diff --git a/CHANGES.txt b/CHANGES.txt
index 4f873aa71c..1923eb004c 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,7 @@
+4.0.11
+Merged from 3.11:
+Merged from 3.0:
+
 4.0.10
  * Improve nodetool enable{audit,fullquery}log (CASSANDRA-18550)
  * Report network cache info in nodetool (CASSANDRa-18400)
diff --git a/build.xml b/build.xml
index 2208645c74..f9dc014f26 100644
--- a/build.xml
+++ b/build.xml
@@ -33,7 +33,7 @@
     <property name="debuglevel" value="source,lines,vars"/>
 
     <!-- default version and SCM information -->
-    <property name="base.version" value="4.0.10"/>
+    <property name="base.version" value="4.0.11"/>
     <property name="scm.connection" value="scm:https://gitbox.apache.org/repos/asf/cassandra.git"/>
     <property name="scm.developerConnection" value="scm:https://gitbox.apache.org/repos/asf/cassandra.git"/>
     <property name="scm.url" value="https://gitbox.apache.org/repos/asf?p=cassandra.git;a=tree"/>
diff --git a/debian/changelog b/debian/changelog
index a3c3d87e1d..937aa6501c 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+cassandra (4.0.11) UNRELEASED; urgency=medium
+
+  * New release
+
+ -- Mick Semb Wever <mck@apache.org>  Thu, 25 May 2023 14:44:07 +0200
+
 cassandra (4.0.10) unstable; urgency=medium
 
   * New release