ENG. Ultimate Unwrap 3d is one of the most used standalone software for UV mapping setup. The new version 3.50.16 includes:

ITA. Ultimate Unwrap 3d è uno dei più utilizzati software standalone per il setup del UV mapping. La nuova versione 3.50.16 include:

NEW: Added a preference option to flush undo on loading and saving.
NEW: Added a plugin for importing and exporting FBX 2017 files.
Updated 3D mirror copy selection tool.
Added a fix for expanding pixel borders when repainting.
Added a fix to export 32-bit PNG files when repainting.
NEW: Tutorial for Repainting Seams.

Link: Ultimate Unwrap