Ubuntu 21.04 codename is 'Hirsute Hippo', this version will be supported for 9 months taking care of bug fixes, security patches and new releases.
 The support will end in January 2022 and the recommendation will be to upgrade to the upcoming version Ubuntu 21.10.
 
 Ubuntu 21.04 rellease date is 21 April 2021, here is an overview of the newest version deployment cycle:
 <ul>
 <li>
 Features Freeze - 25 February 2021
 </li>
 <li>
 UI Freeze - 18 March 2021
 </li>
 <li>
 Ubuntu 21.04 Beta - 1 April 2021
 </li>
 <li>
 Kernel Freeze - 8 April 2021
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 <li>
 Release Candidate - 15 April 2021
 </li>
 </ul>
 
 List of expected changes in Ubuntu 21.04:
 <ul>
 <li>
 Python 3.9 will be by default
 </li>
 <li>
 Linux 5.11 kernel
 </li>
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 New wallpaper
 </li>
 <li>
 GNOME Shell performance tweaks
 </li>
 <li>
 No GTK 4 in Ubuntu 21.04, still using GTK3
 </li>
 <li>
 Home folder private by default
 </li>
 </ul>
 You can download a version of Ubuntu 21.40 although it's not stable, <a href="https://cdimage.ubuntu.com/daily-live/current/" target="_blank">here</here>

Check out the upcoming release of Ubuntu 21.04, release date plus a list with the news features 

Ubuntu 21.04 Release Date and FeaturesOS · 2 years ago · 2 min read

Ubuntu 21.04 Release Date and Features
OS · 2 years ago · 2 min read