Merge "WAN and stash cache notes"

diff --combined RELEASE-NOTES-1.26
index a6196dc,5688ed6..f22a546
--- 1/RELEASE-NOTES-1.26
--- 2/RELEASE-NOTES-1.26
+++ b/RELEASE-NOTES-1.26
@@@ -42,6 -42,11 +42,11 @@@ production
  * Added new hooks 'EnhancedChangesListModifyLineData' &
    'EnhancedChangesListModifyBlockLineData', to modify the data used to build
    lines in enhanced recentchanges and watchlist.
+ * Caches that need purging ability now use the WANObjectCache interface.
+   This corresponds to a new $wgMainWANCache setting, which defaults to using
+   the $wgMainCacheType settings.
+ * Callers needing fast light-weight data stores use $wgMainStash to select
+   the store type from $wgObjectCaches. The default is the local database.
  
  ==== External libraries ====
  * Update es5-shim from v4.0.0 to v4.1.5.
@@@ -84,7 -89,6 +89,7 @@@ changes to languages because of Phabric
  * Languages added:
  ** dty (डोटेली/Doteli), thanks to translators जनक राज भट्ट, बिप्लब आनन्द,
     मेश सिंह बोहरा, and राम प्रसाद जोशी
 +** luz (لئری جئنوٙڤی / Southern Luri)
  
  === Other changes in 1.26 ===
  * ChangeTags::tagDescription() will return false if the interface message
@@@ -129,7 -133,6 +134,7 @@@
  * $wgSpecialPageGroups was removed (deprecated in 1.21).
  * SpecialPageFactory::setGroup was removed (deprecated in 1.21).
  * SpecialPageFactory::getGroup was removed (deprecated in 1.21).
 +* DatabaseBase::ignoreErrors() is now protected.
  
  == Compatibility ==