Merge "(bug 38110) provide a way to separate out schema changes"

diff --cc RELEASE-NOTES-1.21
index 5407687,e2bf3ad..3cfaef4
--- 1/RELEASE-NOTES-1.21
--- 2/RELEASE-NOTES-1.21
+++ b/RELEASE-NOTES-1.21
@@@ -15,9 -16,16 +15,16 @@@ production
    instead.
  
  === New features in 1.21 ===
+ * (bug 38110) Schema changes (adding or dropping tables, indicies and
+   fields) can be now be done separately from from other changes that
+   update.php makes.  This is useful in environments that use database
+   permissions to restrict schema changes but allow the DB user that
+   MediaWiki normally runs as to perform other changes that update.php
+   makes.  Schema changes can be run seperately.  See the file UPGRADE
+   for more information.
  * (bug 34876) jquery.makeCollapsible has been improved in performance.
 -* Added ContentHandler facility to allow extensions to support other content than wikitext.
 -  See docs/contenthandler.txt for details.
 +* Added ContentHandler facility to allow extensions to support other content
 +  than wikitext. See docs/contenthandler.txt for details.
  * New feature was developed for showing high-DPI thumbnails for high-DPI mobile
    and desktop displays (configurable with $wgResponsiveImages).
  * Added new backend to represent and store information about sites and site