diff --git a/exist-ant/pom.xml b/exist-ant/pom.xml
index da499e54305..464cd717d36 100644
--- a/exist-ant/pom.xml
+++ b/exist-ant/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/exist-core/pom.xml b/exist-core/pom.xml
index 88d4e38252f..4bff3760530 100644
--- a/exist-core/pom.xml
+++ b/exist-core/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/exist-distribution/pom.xml b/exist-distribution/pom.xml
index f4414673729..46565eb43bd 100644
--- a/exist-distribution/pom.xml
+++ b/exist-distribution/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/exist-docker/pom.xml b/exist-docker/pom.xml
index b14738e457e..6e03e1611e8 100644
--- a/exist-docker/pom.xml
+++ b/exist-docker/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/exist-installer/pom.xml b/exist-installer/pom.xml
index e1b42d50e7d..5b5b8fdaa2a 100644
--- a/exist-installer/pom.xml
+++ b/exist-installer/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/exist-jetty-config/pom.xml b/exist-jetty-config/pom.xml
index 6881f803121..abf8c41819e 100644
--- a/exist-jetty-config/pom.xml
+++ b/exist-jetty-config/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
     </scm>
 
     <build>
diff --git a/exist-parent/pom.xml b/exist-parent/pom.xml
index e35ea3aaccd..c2ecff0ea55 100644
--- a/exist-parent/pom.xml
+++ b/exist-parent/pom.xml
@@ -27,7 +27,7 @@
 
     <groupId>org.exist-db</groupId>
     <artifactId>exist-parent</artifactId>
-    <version>5.6.0-SNAPSHOT</version>
+    <version>5.5.1</version>
     <packaging>pom</packaging>
 
     <name>eXist-db Parent</name>
@@ -61,7 +61,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <mailingLists>
diff --git a/exist-samples/pom.xml b/exist-samples/pom.xml
index bdfb8f28fea..b08cb712ba6 100644
--- a/exist-samples/pom.xml
+++ b/exist-samples/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/exist-service/pom.xml b/exist-service/pom.xml
index a219063e311..cefd384f733 100644
--- a/exist-service/pom.xml
+++ b/exist-service/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/exist-start/pom.xml b/exist-start/pom.xml
index ac0ef1857dc..cc6a2ef9e46 100644
--- a/exist-start/pom.xml
+++ b/exist-start/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
     </scm>
 
     <dependencies>
diff --git a/extensions/contentextraction/pom.xml b/extensions/contentextraction/pom.xml
index fc2d2a9ea32..6f510bf1c26 100644
--- a/extensions/contentextraction/pom.xml
+++ b/extensions/contentextraction/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
     </scm>
 
     <properties>
diff --git a/extensions/exiftool/pom.xml b/extensions/exiftool/pom.xml
index 1c03ef57aeb..33b72e88b0c 100644
--- a/extensions/exiftool/pom.xml
+++ b/extensions/exiftool/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/expath/pom.xml b/extensions/expath/pom.xml
index 1c1babdf08e..7a347df7b57 100644
--- a/extensions/expath/pom.xml
+++ b/extensions/expath/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/exquery/modules/pom.xml b/extensions/exquery/modules/pom.xml
index 52166f7c68d..f33892c81a0 100644
--- a/extensions/exquery/modules/pom.xml
+++ b/extensions/exquery/modules/pom.xml
@@ -32,7 +32,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -54,7 +54,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/exquery/modules/request/pom.xml b/extensions/exquery/modules/request/pom.xml
index 3f565fde719..9cc30cd219c 100644
--- a/extensions/exquery/modules/request/pom.xml
+++ b/extensions/exquery/modules/request/pom.xml
@@ -33,7 +33,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../../exist-parent</relativePath>
     </parent>
 
@@ -55,7 +55,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/exquery/pom.xml b/extensions/exquery/pom.xml
index 740a0aeecd0..b5bd8ba728a 100644
--- a/extensions/exquery/pom.xml
+++ b/extensions/exquery/pom.xml
@@ -32,7 +32,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -54,7 +54,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/exquery/restxq/pom.xml b/extensions/exquery/restxq/pom.xml
index 9536b3b8b33..2c6de7ef17a 100644
--- a/extensions/exquery/restxq/pom.xml
+++ b/extensions/exquery/restxq/pom.xml
@@ -32,7 +32,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -54,7 +54,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/indexes/lucene/pom.xml b/extensions/indexes/lucene/pom.xml
index 3440526f106..84895b23a80 100644
--- a/extensions/indexes/lucene/pom.xml
+++ b/extensions/indexes/lucene/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
     
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
     
     <dependencies>
diff --git a/extensions/indexes/ngram/pom.xml b/extensions/indexes/ngram/pom.xml
index 281df5591d1..a4d3bd605ba 100644
--- a/extensions/indexes/ngram/pom.xml
+++ b/extensions/indexes/ngram/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/indexes/pom.xml b/extensions/indexes/pom.xml
index 04382dbf952..ffc9c28efaf 100644
--- a/extensions/indexes/pom.xml
+++ b/extensions/indexes/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/indexes/range/pom.xml b/extensions/indexes/range/pom.xml
index 4597399dab2..fab17133d5f 100644
--- a/extensions/indexes/range/pom.xml
+++ b/extensions/indexes/range/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/indexes/sort/pom.xml b/extensions/indexes/sort/pom.xml
index 1b0ca9298a1..344513af9c2 100644
--- a/extensions/indexes/sort/pom.xml
+++ b/extensions/indexes/sort/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
     
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
     
     <dependencies>
diff --git a/extensions/indexes/spatial/pom.xml b/extensions/indexes/spatial/pom.xml
index d7703b111b5..d6a20b7941d 100644
--- a/extensions/indexes/spatial/pom.xml
+++ b/extensions/indexes/spatial/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
     
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/extensions/modules/cache/pom.xml b/extensions/modules/cache/pom.xml
index 5740a9a53e9..4e86476cba4 100644
--- a/extensions/modules/cache/pom.xml
+++ b/extensions/modules/cache/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/compression/pom.xml b/extensions/modules/compression/pom.xml
index c8a839154f6..b848c2e3778 100644
--- a/extensions/modules/compression/pom.xml
+++ b/extensions/modules/compression/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/counter/pom.xml b/extensions/modules/counter/pom.xml
index 676c3eb5d2f..5e08aef91cc 100644
--- a/extensions/modules/counter/pom.xml
+++ b/extensions/modules/counter/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/cqlparser/pom.xml b/extensions/modules/cqlparser/pom.xml
index 5a88907e4a1..cfbbaa4d36e 100644
--- a/extensions/modules/cqlparser/pom.xml
+++ b/extensions/modules/cqlparser/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/example/pom.xml b/extensions/modules/example/pom.xml
index f0001d996ac..5cd1a778345 100644
--- a/extensions/modules/example/pom.xml
+++ b/extensions/modules/example/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/exi/pom.xml b/extensions/modules/exi/pom.xml
index bab44866f80..9654c3b604f 100644
--- a/extensions/modules/exi/pom.xml
+++ b/extensions/modules/exi/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/expathrepo/expathrepo-trigger-test/pom.xml b/extensions/modules/expathrepo/expathrepo-trigger-test/pom.xml
index e74f7f0983b..2fe906a5bde 100644
--- a/extensions/modules/expathrepo/expathrepo-trigger-test/pom.xml
+++ b/extensions/modules/expathrepo/expathrepo-trigger-test/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../../exist-parent</relativePath>
     </parent>
 
@@ -43,7 +43,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-        <tag>HEAD</tag>
+        <tag>eXist-5.5.1</tag>
     </scm>
 
     <properties>
diff --git a/extensions/modules/expathrepo/pom.xml b/extensions/modules/expathrepo/pom.xml
index a5b5f87f393..2e6e9b43b3a 100644
--- a/extensions/modules/expathrepo/pom.xml
+++ b/extensions/modules/expathrepo/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
     </scm>
 
     <dependencies>
diff --git a/extensions/modules/file/pom.xml b/extensions/modules/file/pom.xml
index 3c6b50f5302..6c7a358f360 100644
--- a/extensions/modules/file/pom.xml
+++ b/extensions/modules/file/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/image/pom.xml b/extensions/modules/image/pom.xml
index df23f606b61..f58ab5b2ad5 100644
--- a/extensions/modules/image/pom.xml
+++ b/extensions/modules/image/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/jndi/pom.xml b/extensions/modules/jndi/pom.xml
index 25b97b17a68..be5908610da 100644
--- a/extensions/modules/jndi/pom.xml
+++ b/extensions/modules/jndi/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/mail/pom.xml b/extensions/modules/mail/pom.xml
index 0901d09acad..da6ee37bb8e 100644
--- a/extensions/modules/mail/pom.xml
+++ b/extensions/modules/mail/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/extensions/modules/persistentlogin/pom.xml b/extensions/modules/persistentlogin/pom.xml
index 2d17723c93a..8106b82760d 100644
--- a/extensions/modules/persistentlogin/pom.xml
+++ b/extensions/modules/persistentlogin/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <build>
diff --git a/extensions/modules/pom.xml b/extensions/modules/pom.xml
index 34660673f76..7c9d912e02e 100644
--- a/extensions/modules/pom.xml
+++ b/extensions/modules/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/modules/process/pom.xml b/extensions/modules/process/pom.xml
index 75d85308d89..f4294f130f8 100644
--- a/extensions/modules/process/pom.xml
+++ b/extensions/modules/process/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/scheduler/pom.xml b/extensions/modules/scheduler/pom.xml
index b82b3e3af55..678fcabce3b 100644
--- a/extensions/modules/scheduler/pom.xml
+++ b/extensions/modules/scheduler/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/simpleql/pom.xml b/extensions/modules/simpleql/pom.xml
index 93afe37050a..67a61852698 100644
--- a/extensions/modules/simpleql/pom.xml
+++ b/extensions/modules/simpleql/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/sql/pom.xml b/extensions/modules/sql/pom.xml
index 5f56a5289e5..620b0af4230 100644
--- a/extensions/modules/sql/pom.xml
+++ b/extensions/modules/sql/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/xmldiff/pom.xml b/extensions/modules/xmldiff/pom.xml
index bb0cb5cecc9..fab949adf17 100644
--- a/extensions/modules/xmldiff/pom.xml
+++ b/extensions/modules/xmldiff/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/modules/xslfo/pom.xml b/extensions/modules/xslfo/pom.xml
index 57a495ebc8f..d92a140d776 100644
--- a/extensions/modules/xslfo/pom.xml
+++ b/extensions/modules/xslfo/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/extensions/pom.xml b/extensions/pom.xml
index 5fdfc1f31c4..ac1edee0dc0 100644
--- a/extensions/pom.xml
+++ b/extensions/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/security/activedirectory/pom.xml b/extensions/security/activedirectory/pom.xml
index 0e74962c32c..842b8fd9f13 100644
--- a/extensions/security/activedirectory/pom.xml
+++ b/extensions/security/activedirectory/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
     
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
     
     <dependencies>
diff --git a/extensions/security/iprange/pom.xml b/extensions/security/iprange/pom.xml
index 8ad065788e6..0c02b8ed9f8 100644
--- a/extensions/security/iprange/pom.xml
+++ b/extensions/security/iprange/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-        <tag>HEAD</tag>
+        <tag>eXist-5.5.1</tag>
     </scm>
 
     <dependencies>
diff --git a/extensions/security/ldap/pom.xml b/extensions/security/ldap/pom.xml
index 2b0ae6ff9b8..e85bc2730c0 100644
--- a/extensions/security/ldap/pom.xml
+++ b/extensions/security/ldap/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/extensions/security/pom.xml b/extensions/security/pom.xml
index 86bcda3fc0b..52d70ad0321 100644
--- a/extensions/security/pom.xml
+++ b/extensions/security/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>
diff --git a/extensions/webdav/pom.xml b/extensions/webdav/pom.xml
index eb80a1f4426..55876ddf25f 100644
--- a/extensions/webdav/pom.xml
+++ b/extensions/webdav/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <properties>
diff --git a/extensions/xqdoc/pom.xml b/extensions/xqdoc/pom.xml
index e02e98d7c8d..8a8a16d6668 100644
--- a/extensions/xqdoc/pom.xml
+++ b/extensions/xqdoc/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>../../exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <dependencies>
diff --git a/pom.xml b/pom.xml
index 261287d9584..84b64b2929d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.exist-db</groupId>
         <artifactId>exist-parent</artifactId>
-        <version>5.6.0-SNAPSHOT</version>
+        <version>5.5.1</version>
         <relativePath>exist-parent</relativePath>
     </parent>
 
@@ -42,7 +42,7 @@
         <connection>scm:git:https://github.com/exist-db/exist.git</connection>
         <developerConnection>scm:git:https://github.com/exist-db/exist.git</developerConnection>
         <url>scm:git:https://github.com/exist-db/exist.git</url>
-      <tag>HEAD</tag>
+      <tag>eXist-5.5.1</tag>
   </scm>
 
     <modules>