To help Final Cut Pro X (FCP X) users get ready for post-Mojave releases of MacOS, which will lack QuickTime 7, Apple’s latest version of FCP X, v10.4.6, is able to find files encoded in media formats that rely on QuickTime 7 and transcode them to different formats that will be supported by Apple’s pro video apps in the future.

The long list of formats that will be unsupported by Apple’s FCP, Motion and Compressor pro video software with the next MacOS update, which will shed the old 32-bit QuickTime 7 framework, includes Avid DNxHD and DNxHR, CineForm, Flash Video, JPEG 2000, and Windows Media 7, 8, and 9. For a more complete rundown of which formats will be a no-go in Apple’s pro video apps in the near future, visit Apple’s support page dedicated to incompatible media in FCP X.

Note that the lack of MacOS support for these formats does not make them obsolete on the Mac, since third-party applications may have 64-bit support built in. For example, users will still be able to work with DNxHD and DNxHR files in Avid Media Composer and other Mac-compatible programs that support those files natively, rather than relying on the QuickTime framework.

Users who prefer to stick with FCP X can manually identify the format of individual clips or have FCP scan their libraries to find candidates for conversion. Original files will be moved to an “Incompatible Media” folder, not deleted, Apple said.

Along with the new seek-and-transcode conversion options, FCP X 10.4.6 has a number of fixes for interface issues and “improved reliability” for YouTube sharing. See Apple’s release notes below.

New in Final Cut Pro 10.4.6

Released March 21, 2019

  • Detects media files that may be incompatible with future versions of macOS after Mojave and converts them to a compatible format.
  • Fixes an issue that could cause share destinations to disappear from the share menu after quitting Final Cut Pro.
  • Fixes an issue that could cause the workflow extension button to disappear when resizing the interface.
  • Fixes an issue in which the Select Clip command could incorrectly select the clip beneath the playhead.
  • Fixes an issue in which a successful share notification appears after the share operation was cancelled.
  • Fixes an issue in which frames saved to the frame browser in the Comparison Viewer may appear differently than they do in the viewer.
  • Fixes an issue in which frequency information for Hum Removal may not be visible in the audio inspector.
  • Fixes an issue in which relinked media may appear with black thumbnails in the browser and timeline.
  • Fixes an issue in which the share menu may be obscured behind the viewer when using Final Cut Pro in fullscreen mode
  • Improves reliability when sharing video to YouTube.

Get complete step-by-step how-to instructions and information on all features in Final Cut Pro X. For a list of recent enhancements in Final Cut Pro X, refer to What’s New in Final Cut Pro X.

Apple Final Cut Pro X Support: