recognizing what is odd in 2.9

[Colin Holgate]

I'm waiting for my password to come back so I can log bugs. In the  
meantime, I was wondering about how to tell the difference between  
things that are wrong, and things that are right but just odd. When I  
see things that seem wrong I try them in 2.8 as well, and they seem  
the same there, which makes them either right and odd, or wrong and  
been around for a while. Is there a list somewhere of bugs that are  
already logged for earlier versions, and if so should they be ignored  
when looking for bugs in 2.9?