Invision Community 4.6 brings a brand new achievements system which overhauls the ranks system along with adding the ability to earn points which translates into a higher rank via rules.
As part of the clean-up, we removed the custom member title from the author section of the post as there's a limit to how much information we can show comfortably!
Of course, some communities used custom member titles and wish to continue using them. Fortunately it's easy enough to get them back. Step 1: Log into the ACP and navigate to Members > Profiles > Profile Fields
Step 2: You will see a group called "Retained", inside is a new custom field called "Member Title". This profile field was used in the upgrade to save the custom member title data. Click on the pencil icon to edit.
Step 3: Post upgrade, this field is effectively switched off, but it can easily be switched back on. For the "Display format for topics" choose custom and just use: {$content} as the value. This will remove the "Member Title:" prefix. Save the changes.
You will now see the member title has been restored.
Advanced tip: Only do this if you are comfortable making theme edits! If it all goes wrong, don't panic. There is a revert button to undo your changes! Edit the template bit Forums > topics > postContainer in your active theme and move the block highlighted here up underneath the {{endif}} of the {{$comment->isAnonymous()}} block.