Apple’s El Capitan is proving to be a huge pain in the arse for the DJ industry. Having seen Pioneer DJ issue a message of doom and gloom about how the latest beta release of 10.11.4 will break their stuff with Serato software (since fixed), it turns out that the next release of El Capitan is exactly what Rane users need right now to fix their Serato life. Go figure.
I have a Rane MP25 that I use to handle my assorted audio needs in the Worxlab, but that and many other audio interfaces have been borked since I installed El Capitan. Luckily, my Focusrite Forte has continued to give sterling service through all of Apple’s experiments. But now Rane has issued a splendidly detailed account, updated on March 9th of their fun and games with El Capitan. And it seems that the beta that broke Pioneer DJ is the panacea for Rane’s woes.
That said, I really wouldn’t recommend putting a beta OS (note — it’s not even public) on a mission critical computer, and Rane will only support OS X 10.11.4 when it’s a full release. But I really would suggest reading their log to get a better idea of the roller coaster ride that continues to be El Capitan.