diff --git a/abstract-document/pom.xml b/abstract-document/pom.xml
index e7fc58047..36f014e67 100644
--- a/abstract-document/pom.xml
+++ b/abstract-document/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>java-design-patterns</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.12.0-SNAPSHOT</version>
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     </parent>
     <artifactId>abstract-document</artifactId>
     <dependencies>
diff --git a/abstract-factory/pom.xml b/abstract-factory/pom.xml
index 734020720..668ebbbd1 100644
--- a/abstract-factory/pom.xml
+++ b/abstract-factory/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
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   </parent>
   <artifactId>abstract-factory</artifactId>
   <dependencies>
diff --git a/adapter/pom.xml b/adapter/pom.xml
index 476eb4dce..f8e550acd 100644
--- a/adapter/pom.xml
+++ b/adapter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>adapter</artifactId>
   <dependencies>
diff --git a/aggregator-microservices/aggregator-service/pom.xml b/aggregator-microservices/aggregator-service/pom.xml
index 5a3490559..8b8156e1b 100644
--- a/aggregator-microservices/aggregator-service/pom.xml
+++ b/aggregator-microservices/aggregator-service/pom.xml
@@ -29,7 +29,7 @@
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         <artifactId>aggregator-microservices</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.12.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/information-microservice/pom.xml b/aggregator-microservices/information-microservice/pom.xml
index 844c2a3d7..1c806e1fe 100644
--- a/aggregator-microservices/information-microservice/pom.xml
+++ b/aggregator-microservices/information-microservice/pom.xml
@@ -29,7 +29,7 @@
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         <groupId>com.iluwatar</groupId>
-        <version>1.12.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/inventory-microservice/pom.xml b/aggregator-microservices/inventory-microservice/pom.xml
index 9fee7db5b..b84208952 100644
--- a/aggregator-microservices/inventory-microservice/pom.xml
+++ b/aggregator-microservices/inventory-microservice/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <artifactId>aggregator-microservices</artifactId>
         <groupId>com.iluwatar</groupId>
-        <version>1.12.0-SNAPSHOT</version>
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/aggregator-microservices/pom.xml b/aggregator-microservices/pom.xml
index d2f0a40dd..bf20ece33 100644
--- a/aggregator-microservices/pom.xml
+++ b/aggregator-microservices/pom.xml
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diff --git a/api-gateway/api-gateway-service/pom.xml b/api-gateway/api-gateway-service/pom.xml
index 4e4714c56..a99214ab3 100644
--- a/api-gateway/api-gateway-service/pom.xml
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   <modelVersion>4.0.0</modelVersion>
   <artifactId>api-gateway-service</artifactId>
diff --git a/api-gateway/image-microservice/pom.xml b/api-gateway/image-microservice/pom.xml
index b5f2f504c..414a3d97e 100644
--- a/api-gateway/image-microservice/pom.xml
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@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
-    <version>1.12.0-SNAPSHOT</version>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/api-gateway/pom.xml b/api-gateway/pom.xml
index 73b2326bd..870980cad 100644
--- a/api-gateway/pom.xml
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diff --git a/api-gateway/price-microservice/pom.xml b/api-gateway/price-microservice/pom.xml
index a39fde8a6..db9061126 100644
--- a/api-gateway/price-microservice/pom.xml
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@@ -29,7 +29,7 @@
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     <groupId>com.iluwatar</groupId>
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   <modelVersion>4.0.0</modelVersion>
diff --git a/async-method-invocation/pom.xml b/async-method-invocation/pom.xml
index 292eb136b..7bab122e3 100644
--- a/async-method-invocation/pom.xml
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diff --git a/bridge/pom.xml b/bridge/pom.xml
index 6ac261286..740fa659a 100644
--- a/bridge/pom.xml
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diff --git a/builder/pom.xml b/builder/pom.xml
index 7d83f6c28..676d2f429 100644
--- a/builder/pom.xml
+++ b/builder/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
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diff --git a/business-delegate/pom.xml b/business-delegate/pom.xml
index 3834b4c8f..70f7a8889 100644
--- a/business-delegate/pom.xml
+++ b/business-delegate/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
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 	<artifactId>business-delegate</artifactId>
 	<dependencies>
diff --git a/caching/pom.xml b/caching/pom.xml
index 7b1b22354..9e1e95c96 100644
--- a/caching/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>caching</artifactId>
   <dependencies>
diff --git a/callback/pom.xml b/callback/pom.xml
index 8615c4653..594d91b52 100644
--- a/callback/pom.xml
+++ b/callback/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>callback</artifactId>
   <dependencies>
diff --git a/chain/pom.xml b/chain/pom.xml
index a1cbffcb2..202e29eba 100644
--- a/chain/pom.xml
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     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
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   <artifactId>chain</artifactId>
   <dependencies>
diff --git a/command/pom.xml b/command/pom.xml
index bb5cd78ff..fca18c3fd 100644
--- a/command/pom.xml
+++ b/command/pom.xml
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     <groupId>com.iluwatar</groupId>
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   <artifactId>command</artifactId>
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diff --git a/composite/pom.xml b/composite/pom.xml
index 6513a104e..6dfb47d38 100644
--- a/composite/pom.xml
+++ b/composite/pom.xml
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   <artifactId>composite</artifactId>
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diff --git a/dao/pom.xml b/dao/pom.xml
index 26c35abb0..1b56f0ed0 100644
--- a/dao/pom.xml
+++ b/dao/pom.xml
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   <artifactId>dao</artifactId>
 
diff --git a/data-mapper/pom.xml b/data-mapper/pom.xml
index f65b647fa..8e2845fd7 100644
--- a/data-mapper/pom.xml
+++ b/data-mapper/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
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 	<artifactId>data-mapper</artifactId>
 	<dependencies>
diff --git a/decorator/pom.xml b/decorator/pom.xml
index 58f2bb0ba..adda649a8 100644
--- a/decorator/pom.xml
+++ b/decorator/pom.xml
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   <artifactId>decorator</artifactId>
   <dependencies>
diff --git a/delegation/pom.xml b/delegation/pom.xml
index 33592dd82..a2c9c82d2 100644
--- a/delegation/pom.xml
+++ b/delegation/pom.xml
@@ -30,7 +30,7 @@
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     <modelVersion>4.0.0</modelVersion>
 
diff --git a/dependency-injection/pom.xml b/dependency-injection/pom.xml
index d8be9fcff..b5727803d 100644
--- a/dependency-injection/pom.xml
+++ b/dependency-injection/pom.xml
@@ -29,7 +29,7 @@
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     <artifactId>java-design-patterns</artifactId>
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diff --git a/double-checked-locking/pom.xml b/double-checked-locking/pom.xml
index f8ac5fa2e..c98e82ec3 100644
--- a/double-checked-locking/pom.xml
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diff --git a/double-dispatch/pom.xml b/double-dispatch/pom.xml
index 8896abd9f..77a456bbe 100644
--- a/double-dispatch/pom.xml
+++ b/double-dispatch/pom.xml
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   <artifactId>double-dispatch</artifactId>
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diff --git a/event-aggregator/pom.xml b/event-aggregator/pom.xml
index 1b1f289b2..5517934bb 100644
--- a/event-aggregator/pom.xml
+++ b/event-aggregator/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
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 	</parent>
 	<artifactId>event-aggregator</artifactId>
 	<dependencies>
diff --git a/event-driven-architecture/pom.xml b/event-driven-architecture/pom.xml
index cccf39088..910654fc6 100644
--- a/event-driven-architecture/pom.xml
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     <artifactId>event-driven-architecture</artifactId>
diff --git a/execute-around/pom.xml b/execute-around/pom.xml
index 23a0a4a15..a2b68d656 100644
--- a/execute-around/pom.xml
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@@ -29,7 +29,7 @@
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diff --git a/facade/pom.xml b/facade/pom.xml
index a526243a1..0fe220e2d 100644
--- a/facade/pom.xml
+++ b/facade/pom.xml
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diff --git a/factory-kit/pom.xml b/factory-kit/pom.xml
index ea2aa5976..9f05e95fc 100644
--- a/factory-kit/pom.xml
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@@ -30,7 +30,7 @@
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diff --git a/factory-method/pom.xml b/factory-method/pom.xml
index 7e1cfd28f..bf4fc1c37 100644
--- a/factory-method/pom.xml
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@@ -29,7 +29,7 @@
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diff --git a/feature-toggle/pom.xml b/feature-toggle/pom.xml
index cf479dd0a..6121609d6 100644
--- a/feature-toggle/pom.xml
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diff --git a/fluentinterface/pom.xml b/fluentinterface/pom.xml
index 2e4129b2d..e8da43e0c 100644
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diff --git a/flux/pom.xml b/flux/pom.xml
index bd454ca23..02a1de27c 100644
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   <artifactId>flux</artifactId>
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diff --git a/flyweight/pom.xml b/flyweight/pom.xml
index a4221d762..ceb6af4c1 100644
--- a/flyweight/pom.xml
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diff --git a/front-controller/pom.xml b/front-controller/pom.xml
index c8f136ca8..4a2f8160e 100644
--- a/front-controller/pom.xml
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@@ -30,7 +30,7 @@
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 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
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 	<dependencies>
diff --git a/half-sync-half-async/pom.xml b/half-sync-half-async/pom.xml
index 5b6ce56b1..e2f8cd62a 100644
--- a/half-sync-half-async/pom.xml
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diff --git a/hexagonal/pom.xml b/hexagonal/pom.xml
index 54f81cf14..0b4ca86ee 100644
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diff --git a/intercepting-filter/pom.xml b/intercepting-filter/pom.xml
index 6ef1e25bc..a9daf1673 100644
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diff --git a/interpreter/pom.xml b/interpreter/pom.xml
index a0003672a..2017535f5 100644
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@@ -29,7 +29,7 @@
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diff --git a/iterator/pom.xml b/iterator/pom.xml
index dcd70f809..d5bf2b037 100644
--- a/iterator/pom.xml
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   <artifactId>iterator</artifactId>
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diff --git a/layers/pom.xml b/layers/pom.xml
index abd888afa..d2bb97695 100644
--- a/layers/pom.xml
+++ b/layers/pom.xml
@@ -30,7 +30,7 @@
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 	<groupId>com.iluwatar.layers</groupId>
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diff --git a/lazy-loading/pom.xml b/lazy-loading/pom.xml
index 37b321aec..c607ccf1a 100644
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diff --git a/mediator/pom.xml b/mediator/pom.xml
index 7f3209479..05a9159b4 100644
--- a/mediator/pom.xml
+++ b/mediator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>mediator</artifactId>
   <dependencies>
diff --git a/memento/pom.xml b/memento/pom.xml
index b7355784c..9379cc83b 100644
--- a/memento/pom.xml
+++ b/memento/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>memento</artifactId>
   <dependencies>
diff --git a/message-channel/pom.xml b/message-channel/pom.xml
index 3afc5b32e..3b35367de 100644
--- a/message-channel/pom.xml
+++ b/message-channel/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 	<artifactId>message-channel</artifactId>
 	<dependencies>
diff --git a/model-view-controller/pom.xml b/model-view-controller/pom.xml
index 0ae6a6fc6..d3569e951 100644
--- a/model-view-controller/pom.xml
+++ b/model-view-controller/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>model-view-controller</artifactId>
   <dependencies>
diff --git a/model-view-presenter/pom.xml b/model-view-presenter/pom.xml
index e0a3c57fb..5185ff8f9 100644
--- a/model-view-presenter/pom.xml
+++ b/model-view-presenter/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>model-view-presenter</artifactId>
   <name>model-view-presenter</name>
diff --git a/monad/pom.xml b/monad/pom.xml
index b737e2174..6b2b03eab 100644
--- a/monad/pom.xml
+++ b/monad/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.12.0-SNAPSHOT</version>
+        <version>1.12.0</version>
     </parent>
     <artifactId>monad</artifactId>
     <dependencies>
diff --git a/monostate/pom.xml b/monostate/pom.xml
index bb246d38c..486f821ff 100644
--- a/monostate/pom.xml
+++ b/monostate/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>monostate</artifactId>
   <dependencies>
diff --git a/multiton/pom.xml b/multiton/pom.xml
index 2482c056b..b5205b629 100644
--- a/multiton/pom.xml
+++ b/multiton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>multiton</artifactId>
   <dependencies>
diff --git a/mute-idiom/pom.xml b/mute-idiom/pom.xml
index 3bfc3bf8a..8508bebc3 100644
--- a/mute-idiom/pom.xml
+++ b/mute-idiom/pom.xml
@@ -21,7 +21,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 	<artifactId>mute-idiom</artifactId>
 	<dependencies>
diff --git a/mutex/pom.xml b/mutex/pom.xml
index c9e0e83b7..1801bce35 100644
--- a/mutex/pom.xml
+++ b/mutex/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>mutex</artifactId>
   <dependencies>
diff --git a/naked-objects/dom/pom.xml b/naked-objects/dom/pom.xml
index be96b2456..81f537628 100644
--- a/naked-objects/dom/pom.xml
+++ b/naked-objects/dom/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 
 	<artifactId>naked-objects-dom</artifactId>
diff --git a/naked-objects/fixture/pom.xml b/naked-objects/fixture/pom.xml
index 6bbaaaeb1..cefed25f9 100644
--- a/naked-objects/fixture/pom.xml
+++ b/naked-objects/fixture/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 
 	<artifactId>naked-objects-fixture</artifactId>
diff --git a/naked-objects/integtests/pom.xml b/naked-objects/integtests/pom.xml
index 68cac3790..283d7ad0d 100644
--- a/naked-objects/integtests/pom.xml
+++ b/naked-objects/integtests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 
 	<artifactId>naked-objects-integtests</artifactId>
diff --git a/naked-objects/pom.xml b/naked-objects/pom.xml
index d34dba9a3..2c0ac4d6c 100644
--- a/naked-objects/pom.xml
+++ b/naked-objects/pom.xml
@@ -15,7 +15,7 @@
 	<parent>
 		<artifactId>java-design-patterns</artifactId>
 		<groupId>com.iluwatar</groupId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 
 	<artifactId>naked-objects</artifactId>
@@ -350,17 +350,17 @@
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-dom</artifactId>
-				<version>1.12.0-SNAPSHOT</version>
+				<version>1.12.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-fixture</artifactId>
-				<version>1.12.0-SNAPSHOT</version>
+				<version>1.12.0</version>
 			</dependency>
 			<dependency>
 				<groupId>${project.groupId}</groupId>
 				<artifactId>naked-objects-webapp</artifactId>
-				<version>1.12.0-SNAPSHOT</version>
+				<version>1.12.0</version>
 			</dependency>
 
 		</dependencies>
diff --git a/naked-objects/webapp/pom.xml b/naked-objects/webapp/pom.xml
index aa7d60438..8378d3c41 100644
--- a/naked-objects/webapp/pom.xml
+++ b/naked-objects/webapp/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>naked-objects</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 
 	<artifactId>naked-objects-webapp</artifactId>
diff --git a/null-object/pom.xml b/null-object/pom.xml
index b765c6537..92ff7d0ac 100644
--- a/null-object/pom.xml
+++ b/null-object/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>null-object</artifactId>
   <dependencies>
diff --git a/object-pool/pom.xml b/object-pool/pom.xml
index 6022ef8a7..be163b80f 100644
--- a/object-pool/pom.xml
+++ b/object-pool/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>object-pool</artifactId>
   <dependencies>
diff --git a/observer/pom.xml b/observer/pom.xml
index fcc3e88aa..c50735fb1 100644
--- a/observer/pom.xml
+++ b/observer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>observer</artifactId>
   <dependencies>
diff --git a/poison-pill/pom.xml b/poison-pill/pom.xml
index b76578122..3e53dc345 100644
--- a/poison-pill/pom.xml
+++ b/poison-pill/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>poison-pill</artifactId>
   <dependencies>
diff --git a/pom.xml b/pom.xml
index 9469941f5..4b0b355cb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
 
 	<groupId>com.iluwatar</groupId>
 	<artifactId>java-design-patterns</artifactId>
-	<version>1.12.0-SNAPSHOT</version>
+	<version>1.12.0</version>
 	<packaging>pom</packaging>
 
 	<inceptionYear>2014</inceptionYear>
diff --git a/private-class-data/pom.xml b/private-class-data/pom.xml
index 877197664..01e0f5d3e 100644
--- a/private-class-data/pom.xml
+++ b/private-class-data/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>private-class-data</artifactId>
   <dependencies>
diff --git a/producer-consumer/pom.xml b/producer-consumer/pom.xml
index c4ea8f1df..1c4231781 100644
--- a/producer-consumer/pom.xml
+++ b/producer-consumer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>producer-consumer</artifactId>
   <dependencies>
diff --git a/property/pom.xml b/property/pom.xml
index c753261d1..371a6438c 100644
--- a/property/pom.xml
+++ b/property/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>property</artifactId>
   <dependencies>
diff --git a/prototype/pom.xml b/prototype/pom.xml
index 7fb43402f..7dbf3e5c9 100644
--- a/prototype/pom.xml
+++ b/prototype/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>prototype</artifactId>
   <dependencies>
diff --git a/proxy/pom.xml b/proxy/pom.xml
index 9936be34b..60f9b0cfe 100644
--- a/proxy/pom.xml
+++ b/proxy/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>proxy</artifactId>
   <dependencies>
diff --git a/publish-subscribe/pom.xml b/publish-subscribe/pom.xml
index 1ff97ca47..60f65e551 100644
--- a/publish-subscribe/pom.xml
+++ b/publish-subscribe/pom.xml
@@ -28,7 +28,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 	<artifactId>publish-subscribe</artifactId>
 	<dependencies>
diff --git a/reactor/pom.xml b/reactor/pom.xml
index 80a15f9d3..0f9d59ba3 100644
--- a/reactor/pom.xml
+++ b/reactor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>reactor</artifactId>
   <dependencies>
diff --git a/reader-writer-lock/pom.xml b/reader-writer-lock/pom.xml
index 0391ea291..0216bf56f 100644
--- a/reader-writer-lock/pom.xml
+++ b/reader-writer-lock/pom.xml
@@ -30,7 +30,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.12.0-SNAPSHOT</version>
+        <version>1.12.0</version>
     </parent>
     <artifactId>reader-writer-lock</artifactId>
     <dependencies>
diff --git a/repository/pom.xml b/repository/pom.xml
index b8b81ee05..4bc5394e1 100644
--- a/repository/pom.xml
+++ b/repository/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>com.iluwatar</groupId>
         <artifactId>java-design-patterns</artifactId>
-        <version>1.12.0-SNAPSHOT</version>
+        <version>1.12.0</version>
     </parent>
     <artifactId>repository</artifactId>
     <dependencies>
diff --git a/resource-acquisition-is-initialization/pom.xml b/resource-acquisition-is-initialization/pom.xml
index 63971d97c..a020f13a6 100644
--- a/resource-acquisition-is-initialization/pom.xml
+++ b/resource-acquisition-is-initialization/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>resource-acquisition-is-initialization</artifactId>
   <dependencies>
diff --git a/semaphore/pom.xml b/semaphore/pom.xml
index a2dc143a1..93d98d19d 100644
--- a/semaphore/pom.xml
+++ b/semaphore/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>semaphore</artifactId>
   <dependencies>
diff --git a/servant/pom.xml b/servant/pom.xml
index a102ad348..c3f56d520 100644
--- a/servant/pom.xml
+++ b/servant/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>servant</artifactId>
   <dependencies>
diff --git a/service-layer/pom.xml b/service-layer/pom.xml
index c5e4eb8d9..56e9c8e69 100644
--- a/service-layer/pom.xml
+++ b/service-layer/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>service-layer</artifactId>
   <dependencies>
diff --git a/service-locator/pom.xml b/service-locator/pom.xml
index f07dc93f8..ec85c4560 100644
--- a/service-locator/pom.xml
+++ b/service-locator/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>service-locator</artifactId>
   <dependencies>
diff --git a/singleton/pom.xml b/singleton/pom.xml
index 8ab7e0686..175ae294b 100644
--- a/singleton/pom.xml
+++ b/singleton/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>singleton</artifactId>
   <dependencies>
diff --git a/specification/pom.xml b/specification/pom.xml
index c54688919..9aa313141 100644
--- a/specification/pom.xml
+++ b/specification/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>specification</artifactId>
   <dependencies>
diff --git a/state/pom.xml b/state/pom.xml
index 2411eb2a7..83fc72dc7 100644
--- a/state/pom.xml
+++ b/state/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>state</artifactId>
   <dependencies>
diff --git a/step-builder/pom.xml b/step-builder/pom.xml
index 8d926d118..31b11816b 100644
--- a/step-builder/pom.xml
+++ b/step-builder/pom.xml
@@ -30,7 +30,7 @@
   <parent>
     <artifactId>java-design-patterns</artifactId>
     <groupId>com.iluwatar</groupId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>step-builder</artifactId>
   <dependencies>
diff --git a/strategy/pom.xml b/strategy/pom.xml
index 934ff8775..b93a14eb1 100644
--- a/strategy/pom.xml
+++ b/strategy/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>strategy</artifactId>
   <dependencies>
diff --git a/template-method/pom.xml b/template-method/pom.xml
index af0b19cb4..5f6492714 100644
--- a/template-method/pom.xml
+++ b/template-method/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>template-method</artifactId>
   <dependencies>
diff --git a/thread-pool/pom.xml b/thread-pool/pom.xml
index 824dcd7af..69a99b94a 100644
--- a/thread-pool/pom.xml
+++ b/thread-pool/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>thread-pool</artifactId>
   <dependencies>
diff --git a/tolerant-reader/pom.xml b/tolerant-reader/pom.xml
index 249788da0..2dafeb376 100644
--- a/tolerant-reader/pom.xml
+++ b/tolerant-reader/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>tolerant-reader</artifactId>
   <dependencies>
diff --git a/twin/pom.xml b/twin/pom.xml
index 010bf37b2..b0e280fe9 100644
--- a/twin/pom.xml
+++ b/twin/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>twin</artifactId>
   <dependencies>
diff --git a/value-object/pom.xml b/value-object/pom.xml
index 66b2342eb..d6866bebf 100644
--- a/value-object/pom.xml
+++ b/value-object/pom.xml
@@ -30,7 +30,7 @@
 	<parent>
 		<groupId>com.iluwatar</groupId>
 		<artifactId>java-design-patterns</artifactId>
-		<version>1.12.0-SNAPSHOT</version>
+		<version>1.12.0</version>
 	</parent>
 	<artifactId>value-object</artifactId>
 	<dependencies>
diff --git a/visitor/pom.xml b/visitor/pom.xml
index 1b594b179..6797315ff 100644
--- a/visitor/pom.xml
+++ b/visitor/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <groupId>com.iluwatar</groupId>
     <artifactId>java-design-patterns</artifactId>
-    <version>1.12.0-SNAPSHOT</version>
+    <version>1.12.0</version>
   </parent>
   <artifactId>visitor</artifactId>
   <dependencies>