- Bug #17355: Fixed Pjax after request event bug (kamarton)
- Bug #17522:`DbManager::isEmptyUserId()` is now protected (samdark)
- Bug #17434: Fixed Internet Explorer 11 AJAX redirect bug in case of 301 and 302 response codes (`XMLHttpRequest: Network Error 0x800c0008`) (kamarton)
- Bug #17449: Ensure `CHECK` statement goes after `COMMENT` in MySQL `QueryBuilder::addCommentOnColumn()` (Manu311)