It's been in the wings for a while, but the official Windows Phone Facebook client has received another update, adding in a number of features alongside various bug fixes. You should be able to download the new version direct from the Windows Marketplace, but do note that you must be running Windows Phone 7.5 or you won't be able to grab the update.

Updating one of the more popular Windows Phone apps just after the 7.5 deadline to access the marketplace is a smart move to help the adoption and conversion of the latest OS version, so I'd expect this to help push users to update their handsets as well as the Facebook app.

The main changes and additions, as pointed out by the Windows Phone Blog team, are:

• Threaded messaging: Full Facebook threaded messaging, including group messaging.
• Better tagging: Now you can tag friends and locations in your posts in the “with” and “at” format.
• Wall cleanup: Use tap and hold to delete posts and comments from your Wall.
• Hot links: Links in posts are now tappable.
• More to “Like”: You can now Like comments.

Or you can head to the AAWP App Directory.