RegexBuddy usually works perfectly for me. RB4 just came out and I downloaded the demo.
Testing it, I am having a problem I didn't have in RB3. I am sure I am missing something obvious and wonder if it may jump out at someone else.
In PHP mode, Match mode, Test mode, I have this pattern (a basic pattern to test some features in a simple password):
^(?=\w{6,10}$)(?=.*?[a-z])(?=.*?[A-Z])(?=.*?\d).*$
In the subject window, I have this:
adfA899 9_PP098kk sadfa88U
But nothing seems to match. In RB3, all three are highlighted. I also tried matching literals (e.g. "horse") but no cigar.
Nothing urgent but if someone else is configuring RB4 I'd love to know what I'm missing.