That’s 3.7.0 (the number is visible in the upper-left corner of the picture). You should be able to get old Luban versions from this stickied thread in the Luban section of the forum: Snapmaker Luban Downloads and Updates
That’s 3.7.0 (the number is visible in the upper-left corner of the picture). You should be able to get old Luban versions from this stickied thread in the Luban section of the forum: Snapmaker Luban Downloads and Updates