Agiloft provides quarterly releases with new functionality, plus monthly maintenance releases consisting of corrections only. Customers with a support contract can download the latest Agiloft upgrade here.
Hosted servers are upgraded with a new release once it is stable and all regressive bugs are fixed. Customers on dedicated servers may control the timing of the upgrade on their server by contacting their sales representative.
For a high-level overview of the release, check out the What's New page. Release Note pages include every documented change in a version, not just the big stuff.