As you may know, Canonical has been working a lot at the Ubuntu Touch OTA-4 Update, but the release the OTA-4 Update has been delayed, due to some critical issues discovered.
OTA-4 Highlights:
OTA 4 will switch the system’s code to Ubuntu 15.04 Vivid Vervet and will bring a huge list of features including support for dualSIM, browser improvements, support for USB Tethering and NFC, support for M3U playlists and support for video playback under the lockscreen will been added, among others. But we have already covered the highlights of Ubuntu Touch OTA-4 Update.
A while ago Łukasz Zemczak has confirmed that the Ubuntu Touch OTA-4 update is almost ready and that it might get released on the 15th of June:
“Busy day today. The final OTA-4 candidate is almost ready,” says Łukasz Zemczak. “All in all, once OTA tests are finished, we’ll hand it over to BQ and release. Hopefully, the final OTA-4 release should happen on Monday. But thanks to all of that we included another MMS related fix to the whole batch.”
But Canonical has further plans. The Ubuntu developers announced that full shell rotation will be implemented on the Ubuntu Touch OTA-5, which should be released in mid-July, if everything goes well.
Unlike Android or iOS, Ubuntu Touch is a rolling release, meaning that new features and fixes are added to the current version when ready.