diff --git a/ARTS_VERSION b/ARTS_VERSION
index dfe30ee17332053b26bdb0a29e3ad4933c927141..e70b4523ae7ffe8aa3cac8ecd1b093fba5a98737 100644
--- a/ARTS_VERSION
+++ b/ARTS_VERSION
@@ -1 +1 @@
-2.5.12
+2.6.0
diff --git a/ChangeLog b/ChangeLog
index a678ae8bdbcf4aff0ace43aed5d3e5b4d5748025..2d055f49cbeb955618f8a9b4ab9d711b2a623516 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2024-03-12 Oliver Lemke <oliver.lemke@uni-hamburg.de>
+
+	* ARTS-XML-DATA-2.6-1
+
+	* ARTS_VERSION: Bump version to 2.6.0
+
 2023-11-08 Oliver Lemke <oliver.lemke@uni-hamburg.de>
 
 	* ARTS-XML-DATA-2-6-1