diff --git a/computer-kurzweil-app/pom.xml b/computer-kurzweil-app/pom.xml
index 3f0c36c3..52c5be5a 100644
--- a/computer-kurzweil-app/pom.xml
+++ b/computer-kurzweil-app/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>computer_kurzweil</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
     </parent>
 
     <artifactId>computer-kurzweil-app</artifactId>
diff --git a/pom.xml b/pom.xml
index 3f5a4315..c7579d65 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>org.woehlke.computer.kurzweil</groupId>
     <artifactId>computer_kurzweil</artifactId>
-    <version>2.2.15-SNAPSHOT</version>
+    <version>2.2.15</version>
     <packaging>pom</packaging>
 
     <modules>
@@ -27,7 +27,7 @@
         <connection>scm:git@github.com:Computer-Kurzweil/computer_kurzweil.git</connection>
         <developerConnection>scm:git:git@github.com:Computer-Kurzweil/computer_kurzweil.git</developerConnection>
         <url>https://github.com/Computer-Kurzweil/computer_kurzweil/tree/${project.scm.tag}</url>
-        <tag>head</tag>
+        <tag>v2.2.15</tag>
     </scm>
 
     <organization>
diff --git a/research-and-education/java-swing-prototype-intellij/pom.xml b/research-and-education/java-swing-prototype-intellij/pom.xml
index 86081583..892b062d 100644
--- a/research-and-education/java-swing-prototype-intellij/pom.xml
+++ b/research-and-education/java-swing-prototype-intellij/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>research-and-education</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
     </parent>
 
     <artifactId>java-swing-prototype-intellij</artifactId>
diff --git a/research-and-education/java-swing-prototype-netbeans/pom.xml b/research-and-education/java-swing-prototype-netbeans/pom.xml
index 4bd42db3..eb6d6b03 100644
--- a/research-and-education/java-swing-prototype-netbeans/pom.xml
+++ b/research-and-education/java-swing-prototype-netbeans/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>research-and-education</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
     </parent>
 
     <artifactId>java-swing-prototype-netbeans</artifactId>
diff --git a/research-and-education/pom.xml b/research-and-education/pom.xml
index f47b38c5..14d03e05 100644
--- a/research-and-education/pom.xml
+++ b/research-and-education/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>computer_kurzweil</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-cyclic-cellular-automaton/pom.xml b/single-apps/insourcing/insourcing-cyclic-cellular-automaton/pom.xml
index d35c7f76..eb081649 100644
--- a/single-apps/insourcing/insourcing-cyclic-cellular-automaton/pom.xml
+++ b/single-apps/insourcing/insourcing-cyclic-cellular-automaton/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-diffusion-limited-aggregation/pom.xml b/single-apps/insourcing/insourcing-diffusion-limited-aggregation/pom.xml
index 3a39d3af..a25bb1c4 100644
--- a/single-apps/insourcing/insourcing-diffusion-limited-aggregation/pom.xml
+++ b/single-apps/insourcing/insourcing-diffusion-limited-aggregation/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-kochsnowflake/pom.xml b/single-apps/insourcing/insourcing-kochsnowflake/pom.xml
index 2fc67cfe..9ee554aa 100644
--- a/single-apps/insourcing/insourcing-kochsnowflake/pom.xml
+++ b/single-apps/insourcing/insourcing-kochsnowflake/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-mandelbrot-julia/pom.xml b/single-apps/insourcing/insourcing-mandelbrot-julia/pom.xml
index 565181b1..a6865b8e 100644
--- a/single-apps/insourcing/insourcing-mandelbrot-julia/pom.xml
+++ b/single-apps/insourcing/insourcing-mandelbrot-julia/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-mandelbrot-zoom/pom.xml b/single-apps/insourcing/insourcing-mandelbrot-zoom/pom.xml
index aeaa42d0..ed1036c2 100644
--- a/single-apps/insourcing/insourcing-mandelbrot-zoom/pom.xml
+++ b/single-apps/insourcing/insourcing-mandelbrot-zoom/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-sierpinskitriangle/pom.xml b/single-apps/insourcing/insourcing-sierpinskitriangle/pom.xml
index 272677e4..8a4a1964 100644
--- a/single-apps/insourcing/insourcing-sierpinskitriangle/pom.xml
+++ b/single-apps/insourcing/insourcing-sierpinskitriangle/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-simulated-evolution/pom.xml b/single-apps/insourcing/insourcing-simulated-evolution/pom.xml
index 216bf4ca..2fbb7658 100644
--- a/single-apps/insourcing/insourcing-simulated-evolution/pom.xml
+++ b/single-apps/insourcing/insourcing-simulated-evolution/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-turmite/pom.xml b/single-apps/insourcing/insourcing-turmite/pom.xml
index 7a304e6a..f4179cc1 100644
--- a/single-apps/insourcing/insourcing-turmite/pom.xml
+++ b/single-apps/insourcing/insourcing-turmite/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/insourcing-wator/pom.xml b/single-apps/insourcing/insourcing-wator/pom.xml
index cf969a10..1c895c26 100644
--- a/single-apps/insourcing/insourcing-wator/pom.xml
+++ b/single-apps/insourcing/insourcing-wator/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>insourcing</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/insourcing/pom.xml b/single-apps/insourcing/pom.xml
index 903af3e3..7a51d0b4 100644
--- a/single-apps/insourcing/pom.xml
+++ b/single-apps/insourcing/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>single-apps</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/legacy/cyclic-cellular-automaton/pom.xml b/single-apps/legacy/cyclic-cellular-automaton/pom.xml
index c7560f8c..1d4b773f 100644
--- a/single-apps/legacy/cyclic-cellular-automaton/pom.xml
+++ b/single-apps/legacy/cyclic-cellular-automaton/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>legacy</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/legacy/diffusion-limited-aggregation/pom.xml b/single-apps/legacy/diffusion-limited-aggregation/pom.xml
index 0024d9fd..94aec551 100644
--- a/single-apps/legacy/diffusion-limited-aggregation/pom.xml
+++ b/single-apps/legacy/diffusion-limited-aggregation/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>legacy</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/legacy/mandelbrot/pom.xml b/single-apps/legacy/mandelbrot/pom.xml
index 7122efca..8d002e9e 100644
--- a/single-apps/legacy/mandelbrot/pom.xml
+++ b/single-apps/legacy/mandelbrot/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>legacy</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/legacy/pom.xml b/single-apps/legacy/pom.xml
index 2505363e..528b027c 100644
--- a/single-apps/legacy/pom.xml
+++ b/single-apps/legacy/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>single-apps</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/legacy/simulated-evolution/pom.xml b/single-apps/legacy/simulated-evolution/pom.xml
index 0487ccb6..c30abad5 100644
--- a/single-apps/legacy/simulated-evolution/pom.xml
+++ b/single-apps/legacy/simulated-evolution/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>legacy</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/single-apps/pom.xml b/single-apps/pom.xml
index 868fe2a0..a3bd4b88 100644
--- a/single-apps/pom.xml
+++ b/single-apps/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.woehlke.computer.kurzweil</groupId>
         <artifactId>computer_kurzweil</artifactId>
-        <version>2.2.15-SNAPSHOT</version>
+        <version>2.2.15</version>
         <relativePath>..</relativePath>
     </parent>