You must buy an official AmigaOS 3.2 package from licensed distributors (such as Amiga Kit, Alinea Computer, or Retroami). This kit includes the physical CD-ROM containing all digital files and the legal right to use the corresponding ROMs.
Amiga Kickstart 3.2.2 represents a significant revitalization of the Amiga platform, offering native support for modern storage sizes, visual improvements, and stability fixes long sought by the community. amiga kickstart 3.2.2 download
However, with a (hardware module) on real Amigas, you can toggle between 1.3, 3.1, and 3.2.2. In emulation, you simply load the correct ROM per session. You must buy an official AmigaOS 3