Reports are coming in from software developers urging musicians and producers to not upgrade to Sierra, the latest edition of Apple’s Mac OS. Universal Audio, Pioneer DJ, and Plugin Alliance are amongst the list of brands that have sent out alerts advising against upgrading for the time being. Both Ableton and Serato stated that they’ve been testing their products with the new operating system, but haven’t sent out any official announcements regarding compatibility yet. Stay tuned for more information.