How do I upgrade 19.04 to 19.10 when packages won't update?
1520
How to install software or upgrade from an old unsupported release?
65099
Unable to install any updates through update manager/apt-get upgrade
87236
How to upgrade Ubuntu 12.04 to 13.10?
2236
Why don't the Ubuntu repositories have the latest versions of software?
45993
How to keep up with packages and know which ones are obsolete?
5830
How to prevent updating of a specific package?
23096
How to remove obsolete packages after failed release upgrade via do-release-upgrade on Ubuntu?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
36703
How do I upgrade from 12.10 to 13.04?
16578
How to upgrade a single package using apt-get?
91491
How can I get "delta" packages to optimize apt-get upgrade downloads?
19288
Update manager doesn't offer an upgrade to the new release
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
140371
Update Ubuntu 10.04
421
How do I update a Drupal distribution to a newer version?
77692
How do I update Drush to the latest available version?