Eventide Staff
Hi bibg6611,
You should be able to see the old V2.3 as well as the new beta V3.5 in our software called Eventide Update Utility (EUU for short). You can download EUU on the Pitchfactor support page:
http://www.eventide.com/AudioDivision/Support/Stompboxes/PitchFactor.aspx
V3.0 did have some bugs that affected pitch-tracking in diatonic mode. These were not in V2.3 and we've fixed them in V3.5, and verified that V3.5 is acting like V2.3. V3.5 also fixes numerous bugs, adds a few more features including preset naming and preset output level from V3.0. The non-beta release of V3.5 should be out shortly.