diff --git a/.gitignore b/.gitignore
index c41f82e..ba8ffc7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,3 +24,4 @@
 /kpmcore-20.12.3.tar.xz
 /kpmcore-21.04.0.tar.xz
 /kpmcore-21.11.80.tar.xz
+/kpmcore-21.12.0.tar.xz
diff --git a/kpmcore.spec b/kpmcore.spec
index 9721bfd..949aecf 100644
--- a/kpmcore.spec
+++ b/kpmcore.spec
@@ -1,7 +1,7 @@
-%global unstable 1
+%global unstable 0
 
 Name:           kpmcore
-Version:        21.11.80
+Version:        21.12.0
 Release:        1%{?dist}
 Summary:        Library for managing partitions by KDE programs
 License:        GPLv3+
@@ -86,6 +86,9 @@ developing applications that use %{name}
 
 
 %changelog
+* Thu Dec 16 2021 Mattia Verga <mattia.verga@protonmail.com> - 21.12.0-1
+- Release stable version 21.12.0
+
 * Mon Nov 15 2021 Mattia Verga <mattia.verga@protonmail.com> - 21.11.80-1
 - Release development version 21.11.80
 - Remove retired reiserfs-utils from Recommends
diff --git a/sources b/sources
index 71ac66b..f61f50f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (kpmcore-21.11.80.tar.xz) = 8f43b980518e0cc781210c756aa92239aa01c5867784830e52cbef109d58eb585eb9525dde46dbe430f9c22a56a04b6603d8af4e0d040292f16ba2450268f4ec
+SHA512 (kpmcore-21.12.0.tar.xz) = 107fafb12544a2a109bbdf02635dc65e98b90d049b265837bb276365a2c9d7c6b4d9898dc88b6dc138120a5068ef3904cc0c16d763669cf5bad4ea6ef6338cac