- launchpad.net ubuntu/ milestone/ubuntu-21.01Related milestones and releases. View milestones for Ubuntu. View releases for the Ubuntu Hirsute series.
- linuxbabe.com ubuntu/upgrade-ubuntu-20-04-20-10-…Ubuntu 21.04 , codenamed Hirsute Hippo , is released on April 22, 2021. This tutorial is going to you 2 ways to upgrade Ubuntu 20.04/Ubuntu 20.10 to 21.04 .
- tomshardware.com news/ubuntu-21-04-hirsute-hippoUbuntu 21.04's biggest change is a change from Xorg display server to Weyland, which is a welcome move given the age of Xorg.
- linuxstoney.com ubuntu-21-10-beta/A beta release of the Ubuntu 21.10 "Impish Indri" Beta Available to Download with GNOME 40, The release is scheduled for October 14th.
- ubuntustudio.org 21-04-release-notes/Due to the change in desktop environment, direct upgrades to Ubuntu Studio 21.04 from versions prior to 20.10 are unsupported.
- ubuntu-mate.org blog/ubuntu-mate-hirsute-hippo-…That’s the smell of fresh paint with just a hint of cucumber. Ubuntu MATE 21.04 is here and it has a new look thanks to the collaboration with the Yaru team .
- linuxcompatible.org story/ubuntu-2104-release-…Ubuntu 21.04 is due for release on April 22, 2021. It will become the latest stable release of Ubuntu, succeeding Ubuntu 20.10 which was released last.
- server-world.info en/note…Download Ubuntu 21.04 ( released on 22 April 2021, supported untill the end of Janually 2022 ) from the following site.
- linuxandubuntu.com home/ubuntu-21-04-hirsute-…Ubuntu 21.04 codenamed “Hirsute Hippo” packs with some cool new features and a lot of improvements over its predecessor Ubuntu 20.10.
- Ubuntu 21.10 (Impish Indri). Select an image. Ubuntu is distributed on three types of images described below.