I believe the answer is yes. The license is by user on annual subscription so you are allowed to use any version that comes out while your licence is valid. The down side is that if you stop your subscription a few years down the road, you won't be able to use any of the versions you have installed.
That would not be a problem as long as any PB developer wanted to keep their work in the "development" only environment. The issue might be if the next build changes some aspects how how the C# .Net Assembly or C# Web API is built internally. So some retrofitting of the beta#2 code "may" be necessary. If Arthur (or any other PB2019 developers for that matter) are willing to accept this possibility, then please proceed (cautiously).
The PB2019 Beta license is probably tied to your subscription renewal date (mine seems to be). So I suspect that you can use beta2 until your current license expires, a beta#3 is released and/or GA (TBD at this time).
Chris is right that doing real development with beta versions has such risk. But in the case of this PB 2019 beta 2 in particular, I don't see any changes from Appeon product engineering side that would cause such problem.
FWIW: Yes, 2019R2 preview "beta" has a few issues with my framework too (or should I say vise versa - LOL). Turns out that its a PB regression bug. So I am not surprised that you might be seeing a few of these in the early beta(s) - like the SelectText(). As Armeen suggests ... please open a support ticket for these. Many thanks in advance!
Well... I have one thing to clarify on top of what Armeen said.
Actually, the DW Converter and PowerScript Migrator features in the Beta will stop functioning after December 31, 2019. We’ve enforced a hard-coded license control in SnapDevelop, so two features will be disabled after the date.
Best regards, Julie
Will there be another beta to replace the current beta so people can continue working/testing beyond December 31st?
Yes we plan to have a customer beta open for all current customers. The customer beta will come out early next January. So people back from Chrismas and New Year holidays can switch to the customer beta after a small rest.