Official Ubuntu Documentation
Documentation developed and maintained by the Ubuntu Documentation Project.
| Release | Desktop | Server |
| Ubuntu 25.10 (Questing Quokka) | HTML | HTML and PDF |
| Ubuntu 25.04 (Plucky Puffin) | HTML | HTML and PDF |
| Ubuntu 24.04 LTS (Noble Numbat) | HTML | HTML and PDF |
| Ubuntu 22.04 LTS (Jammy Jellyfish) | HTML | HTML and PDF |
Notes:
The Server documentation source code has moved to github.
The Desktop guide is being migrated to Ubuntu Desktop documentation, similar to the Server guide.
The Desktop links above are available in many different languages. They will be displayed in the preferred language specified by your browser. If the preferred language is not available they will be displayed in English. The Server guide is available solely in English.
Unsupported releases are not shown here. See instructions for upgrading to a supported version.
Useful information: LTS details and release & end-of-life dates (for all versions).
More Ubuntu documentation (MAAS, Juju, Cloud-init, ...)