Official Ubuntu Documentation
Documentation developed and maintained by the Ubuntu Documentation Project.
|Ubuntu 21.10 (Impish Indri)||HTML||unpublished||unpublished|
|Ubuntu 21.04 (Hirsute Hippo)||HTML||unpublished||unpublished|
|Ubuntu 20.04 LTS (Focal Fossa)||HTML||HTML and PDF||per architecture|
|Ubuntu 18.04 LTS (Bionic Beaver)||HTML||HTML and PDF||per architecture|
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The Server Guide and the Installation Guide are published only for Long Term Support (LTS) releases.