9
-- SR: updated RSyntax panel version to 3.1.2
-- SR: updated PlantUML version to 1.2021.1
+- SR:  embedded JDK version updated to 11.0.10+9
+- SR:  updated RSyntax panel version to 3.1.2
+- SR:  updated PlantUML version to 1.2021.3
 
 __1.4.10 (14-dec-2020)__
 - SR:  added View-Zoom into the main menu toolbar
diff --git a/mind-map/idea-mindmap/build.gradle b/mind-map/idea-mindmap/build.gradle
index 0b7e318cc..0a9c26599 100644
--- a/mind-map/idea-mindmap/build.gradle
+++ b/mind-map/idea-mindmap/build.gradle
@@ -18,7 +18,7 @@ intellij {
     updateSinceUntilBuild false
 }
 
-def mindMapModelVersion = project.hasProperty('mm_model_version') ? project.getProperty('mm_model_version') : "1.4.10"
+def mindMapModelVersion = project.hasProperty('mm_model_version') ? project.getProperty('mm_model_version') : "1.4.11"
 def mindMapCommonVersion = project.hasProperty('mm_ide_common_version') ? project.getProperty('mm_ide_common_version') : project.version
 def mindMapPanelVersion = project.hasProperty('mm_panel_version') ? project.getProperty('mm_panel_version') : project.version
 def commonsIoVersion = project.hasProperty('commonsio_version') ? project.getProperty('commonsio_version') : "2.5"
diff --git a/mind-map/idea-mindmap/pom.xml b/mind-map/idea-mindmap/pom.xml
index b4d55e336..2f1584172 100644
--- a/mind-map/idea-mindmap/pom.xml
+++ b/mind-map/idea-mindmap/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
 
   <artifactId>idea-mindmap</artifactId>
diff --git a/mind-map/idea-mindmap/resources/META-INF/plugin.xml b/mind-map/idea-mindmap/resources/META-INF/plugin.xml
index d915a6ce9..09088ee00 100644
--- a/mind-map/idea-mindmap/resources/META-INF/plugin.xml
+++ b/mind-map/idea-mindmap/resources/META-INF/plugin.xml
@@ -2,7 +2,7 @@
 <idea-plugin version="2">
     <id>nb-mind-map-idea</id>
     <name>IDEA Mind Map</name>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
     <vendor url="https://www.igormaznitsa.com">Igor Maznitsa</vendor>
 
     <category>Knowledge management</category>
@@ -12,8 +12,11 @@
     ]]></description>
 
     <change-notes><![CDATA[
-        <p>1.4.11 (SNAPSHOT)</p>
+        <p>1.4.11 (28-mar-2021)</p>
         <ul>
+          <li>fixed incompatibility with IDEA 2021</li>
+          <li>improved text representation of mind map for clipboard</li>
+          <li>improved folder processing in import-export plugins</li>
         </ul>
         <p>1.4.10 (14-dec-2020)</p>
         <ul>
diff --git a/mind-map/mind-map-ide-common/pom.xml b/mind-map/mind-map-ide-common/pom.xml
index 991e3c9fd..b7a9b3c40 100644
--- a/mind-map/mind-map-ide-common/pom.xml
+++ b/mind-map/mind-map-ide-common/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
 
   <artifactId>mind-map-ide-common</artifactId>
diff --git a/mind-map/mind-map-model/pom.xml b/mind-map/mind-map-model/pom.xml
index 755f7316c..77e31c4bd 100644
--- a/mind-map/mind-map-model/pom.xml
+++ b/mind-map/mind-map-model/pom.xml
@@ -5,12 +5,12 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
 
   <groupId>com.igormaznitsa</groupId>
   <artifactId>mind-map-model</artifactId>
-  <version>1.4.11-SNAPSHOT</version>
+  <version>1.4.11</version>
   <packaging>jar</packaging>
     
   <name>NB Mind Map model</name>
diff --git a/mind-map/mind-map-swing-panel/pom.xml b/mind-map/mind-map-swing-panel/pom.xml
index b8353a6c5..92f170395 100644
--- a/mind-map/mind-map-swing-panel/pom.xml
+++ b/mind-map/mind-map-swing-panel/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
     
   <artifactId>mind-map-swing-panel</artifactId>
diff --git a/mind-map/nb-mind-map/pom.xml b/mind-map/nb-mind-map/pom.xml
index 369348f0f..96b9e541c 100644
--- a/mind-map/nb-mind-map/pom.xml
+++ b/mind-map/nb-mind-map/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
   
   <artifactId>nb-mind-map</artifactId>
diff --git a/mind-map/pom.xml b/mind-map/pom.xml
index 99d1459bb..dcf505cb1 100644
--- a/mind-map/pom.xml
+++ b/mind-map/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.igormaznitsa</groupId>
   <artifactId>mind-map</artifactId>
-  <version>1.4.11-SNAPSHOT</version>
+  <version>1.4.11</version>
   <packaging>pom</packaging>
 
   <inceptionYear>2015</inceptionYear>
@@ -11,13 +11,13 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <main.version.raw>1.4.11</main.version.raw>
-    <main.version>${main.version.raw}-SNAPSHOT</main.version>
-<!--    <main.version>${main.version.raw}</main.version>-->
+<!--    <main.version>${main.version.raw}-SNAPSHOT</main.version>-->
+    <main.version>${main.version.raw}</main.version>
 
     <meta.version>1.1.3</meta.version>
     <uber.pom>1.0.3</uber.pom>
     <iam.commons.version>1.0.0</iam.commons.version>
-    <mindmap.model.version>1.4.11-SNAPSHOT</mindmap.model.version>
+    <mindmap.model.version>1.4.11</mindmap.model.version>
     <jsoup.version>1.11.3</jsoup.version>
     <json.version>20180813</json.version>
     <iharder.version>2.3.9</iharder.version>
diff --git a/mind-map/scia-reto/pom.xml b/mind-map/scia-reto/pom.xml
index 16f6345ed..421d3292f 100644
--- a/mind-map/scia-reto/pom.xml
+++ b/mind-map/scia-reto/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.igormaznitsa</groupId>
     <artifactId>mind-map</artifactId>
-    <version>1.4.11-SNAPSHOT</version>
+    <version>1.4.11</version>
   </parent>
 
   <artifactId>scia-reto</artifactId>
diff --git a/mind-map/scia-reto/src/main/java/com/igormaznitsa/sciareto/ui/tree/ExplorerTree.java b/mind-map/scia-reto/src/main/java/com/igormaznitsa/sciareto/ui/tree/ExplorerTree.java
index 8b1ab3c0a..8c9d8444c 100644
--- a/mind-map/scia-reto/src/main/java/com/igormaznitsa/sciareto/ui/tree/ExplorerTree.java
+++ b/mind-map/scia-reto/src/main/java/com/igormaznitsa/sciareto/ui/tree/ExplorerTree.java
@@ -611,11 +611,8 @@ public boolean doChangeModel(@Nonnull final MindMap model) {
 
         if (editor.getMindMapPanel().getSelectedTopics().length == 0 && createdTopic != null) {
           final Topic forfocus = createdTopic;
-          SwingUtilities.invokeLater(new Runnable() {
-            @Override
-            public void run() {
+          SwingUtilities.invokeLater(() -> {
               editor.getMindMapPanel().focusTo(forfocus);
-            }
           });
         }