We now have a native (not using Rosetta 2) build working on Apple M1 devices! This is not yet a universal app, maybe later in the year for that. Get shotcut-macos-ARM64-210413.dmg.

Time Remapping and Speed Ramping!

To use it you must choose a clip with NO B-frames (that is a video encoding terminology). If you try to use it on a such clip you will be blocked by a dialog asking you to Convert to Edit-friendly....

After that, it is basically Filters > Time > Time Remap > Keyframes. Go to this forum post for more usage information.

Changes For Time Remap

Since previous beta v21.03.13:

Improved the audio quality.
Added Enable pitch compensation.
Added Input Time and Output Time status fields.

Other Fixes

Everything from latest stable release 21.03.21 plus:

Upgraded FFmpeg to version 4.3.2
Upgraded Rubberband (pitch) to version 1.9.1
Upgraded MLT (engine) to pre-release version 7.0.0
Improved the color accuracy of the video preview.
Fixed a custom export preset may not include attributes of the video mode
Fixed video glitches using multiple Text: Rich filters with Export > Video > Parallel processing.
Fixed Undo after using the ripple trim in shortcut (broken in v21.03).
Fixed applying a custom preset for the Contrast video filter.
Fixed the Timeline ruler may be incorrect after starting a new project in the same session.
Fixed some filters may get lost after Undo a Split operation.
Added a context menu to Text: Simple and all numeric spinners (broken in v21.02).
Converted all numeric text fields in filters to spinners.
Fixed changing Properties on a timeline clip moved to another track overwrites Playlist items.
Fixed Properties > Repeat for an image sequence.
Fixed a crash changing the Size, Position & Rotate after applying a shake preset.
Fixed a possible deadlock changing Properties > Speed when Video Mode is NOT Automatic.
Fixed disabling keyboard shortcuts for disabled filter trimming and simple keyframe actions.
Do not let a keyframe be placed beyond the end of a clip.
Fixed PNG and GIF as album art in music or poster image (previously only JPEG).
Reduced memory in audio resampler per clip.