Mention delete own changes in 2.14 release notes

Change-Id: Ida8b4b6ecf6274497468dabf84fd497c681b0059
diff --git a/releases/2.14.md b/releases/2.14.md
index 7be5933..4a32cfe 100644
--- a/releases/2.14.md
+++ b/releases/2.14.md
@@ -5,6 +5,7 @@
 ## Release Highlights
 
 * Changes can be assigned to specific users
+* Open and Abandoned changes can be deleted
 * HTML emails and new templating framework
 * Support for receiving review comments by email
 * New [Polymer](https://www.polymer-project.org/) based user interface
@@ -47,6 +48,14 @@
 A new `assignee:` search predicate allows to find changes assigned to a given
 user.
 
+### Delete Changes
+
+* [Issue 4509](https://bugs.chromium.org/p/gerrit/issues/detail?id=4509):
+Open and Abandoned changes can be deleted by administrators and by users who have
+the
+[Delete Own Changes](http://gerrit-documentation.storage.googleapis.com/Documentation/2.14/access-control.html#category_delete_own_changes)
+permission.
+
 ### Emails
 
 #### HTML Emails
diff --git a/releases/README.md b/releases/README.md
index 556e299..e4a73ac 100644
--- a/releases/README.md
+++ b/releases/README.md
@@ -12,6 +12,8 @@
 
 * Changes can be assigned to specific users
 
+* Open and Abandoned changes can be deleted
+
 * HTML emails and new templating framework
 
 * Support for receiving review comments by email