We have a few bugs related to Yosemite that we will be fixing in the next update. I do not have the complete list with me. I have been using DW on Yosemite, but probably because I am not doing the same thing things that others are doing, I have not yet run into any issues.
If there is a list of issues for which we have logged bugs available with me, and I am given permissions to share it with you, I will do that.
Thanks, Preran - very helpful!