When I tried [the TenFour patch] on my Mac min running the Yosemite beta the system would not reboot and I ended up having to boot from the Yosemite Recovery Drive and reinstalling Yosemite to restore functionality.
FWIW, according to Francis Barr in
today's Security Reader Report (MacInTouch Oct 4) '
the latest Yosemite 10.10 beta 4 updates bash from version 3.2.51 to 3.5.23* [...] suggesting that it has patched the Shellshocked vulnerabilities'.
*) 3.
5.23 seems to be a typo, and should probably read 3.
2.53.