The following history of the AmigaOS 4 dispute documents the legal battle mainly between the companies Amiga, Inc. and Hyperion Entertainment over the operating system AmigaOS 4. On 30 September 2009, Hyperion and Amiga, Inc. reached a settlement agreement where Hyperion was granted an exclusive, perpetual and worldwide right to distribute and use 'The Software', a term used during the dispute and subsequent settlement to refer to source code from AmigaOS 3 and earlier, and ownership of AmigaOS 4.x and beyond.(See also: Amiga and History of the Amiga)
