There are 2 types of Ubuntu releases: Interim and LTS. Each Ubuntu LTS is maintained for 10 years total: 5 years of standard support + 5 years of ESM. Interim releases are maintained for 9 months.

For the Ubuntu release cycle please see: The Ubuntu lifecycle and release cadence.

We are happy to provide hosting for the following projects via the cdimage server. While they are not commercially supported by Canonical, they receive full support from their communities.

The cdimage server also hosts releases of other Ubuntu images not found on this server, such as builds for less popular architectures and other non-standard and unsupported images. For Ubuntu Desktop and Server on popular architectures, please see the links above instead.

Ports, Unsupported, and Experimental Images for Ubuntu

For old releases, see

Index of /ubuntu-cd/impish/

Index of /ubuntu-cd/impish/

ubuntu-21.10-beta-desktop-amd64.iso                24-Sep-2021 00:26                  44
ubuntu-21.10-beta-desktop-amd64.iso.zsync          24-Sep-2021 00:26                  50
ubuntu-21.10-beta-desktop-amd64.list               24-Sep-2021 00:26                  45
ubuntu-21.10-beta-desktop-amd64.manifest           24-Sep-2021 00:26                  49
ubuntu-21.10-beta-live-server-amd64.iso            24-Sep-2021 00:28                  48
ubuntu-21.10-beta-live-server-amd64.iso.zsync      24-Sep-2021 00:28                  54
ubuntu-21.10-beta-live-server-amd64.list           24-Sep-2021 00:28                  49
ubuntu-21.10-beta-live-server-amd64.manifest       24-Sep-2021 00:28                  53
ubuntu-21.10-desktop-amd64.iso                     14-Oct-2021 13:52                  39
ubuntu-21.10-desktop-amd64.iso.zsync               14-Oct-2021 13:52                  45
ubuntu-21.10-desktop-amd64.list                    14-Oct-2021 13:52                  40
ubuntu-21.10-desktop-amd64.manifest                14-Oct-2021 13:52                  44
ubuntu-21.10-live-server-amd64.iso                 14-Oct-2021 13:53                  43
ubuntu-21.10-live-server-amd64.iso.zsync           14-Oct-2021 13:53                  49
ubuntu-21.10-live-server-amd64.list                14-Oct-2021 13:53                  44
ubuntu-21.10-live-server-amd64.manifest            14-Oct-2021 13:53                  48