Prepare debian changelog for 4.0-beta4
diff --git a/debian/changelog b/debian/changelog
index a366395..71f5786 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,8 @@
-cassandra (4.0~beta4) UNRELEASED; urgency=medium
+cassandra (4.0~beta4) unstable; urgency=medium
 
   * New release
 
- -- Mick Semb Wever <mck@apache.org>  Thu, 29 Oct 2020 12:59:30 +0100
+ -- Mick Semb Wever <mck@apache.org>  Fri, 18 Dec 2020 18:32:45 +0100
 
 cassandra (4.0~beta3) unstable; urgency=medium