Hi,
I'm running Gantry v4.1.40 Gantry Framework & Base Theme so want to update it to latest 4.1.43 prior to planning change to Joomla4 from Joomla 3.10.3 on PHP7.4.9.
The backend will not find the automatic update option although Update Sites shows enabled and the XML looks ok:
1. You can download Gantry 4 4.1.43 from this site (towards bottom of page) -
https://gantry.org/downloads
then just install that in extensions manager.
2. Gantry 4 is not (and will not be) compatible with Joomla 4. Only Gantry 5.5.x is compatible with Joomla 4 and that would require you to change template and do a lot of redevelopment of your site (effectively starting over).
https://rockettheme.com/blog/joomla/279-rockettheme-update-joomla-4-more
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