BlackBerry Messenger has been updated yet again to version 18.104.22.168. Here's what Adam Zeis had to say about it over at Crackberry.com:
BlackBerry Messenger 22.214.171.124 is now officially available. The update includes some small tweaks here and there, including picture previews, smaller status text, improved groups and more. The update will install right over your older version, but we highly recommend a full backup before you get going. You can snag the new version in BlackBerry App World or by heading over to blackberry.com/messenger on your device browser.