Sony has today announced on the company blog that Android 5.0 Lollipop is officially rolling out to the Z Ultra Google Play edition. It was only yesterday that we covered reports stating how users on our forums were receiving notifications that the update was indeed available.
As noted yesterday, the OTA update should clock in at 397 MB, requiring over 500 MB of free internal storage to install. While official word from Sony is that the update should hit devices from this week, regions will vary in the phased roll-out. We'd recommend you keep checking the device every now and then.
Let us know if you've received Lollipop on your Z Ultra GPe in the comments.