After upgrading, I found that there are a few incompatibilities with several applications. Thats to be expected I guess. The two biggies for me is CF 8 and MySQL. I havent managed to get CF 8 running yet but I found a fix for MySQL.
It seems that the preference pane will not work to start or stop MySQL yet so you will have to start it manually from the command line and create a link to the socket file.
First, start MySQL in a terminal window with the following command:
Then either close the terminal and open a new one, or just hit Command-N to open a new terminal window. Then type the following:
sudo mkdir /var/mysql/
And lastly, create a symbolic link to point the default socket file:
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
I will keep posting things as I find problems and fixes.
–== UPDATE ==–
Charlie Jackson posted a fix for getting the preference pane to work. I have posted a write up of the fix here.