Darktable 3.8 comes with major changes like a completely revamped keyboard shortcut system with support for controlling the app with other devices, such as game controllers or MIDI devices, a new diffuse or sharpen module that lets users simulate or revert diffusion processes to reconstruct images, as well as a new scene-referred blurs module that lets you accurately synthesize motion and lens blurs.
Other major changes include support for multiple images in the print view, Aa new LMMSE demosaic algorithm, support for the Canon CR3 RAW image format, and the global availability of the composition guides from the crop module across the entire app.