diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23b4ea12fcec556f50ce53f8aa4b62b17764725f..e62554a29b4a6aabf9238f89b69b4a731c1fb706 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 2.6.3
+Bug fixes:
+* The backend now correctly responds with 4xx error codes instead of 500 to less
+  common errors caused by bad requests from the client-side.
+
+Additional changes:
+* Libraries have been upgraded to fix potential bugs.
+
 ## 2.5.9
 This is a maintenance release which only brings libraries up to date to fix
 potential bugs.
diff --git a/pom.xml b/pom.xml
index f5531448a08e495e18b1575057e560bc463afec0..08870a89e83eb2ec1e4d4c56198721f92526997b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.thm.arsnova</groupId>
 	<artifactId>arsnova-backend</artifactId>
-	<version>2.6.3-SNAPSHOT</version>
+	<version>2.6.3</version>
 	<packaging>war</packaging>
 
 	<properties>