Constant crashes here too.. Fully loaded (64gig) Mac everything latest versions. Crashes happen in Query Designer, or sometimes clicking on a MySQLi recordset to edit. Is there no longer a .dat file in the latest DW 2015 CC ? That used to help.
Noticed in the last month or so DW is constantly polling the FTP connection. Frustrating. I wish there was a DW alternative that all the extensions could also work in. Adobe's got us by the cohones.