Dear customers,
We would like to inform you about the current situation regarding compatibility tests on Apple’s latest operating system, El Capitan. In our first statement we were unable to issue a recommendation. We continued to run a considerable number of tests and have come across additional, previously unknown issues. This means that the availability of compatible product versions is further delayed.
We deeply regret the unfortunate news which leads us to advise against updating to OS X 10.11. We’ll keep you posted on anything new in this knowledge base article:
https://www.steinberg.net/nc/en/support/knowledgebase_new/show_details/kb_show/mac-os-x-1011-el-capitan-product-compatibility-info.html