In order to see what changes has been made in latest release you should go to the product's page. Somewhere in the middle of it's page you'll see News or Version History section. There under the product's version you'll see short release notes. Please use product's release link to see full description of recent changes. For example, here you can see full description of changes made to Store Manager for osCommerce update released - ver. 3.9.7.1110.