=== New features in 1.28 ===
* User::isBot() method for checking if an account is a bot role account.
+* Added a new 'slideshow' mode for galleries.
* Added a new hook, 'UserIsBot', to aid in determining if a user is a bot.
* Added a new hook, 'ApiMakeParserOptions', to allow extensions to better
interact with API parsing.
+* Added a new hook, 'UploadVerifyUpload', which can be used to reject a file
+ upload. Unlike 'UploadVerifyFile' it provides information about upload comment
+ and the file description page, but does not run for uploads to stash.
=== External library changes in 1.28 ===