The official Xubuntu documentation and the contributor documentation.

This documentation is shipped with each Xubuntu release. It is also available online for supported releases at https://xubuntu.org/help/.

Find the latest version packaged for each release at Launchpad.
Each Xubuntu release includes its own branch. In-development releases are maintained on master.

Report issues at Launchpad or with
ubuntu-bug xubuntu-docs

Contribute to translations at Transifex