The TMF (Test Management Framework) product was retired in 2015 and is no longer available for sale. The TMF is now part of the Project Management Framework (PMF).
As of PMF 7.2 (released in Dec. 2016), the test management features formerly in TMF will be folded into the PMF release. However, PMF shouldn't be positioned as a test management tool. Test management is just one aspect of the overall agile management features available in Pega Project Management. PMF should be positioned as a scrum/agile management tool, which also lets you optionally manage your library of manual tests.