libvips, the library behind sharp, has just released version 8.18.0: https://www.libvips.org/2025/12/04/What's-new-in-8.18.html

It includes support for UltraHDR (HDR and SDR in one JPEG file), camera RAW images, and the Oklab colourspace. This should all be coming to sharp in the next six month or so.