It's only a year overdue but I've been busy with too many things.
- New GIF features (see README or man pages)
- New (and newly documented) thumb mode features.
- Fixed missing modification date/time on Windows.
- Upgraded all libraries (Nuklear, stb_image, etc.) removed unnecessary ones.
- Many more fixes and features I'm forgetting.
Try it out, try to break it, and create issues for anything you find or suggestions for improvements.
Enjoy!