+* UploadBase::stashFileGetKey() and UploadBase::stashSession() were deprecated.
+ Use ...->stashFile()->getFileKey() instead.
+* "Public domain" was removed as a wiki license option from the installer, in
+ favour of CC-0.
+* AuthenticationRequest::$required is now changed from REQUIRED to PRIMARY_REQUIRED
+ on requests needed by primary providers even if all primaries need them.
+ Primary providers are discouraged from returning multiple REQUIRED requests.
+* OOjs UI PHP widgets constructed with the `'infusable' => true` config option
+ will no longer be automatically infused. You should call `OO.ui.infuse()`
+ on them yourself from your JavaScript code.