Upgrade the OS from 5.x to 6.x
13893
How do I update Android on my device?
36703
How do I upgrade from 12.10 to 13.04?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
63176
How can I update to Ubuntu 21.04?
122693
How can I upgrade Mac OS without the administrator password?
78587
How do I update core to 8.5?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
44696
Mac mini Mac OS 10.6 server migration to new hardware
124724
How to upgrade from Windows 8.0 to 8.1 while keeping all the apps?
4660
Should I be offered the option to upgrade to 18.04.1?
101714
Is there any way to roll back the most recent upgrade?
15687
How do I resume a release upgrade?
153774
Upgrade to Ubuntu 13.10 from ISO image
63514
How do I decide what version of Ubuntu to install?
2136
How to roll back Ubuntu to a previous version?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
10709
Can i upgrade ubuntu without losing my apps and files?