diff --git a/CHANGELOG.md b/CHANGELOG.md
index 675fb09..682980b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# Changes in version 2.??.? - 2020-??-??
+
+
 # Changes in version 2.12.0 - 2020-04-30
 
  * Medium changes
diff --git a/build.xml b/build.xml
index 98b8b69..e3ed6e6 100644
--- a/build.xml
+++ b/build.xml
@@ -7,7 +7,7 @@
 <project default="usage" name="metrics-lib" basedir="."
          xmlns:ivy="antlib:org.apache.ivy.ant">
 
-  <property name="release.version" value="2.12.0" />
+  <property name="release.version" value="2.12.0-dev" />
   <property name="javadoc-title" value="Tor Metrics Library API Documentation"/>
   <property name="javadoc-excludes" value="**/impl/** **/index/** **/internal/** **/log/**" />
   <property name="implementation-title" value="Tor Metrics Library" />