Apple have announced that several pro applications will no longer be supported in the next version of the Mac OS - macOS High Sierra.

In an email to customers which also includes a link to this support article they write;

"Customers using earlier versions of Apple Pro Apps—including Final Cut Pro, Logic Pro, Motion, Compressor, or MainStage—need to update their apps to be compatible with macOS High Sierra, available this fall.

These versions of Apple Pro Apps are compatible with macOS High Sierra:

• Final Cut Pro X 10.3.4 or later
• Motion 5.3.2 or later
• Compressor 4.3.2 or later
• Logic Pro X 10.3.1 or later
• MainStage 3.3 or later"

There is no suggestion that applications developed by third parties will be affected but as always we recommend you use extreme caution.

You can read the Apple support article here