I also posted updated versions of my releases patched for 1.0.8-1, at https://zcash4win.com and the command line version for mac was just uploaded to https://zcash.dl.mercerweiss.com/zcash-mac-v1.0.8-1.zip (it is stand-alone, position independent binaries, linked against the included libraries which need to be in the same directory as them). Current zcash4mac users can stop the GUI, run the v1.0.8-1 zcashd in the terminal, then restart the GUI wallet and it will use the running, updated zcash.
An updated zcash4mac installer will be forthcoming shortly.