Yes, here's another one.
A SELECT in prior versions was returning a RECNO() from 1 to the number of records in the cursor. But, now the RECNO() is given from the original file.
I had some places in the Universal Thread where I was dealing with this. So, I have to do some workarounds to apply some fixes here and there.
Anyway, it's good to know that information in case you have some code that does what I used to do.