> AmigaOS 3.1 or any other version of AmigaOS (except 4) is not mentioned in the whole settlement.

AmigaOS 3.1 is mentioned 3 times in the settlement agreement:

#1: ""Software" means Amiga OS 3.1, which is the Operating System (including without limitation its Software Architecture as described in the Documentation) originally developed, owned and marketed by Commodore Business Machines (CBM) for their Amiga line of computers in 1994."

#2: "Right to develop and distribute Amiga OS 3.9 upgrade of Amiga OS 3.5 (itself an upgrade of OS 3.1). Amiga considers this agreement terminated, but Haage & Partner may not."

(This even has a mention of AmigaOS 3.5 and 3.9.)

#3: "ITEC LLC assigns its full interest under the identified financing statement to the software known as Amiga OS 3.1, which is the Operating System (including without limitation its Software Architecture as described in the Documentation) originally developed, owned and marketed by Commodore Business Machines (CBM) for their Amiga line of computers in 1994."

See comment #811 for a quote of the mention of "AmigaOS 5".

> AmigaOS 4 Classic [...] precipitated the lawsuit

AmigaOS 4.0 Classic was released 7 months after the begin of the lawsuit.