Every release I test to make sure everything works but there’s a chance a new version might introduce new bugs. It would be nice to be able to let users download different versions.
For me, allowing at least one previous version would be enough but more versions would be fantastic (so you can discover the introduction of bugs).
IE “You say version 7 and 6 have the same bug. Version 5 works? OK We know bug was introduced in version 6”
This would look like a user opening the Plugin Manager, finding the installed plugin and selecting version from a dropdown list.