The character has been modeled and rigged using AutoRig Pro Addon in Blender 3.0.

So, you can use the character in Blender 3.0 and up.

In this product file, you will get:

+ A Rigged Stylized Boy with full body, eyes, mouth, teeth, tongue, hair, clothes, shoes

With Subsurface = 0: Vertices = 164,121 ; Faces = 158,715