The first official new software update is now rolling out for unbranded HTC One X retail units in Europe, bringing HTC's new flagship phone up to version 1.28.401.9. The 30MB update is being delivered over-the-air, so head to 'Settings > About > Software Updates' to grab the new version. Note that if your One X is network-branded, you'll likely have to wait a little longer for your carrier to approve this update before it's pushed out. And for what it's worth, the new software version is still based on Android 4.0.3 rather than the slightly newer 4.0.4 that's running on some Nexus devices.
So far we're only seeing a few minor changes on our One X -- the phone no longer incorrectly displays the on-screen menu key in certain Google apps, like YouTube, and automatic brightness levels seem to have been pared back somewhat, too. This version is also supposed to fix the battery life issues many One X owners have been reporting in the two weeks since the phone's launch. In addition, we're hearing that the bug which occasionally resulted in garbled text and icons in the notification bar has also been squished.
One X owners, be sure to shout out in the comments if you've noticed any other changes or fixes.