Many of our users are wondering, "Should I upgrade to High Sierra Yet?"
On Monday, September 25, 2017 Apple released MacOS 12.13, known as "High Sierra". Normally, it is a good idea to allow Apple to produce at least a .1 and maybe even a .2 release before converting your system. These point releases shake out the major bugs that are inevitable.
However, High Sierra introduces a major change that affects the normal upgrade timeline: a new file system, known as APFS, or Apple File System. This new file system has been in test for a long time, and in fact is the underlying file system running on the iPhone, iPad and Apple Watch for the past year. It is a major step forward in reliability, security, and for some systems, speed.
However, there exist great potential for incompatibility with third-party software vendors, and we are no exception. We are preparing an update to Movie Magic Screenwriter 6.5 that will address the few incompatibilities we have discovered.
One thing to be aware of is that when installing High Sierra on a Mac with an internal Solid State Drive (SSD), the High Sierra installer will perform a mandatory conversion of your internal SSD drive from HFS+ Journaled to APFS. It's not optional. For users of spinning hard disks, or Apple Fusion Drives that combine a spinning hard disk with an SSD, you can NOT elect to convert to APFS at this time.
Apple usually produces a .1 release within a few weeks of shipping a new operating system. If history is any guide, expect a .2 release within 1-2 months. By that point, major vendors will usually have made adjustments to accommodate any APFS incompatibilities.
As of October 10, 2017, Apple is presently beta-testing macOS High Sierra 12.13.1
Tags: High Sierra MacOS 12.13 APFS compatible compatibility