Even though HTC is now focusing on its new baby (and possible savior) the HTC One, that doesn't mean the company has completely forgotten about the last generation. AT&T's HTC One X+ has just gotten an update to v1.19.502.1. Sadly, this is still Android 4.1.1, but it does fix a few nagging issues.
The full change log is straight to the point. HTC is fixing bugs, and not much else:
AT&T Address Book Fixes
Other minor bug fixes
One X+ owners can pull the update down manually, or wait for the OTA to show up on its own.