The latest update for Capture One 20 is now available, and more cameras got support.

When Fujifilm owners get their brand new cameras, they’ll be delighted to know about the latest Capture One 20 update. The software will give support for both the X-T4 and the X100V. But in addition to that, there are a few bug fixes that have come. Even better, new lens support is also here. That means specifically that the RAW support will be there as will the film simulation support.
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https://www.thephoblographer.com/2020/03/03/capture-one-20-now-supports-the-fujifilm-xt4-and-fujifilm-x100v/