Its been 9 years in development, but Joomla 4 will be released on 17th August 2021 🎉🎉
There is a dedicated version of Akeeba Backup Professional for Joomla 4 also. Thanks Nic!
Notes for those with mySites.guru subscriptions:
mySites.guru never performs Joomla upgrades automatically. You have to manually login and request that mySites.guru performant an upgrade.
Due to issues when Joomla 3.10.0 was first released, which, after upgrading to Joomla 3.10.0, the Joomla site would then show a one-click-upgrade path to Joomla 4.0.0 by mistake in Joomla Admin – we went ahead and then made it IMPOSSIBLE to upgrade from Joomla 3.10.0 to Joomla 4.0.0 using mySites.guru – it simply cannot be done.
Joomla 3.10.0 to Joomla 4.0.0 was never an easy upgrade – it was always going to be a migration.
Now the Joomla project accept there were issues and have moved Joomla 4.0.0 to the NEXT update stream, so that Joomla 3.10.0 doesnt see it as an available upgrade unless you have manually selected the update stream.
It is never going to be possible in the future to use mySites.guru to upgrade from Joomla 3.10.0 to Joomla 4.0.0. This is also because we have decided our Joomla 4 and Joomla 3 connector plugins will be different to take advantage of the new minimum version of PHP (7.2.5) that Joomla 4 has.
In order to migrate your site to Joomla 4.0.0 you need to perform a mini-migration – this includes checking all templates, extensions, plugins and modules for compatibility – DO NOT RELY ON THE PRE UPDATE CHECKER – it will flat out lie to you, a known issue!
To migrate a site already connected to mySites.guru:
— Uninstall the mySites.guru system plugin
— Delete the site from mySites.guru
— Perform the mini-migration to Joomla 4
— Use the Add Another Site process to generate the Joomla 4 specific plugin and install that to your live Joomla 4 site to reconnect to mySites.guru.