diff --git a/google-http-client-android-test/pom.xml b/google-http-client-android-test/pom.xml
index ac54254b4..720a06ac3 100644
--- a/google-http-client-android-test/pom.xml
+++ b/google-http-client-android-test/pom.xml
@@ -4,7 +4,7 @@
   <groupId>google-http-client</groupId>
   <artifactId>google-http-client-android-test</artifactId>
   <name>Test project for google-http-client-android.</name>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-android-test:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android-test:current} -->
   <packaging>apk</packaging>
 
   <build>
@@ -53,7 +53,7 @@
     <dependency>
       <groupId>com.google.http-client</groupId>
       <artifactId>google-http-client-android</artifactId>
-      <version>2.2.0</version><!-- {x-version-update:google-http-client-android:current} -->
+      <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
       <exclusions>
         <exclusion>
           <artifactId>android</artifactId>
@@ -72,7 +72,7 @@
     <dependency>
       <groupId>com.google.http-client</groupId>
       <artifactId>google-http-client-test</artifactId>
-      <version>2.2.0</version><!-- {x-version-update:google-http-client-test:current} -->
+      <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
       <exclusions>
         <exclusion>
           <artifactId>junit</artifactId>
diff --git a/google-http-client-android/pom.xml b/google-http-client-android/pom.xml
index cc4fb684b..17ee5aff0 100644
--- a/google-http-client-android/pom.xml
+++ b/google-http-client-android/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-android</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-android:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
   <name>Android Platform Extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-apache-v2/pom.xml b/google-http-client-apache-v2/pom.xml
index 4c7f86e27..219efdf22 100644
--- a/google-http-client-apache-v2/pom.xml
+++ b/google-http-client-apache-v2/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-apache-v2</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
   <name>Apache HTTP transport v2 for the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-apache-v5/pom.xml b/google-http-client-apache-v5/pom.xml
index 735fc131d..05e6aac0b 100644
--- a/google-http-client-apache-v5/pom.xml
+++ b/google-http-client-apache-v5/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-apache-v5</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-apache-v5:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v5:current} -->
   <name>Apache HTTP transport v5 for the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-appengine/pom.xml b/google-http-client-appengine/pom.xml
index b5016aded..effc3b4a8 100644
--- a/google-http-client-appengine/pom.xml
+++ b/google-http-client-appengine/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-appengine</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-appengine:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-appengine:current} -->
   <name>Google App Engine extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-assembly/pom.xml b/google-http-client-assembly/pom.xml
index 3b6e354e9..4256a67c1 100644
--- a/google-http-client-assembly/pom.xml
+++ b/google-http-client-assembly/pom.xml
@@ -4,12 +4,12 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-assembly</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-assembly:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-assembly:current} -->
   <packaging>pom</packaging>
   <name>Assembly for the Google HTTP Client Library for Java</name>
 
diff --git a/google-http-client-bom/pom.xml b/google-http-client-bom/pom.xml
index bae3e0f02..fe0957e78 100644
--- a/google-http-client-bom/pom.xml
+++ b/google-http-client-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-bom</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-bom:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-bom:current} -->
   <packaging>pom</packaging>
 
   <name>Google HTTP Client Library for Java BOM</name>
@@ -63,57 +63,57 @@
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-android</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-android:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-android:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-apache-v2</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-apache-v5</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-apache-v5:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-apache-v5:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-appengine</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-appengine:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-appengine:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-findbugs</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-findbugs:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-findbugs:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-gson</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-gson:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-gson:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-jackson2</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-jackson2:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-jackson2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-protobuf</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-protobuf:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-protobuf:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-test</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-test:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-xml</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-http-client-xml:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-xml:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-http-client-findbugs/pom.xml b/google-http-client-findbugs/pom.xml
index e8b89445e..456855a85 100644
--- a/google-http-client-findbugs/pom.xml
+++ b/google-http-client-findbugs/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-findbugs</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-findbugs:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-findbugs:current} -->
   <name>Google APIs Client Library Findbugs custom plugin.</name>
 
   <build>
diff --git a/google-http-client-gson/pom.xml b/google-http-client-gson/pom.xml
index eb2df666a..d21f00989 100644
--- a/google-http-client-gson/pom.xml
+++ b/google-http-client-gson/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-gson</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-gson:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-gson:current} -->
   <name>GSON extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-jackson2/pom.xml b/google-http-client-jackson2/pom.xml
index 3030e0a4b..bd9e18ecd 100644
--- a/google-http-client-jackson2/pom.xml
+++ b/google-http-client-jackson2/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-jackson2</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-jackson2:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-jackson2:current} -->
   <name>Jackson 2 extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-protobuf/pom.xml b/google-http-client-protobuf/pom.xml
index c89f56713..4ee5d4bda 100644
--- a/google-http-client-protobuf/pom.xml
+++ b/google-http-client-protobuf/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-protobuf</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-protobuf:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-protobuf:current} -->
   <name>Protocol Buffer extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-test/pom.xml b/google-http-client-test/pom.xml
index 1a16d60bc..b5359ba59 100644
--- a/google-http-client-test/pom.xml
+++ b/google-http-client-test/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-test</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-test:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-test:current} -->
   <name>Shared classes used for testing of artifacts in the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client-xml/pom.xml b/google-http-client-xml/pom.xml
index abb56facf..50330084f 100644
--- a/google-http-client-xml/pom.xml
+++ b/google-http-client-xml/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client-xml</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-xml:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-xml:current} -->
   <name>XML extensions to the Google HTTP Client Library for Java.</name>
 
   <build>
diff --git a/google-http-client/pom.xml b/google-http-client/pom.xml
index afd84a540..5252342a4 100644
--- a/google-http-client/pom.xml
+++ b/google-http-client/pom.xml
@@ -4,11 +4,11 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-http-client</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client:current} -->
   <name>Google HTTP Client Library for Java</name>
   <description>
     Google HTTP Client Library for Java. Functionality that works on all supported Java platforms,
diff --git a/pom.xml b/pom.xml
index 3a8f3645c..14941b440 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.http-client</groupId>
   <artifactId>google-http-client-parent</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
   <packaging>pom</packaging>
   <name>Parent for the Google HTTP Client Library for Java</name>
   <description>Google HTTP Client Library for Java</description>
@@ -558,7 +558,7 @@
       - google-api-java-client/google-api-client-assembly/android-properties (make the filenames match the version here)
       - Internally, update the default features.json file
     -->
-    <project.http-client.version>2.2.0</project.http-client.version><!-- {x-version-update:google-http-client-parent:current} -->
+    <project.http-client.version>2.2.1-SNAPSHOT</project.http-client.version><!-- {x-version-update:google-http-client-parent:current} -->
     <project.appengine.version>2.0.32</project.appengine.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.jsr305.version>3.0.2</project.jsr305.version>
diff --git a/samples/dailymotion-simple-cmdline-sample/pom.xml b/samples/dailymotion-simple-cmdline-sample/pom.xml
index 1dddd23a8..82c8e0f06 100644
--- a/samples/dailymotion-simple-cmdline-sample/pom.xml
+++ b/samples/dailymotion-simple-cmdline-sample/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.http-client</groupId>
     <artifactId>google-http-client-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-http-client-parent:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-http-client-parent:current} -->
     <relativePath>../../pom.xml</relativePath>
   </parent>
   <artifactId>dailymotion-simple-cmdline-sample</artifactId>
diff --git a/versions.txt b/versions.txt
index aa96b52b5..ce989286a 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,18 +1,18 @@
 # Format:
 # module:released-version:current-version
 
-google-http-client:2.2.0:2.2.0
-google-http-client-bom:2.2.0:2.2.0
-google-http-client-parent:2.2.0:2.2.0
-google-http-client-android:2.2.0:2.2.0
-google-http-client-android-test:2.2.0:2.2.0
-google-http-client-apache-v2:2.2.0:2.2.0
-google-http-client-apache-v5:2.2.0:2.2.0
-google-http-client-appengine:2.2.0:2.2.0
-google-http-client-assembly:2.2.0:2.2.0
-google-http-client-findbugs:2.2.0:2.2.0
-google-http-client-gson:2.2.0:2.2.0
-google-http-client-jackson2:2.2.0:2.2.0
-google-http-client-protobuf:2.2.0:2.2.0
-google-http-client-test:2.2.0:2.2.0
-google-http-client-xml:2.2.0:2.2.0
+google-http-client:2.2.0:2.2.1-SNAPSHOT
+google-http-client-bom:2.2.0:2.2.1-SNAPSHOT
+google-http-client-parent:2.2.0:2.2.1-SNAPSHOT
+google-http-client-android:2.2.0:2.2.1-SNAPSHOT
+google-http-client-android-test:2.2.0:2.2.1-SNAPSHOT
+google-http-client-apache-v2:2.2.0:2.2.1-SNAPSHOT
+google-http-client-apache-v5:2.2.0:2.2.1-SNAPSHOT
+google-http-client-appengine:2.2.0:2.2.1-SNAPSHOT
+google-http-client-assembly:2.2.0:2.2.1-SNAPSHOT
+google-http-client-findbugs:2.2.0:2.2.1-SNAPSHOT
+google-http-client-gson:2.2.0:2.2.1-SNAPSHOT
+google-http-client-jackson2:2.2.0:2.2.1-SNAPSHOT
+google-http-client-protobuf:2.2.0:2.2.1-SNAPSHOT
+google-http-client-test:2.2.0:2.2.1-SNAPSHOT
+google-http-client-xml:2.2.0:2.2.1-SNAPSHOT