Version 16.01 is now available for download. We added two big new features for this release: clip speed and chroma key! Here is the full list new things:
All of the new video filters are intended to facilitate chroma keying; however, the Alpha Channel filters do have some general usefulness outside of keying. Please note that “Alpha Channel: View” is not really intended to be an effect that gets baked into your rendered and encoded output. You can leave it in the filter list, but toggle the filter by clicking the checkbox or double-clicking its name in the list of attached filters to turn it off. “Key Spill” is also know as “color spill” and “spill suppression,” and it refers to the background color bleeding into the foreground. None of these new video filters can utilize GPU-processing at this time; however, they do support multi-core rendering when Settings > Realtime is turned off or when exporting. You can use them in conjunction with GPU processsing; they just will not take advantage of the speed and quality the GPU mode provides.
Regarding speed control, it is a simple frame-drop/-duplicate approach. It does not attempt to do any frame-blending or advanced optical flow analysis. Now, with that said, you can get nice results slowing down high frame-rate footage. However, you must ensure that your project is running at a typical 24 - 60 fps because Settings > Video Mode > Automatic may otherwise adopt the clip’s frame rate. (In automatic mode, the project is based on the first item you add to the playlist or timeline or on the opened clip if playlist or timeline is not used.)