On September 30 Apple will release the new Mac OS X version El Capitan. Our first tests show that different issues occur when running Steinberg products under OS X 10.11. We therefore cannot recommend our customers to update to El Capitan.
Detailed information regarding product compatibility will be published from October 23, 2015, after completing all compatibility tests. However, we can inform you today that Cubase 8.0.30, Nuendo 7.0.30 and the MR Tools and UR drivers are not compatible with El Capitan and advise you not to update your operating system until we provide compatible versions.
If you rely on a trouble-free operation of our products, we recommend waiting with the update of El Capitan until the entire compatibility chart for all Steinberg products has been published.