Prepare debian changelog for 4.1.9
diff --git a/debian/changelog b/debian/changelog
index 96166a4..6133e72 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,8 @@
-cassandra (4.1.9) UNRELEASED; urgency=medium
+cassandra (4.1.9) unstable; urgency=medium
 
   * New release
 
- -- Stefan Miklosovic <smiklosovic@apache.org>  Tue, 04 Feb 2025 09:43:30 +0100
+ -- Brandon Williams <brandonwilliams@apache.org>  Thu, 15 May 2025 10:52:43 -0500
 
 cassandra (4.1.8) unstable; urgency=medium