Hi,
you can see changelog at
http://docs.easy-profile.com/index.php/article/changelog, there is a link also in download area.
When we release some update that require a user action or there are some backward incompatibility we publish a link in download page to explain user action (for example delete old template overrides).
We does not have a roadmap, now our priority is bug fixes and make compatibility with coming soon J4.x. This require a very big work.
The latest update contain bug fixes, minor improvements and integration with new com_privacy released in Joomla 3.9. Joomla 3.9 will be released in these days (original release date was 23 october).