Most significantly, a security issue has been identified and fixed in this release. The issue employs a tactic known as "reverse tabnabbing" in which a link that opens in a new tab contains code that can redirect the original tab to another URL, which could be used as a phishing attempt. Some of the other bug fixes include: Changed the approach of the link proxy to use a background ajax request to improve accuracy and reduce interference. Note that add-ons that build on the link proxy may need to be changed. Add a "quiet zone" to the QR code shown when enabling two-step verification via an app. Ensure that spam checking is run when editing a thread title. Do not autolink across "[" to prevent problems when a URL is surrounded by something that looks like a BB code. Ensure that report threads are created even if the content would exceed the maximum message length. Correctly identify a few additional patterns as bounced emails or challenge requests. When sending messages (via conversations) to users, do the autolinking only at the beginning to avoid making unnecessary page title resolution requests. Change the IPv6 information URL to a different, more complete service. We have also released XenForo Media Gallery updates in order to fix several issues discovered since the previous release. The issues fixed were: User storage quotas are now stored in kilobytes rather than bytes. A rebuild will trigger during upgrade and may make the upgrade appear to take longer than usual. Media items inside an album could not be edited by moderators, even if they had permission to. Fixed an issue which prevented forum posts from having constraints, such as maximum message length, checked properly. Fixed an issue with the Photopost importer to handle a case in PhotoPost that saw some photos having a negative date. Reduced the maximum amount of work the Sitemap handler for media was able to do in each pass to avoid memory limit issues. Change the format of the title of the comments warning handler and avoid an issue with characters being escaped.