Support for 4K video source content has become fairly standard in video editing software, and pro software already supports up to 8K, which isn't practical unless you're running a full-size movie theater. That said, even some smartphones, like the Samsung Galaxy S21 Ultra 5G (which I recently upgraded to), now can shoot in 8K. The support for 4K and higher formats varies among the consumer products. For example, some but not all the applications can import Sony XAVC and XAVC-S formats, which are used by Sony's popular DSLRs, mirrorless cameras, camcorders, and professional video cameras. The same holds true for the H.265 High Efficiency Video Coding (HEVC) standard. Most of the applications here now can import and export HEVC, but there are still a few holdouts. If you plan on working with 4K or higher video content, make sure you choose a video editing application that's fast at rendering output files (see the section on speed testing below). Support for newer formats, such as the open-source AV1 and the even more efficient H.266 (VVC—Versatile Video Coding), is very limited at this point, with only DaVinci Resolve supporting AV1 at this point. Furthermore, none of the apps included here supports H.266. Happily, several of them do support importing Google's relatively new WebM format.