DANGER WILL ROBINSON, DANGER!
And an even BIGGER warning! Pay EXTREMELY CAREFUL attention to the What'sNew Manual around Page 8 where it talks about the new "Permanent" Versus "User Count" license keys!
Although Pervasive has allowed stacking of general purpose license keys since 1997's release of Pervasive.SQL 7, this is now FORBIDDEN IN PSQLv10.10! If you try to apply two different PSQLv10 license keys to a v10.10 Server, then you will get a wonderful error message "A Permanent License Already Exists".
This means that:
1) Anybody who ever purchased a small license (say, 6 or 10U) and then wanted to add another few users by applying another 6U license will be unable to use PSQLv10.10 until they get a new license key from Pervasive.
2) Anyone who ever needed an uneven user count (like 30, 40, 60, 70, 150, etc.) and thus purchased multiple licenses to stack them will be unable to use PSQLv10.10 until they get a new license key from Pervasive.
3) Anyone who ever wanted to merge two production servers onto a newer, faster server by simply applying both license keys to the same server will be unable to use PSQLv10.10 until they get a new license key from Pervasive.
My understanding is that this great idea is supposed to thwart people violating the WGE license limit of 5 concurrent users, and I can understand this. I even asked about the upcoming limitations during beta testing, and was told that would impact the WGE only. However, somehow, it now impacts the server engines, too, and I'm not thinking that this plan was thought through all the way.
Unfortunately, Pervasive currently has no plan in place to replace the "permanent" licenses with "user count" licenses. They also have no SKU's yet for users upgrading an old PSQLv9 60-User system (50+10) to PSQLv10. (You can upgrade the 50, but you'd have to buy a new 10U User Count Increase.)
The burden will now be on the resellers, OEM's, and Distributors to deal with this mess. You'll now have to stock both new engine licenses AND user count increases in various platforms and user counts. (I know a lot of resellers like us have eliminated the UCI SKU's since they offered no added value anyway.) You'll now have to deal with irate customers who upgrade to PSQLv10.10 over the weekend and try to apply their two keys (for, say, a 30U system) and find their system unusable by more than 20 users until they can get a new key from Pervasive. You'll also get to deal with customer returns of licenses that need to be swapped.
I'm thinking on changing my recommendations about the PSQLv10.10 "downgrade", at least for the near future...