: The ability to start a project on an iPhone or iPad and seamlessly finish it on a Mac remained a standout feature for mobile creators. The Bad: Performance & Workflow Shifts
Whether you're or looking to switch from an older version
: Reviewers found the redesigned interface counter-intuitive compared to the "stacked timeline" and precision editing tools of iMovie 9. iMovie 10.1.9
Released in April 2018, served as a targeted maintenance update for macOS High Sierra (10.13.2+) users. While it successfully introduced essential support for modern mobile formats like the iPhone X , its reception was polarized due to performance regressions and a continued departure from the beloved workflow of iMovie 9. Key Features & Enhancements
The primary focus of this version was compatibility with the contemporary hardware and media of the time: : The ability to start a project on
: Built on the foundations of the 10.1 branch, this version continued to offer accessible 4K editing (3840x2160) for compatible Macs.
: Users reported significant slowdowns in import times—sometimes jumping from minutes to over an hour—and frequent "Can't Encode" errors during export. If you're having a (like black screens or export fails)
If you're having a (like black screens or export fails)