This is Unsupported Software
While we have moved on from the beta distinction, please remember that this release is not officially supported and we do not recommend running pre-release software in a production environment. Support is limited at this time to questions here on the community forums.
Expect many add-ons and styles to be broken after upgrading to 1.2. You must test your add-ons thoroughly or look for updates. Be especially careful with add-ons that cover similar features to ones that are added to 1.2; these may conflict with the core XenForo data. If data conflicts are found, they will need to be resolved in a new add-on release or by removing the add-on before upgrading to 1.2.
If you choose to run unsupported software, it is your responsibility to ensure that you make a backup of your data. We recommend you do this before attempting an upgrade.