Gimp 3.0 on its way!
The interface is reworked, icons are now updated and compatible with HiDPI screens (through vectorial images).
The color handling is reworked from the ground up.
The public API is now stable and documented.
The filters are not desctrutible anymore.
Support of BMP 64 bits and TIFF files.
New Filters: Inner Flow, Bevel and GEGL styles.
More translations.

See GIMP 3.0 RC 1 post: https://www.gimp.org/news/2024/11/06/gimp-3-0-RC1-released/

(via Korben https://korben.info/gimp-3-0-rc1-nouvelle-interface-et-fonctionnalites-avancees.html)