ApplePi-Baker, the application I developed for Mac OS X user that like to work with the Raspberry Pi, is now available in version 1.7, compatible with (at least) Mac OS X 10.11 beta 3 (El Capitan).
With ApplePi-Baker, you can write an IMG file to an SD-Card, prepare an SD-Card for NOOBS use, and make a backup of an SD-Card.
This new version adds compatibility for El Capitan (Mac OS X 10.11), support for identifying SD Cards that have been inserted in READ-ONLY mode, some improved device information, and an improved Sudo password entry dialog.
Unfortunately, doing compression while reading/writing prevents me from using the authentication dialog provided by Apple, and I had to resort to SUDO usage. On all my Mac’s this did not present a problem, but you, the user, need to be part of the Admin user group for this to work. I’m unsure if this is done by default or not. If users run into issues with this, please report it in the comments (here on the ApplePi-Baker article).
For this reason v1.5.1 will remain available in the downloads – for those users that run into a problem.