diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -48,3 +48,4 @@ 9151328c1c46b72ba6f00d7640d9141e75aa1ca2
 a47eeac5dfa41fa6779d90452affba4091c3ade8 v4.14.1
 4b34ce0d2c3c10510626b3b65044939bb7a2cddf v4.15.0
 14502561d22e6b70613674cd675ae9a604b7989f v4.15.1
+4aaa40b605b01af78a9f6882eca561c54b525ef0 v4.15.2
diff --git a/docs/release-notes/release-notes-4.15.2.rst b/docs/release-notes/release-notes-4.15.2.rst
new file mode 100644
--- /dev/null
+++ b/docs/release-notes/release-notes-4.15.2.rst
@@ -0,0 +1,49 @@
+|RCE| 4.15.2 |RNS|
+------------------
+
+Release Date
+^^^^^^^^^^^^
+
+- 2019-01-22
+
+
+New Features
+^^^^^^^^^^^^
+
+
+
+General
+^^^^^^^
+
+- Rcextensions: updated examples and fixed some small inconsistencies.
+- Api/pull-requests: trigger events for comments/review status changes.
+- Events: trigger 'review_status_change' when reviewers are updated.
+- Diffs: fixed missing limited diff container display on large diffs
+- Pull-requests: increase stability of concurrent pull requests creation by flushing
+  prematurely the statuses of commits.
+
+
+Security
+^^^^^^^^
+
+
+
+Performance
+^^^^^^^^^^^
+
+
+
+Fixes
+^^^^^
+
+- Cache: use global flock to prevent recursion when using gevent workers.
+- Permissions: clear cache for permissions correctly for forks/repos when celery is used.
+- Permissions: clear cache for default user permissions on global app permission changes.
+- Permissions: handle more cases for invalidating permission caches
+- Files-editor: preserve filemode on web edits. Editing files with +x flag removed it.
+
+
+Upgrade notes
+^^^^^^^^^^^^^
+
+- Scheduled release addressing reported problems in 4.15.X releases.
diff --git a/docs/release-notes/release-notes.rst b/docs/release-notes/release-notes.rst
--- a/docs/release-notes/release-notes.rst
+++ b/docs/release-notes/release-notes.rst
@@ -9,6 +9,7 @@ Release Notes
 .. toctree::
    :maxdepth: 1
 
+   release-notes-4.15.2.rst
    release-notes-4.15.1.rst
    release-notes-4.15.0.rst
    release-notes-4.14.1.rst