Not able to upgrade to 13.10
12578
How do I upgrade to a newer version of Ubuntu?
134080
Still can't upgrade? Is there a new delay?
129143
Error upgrading to High Sierra
76905
Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
123634
Can't update Xcode
76241
"no public key available" while upgrading using update-manager
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
90512
Upgrading from 12.10 WUBI install to 13.04
24165
Upgrade to version newer than repositories
15687
How do I resume a release upgrade?
74069
Can't update drupal core to 7.27
61473
Failed to fetch because of size mismatch error while upgrading
72603
Unsupported major.minor version 52.0
155154
I am currently using 19.04 and I got "No new release found for 19.10"
127206
Python error when upgrading from 18.10 to 19.04
126659
upgrade from 11.10 to 12.04 - No upgrade option available in update manager
82110
Can't connect to wireless 13.10