Macintosh pre-releases here:

helloisthispizzahut

I have some pre-releases from System 4 to Mac OS 9.2.1 which need to be uploaded in the library. They also need to have their own wiki page on BetaWiki if they do not have them yet.

Macintosh System Software 4.0b4, compatible with Macintosh SE FDHD - https://archive.org/details/system-4.0b-4.7z
Macintosh System Software 4.2a4 (Build of System 5.0) - https://archive.org/details/system-4.2a-4.7z
Macintosh System Software 6.0a9 - https://archive.org/details/juggler-disk-6.0a-9
Macintosh System Software 6.0b2 - https://archive.org/details/system-tools-6.0b-2
Macintosh System Software 6.0.3b3 - https://archive.org/details/6.0.3b-3
Macintosh System Software 6.0.5b3 - https://archive.org/details/system-6.0.5b-3.7z
Macintosh System Software 6.0.6a15 - https://archive.org/details/system-6.0.6a-15
Macintosh System Software 7.1P - https://archive.org/details/utilities_202210
Macintosh System Software 7.1P5 - https://archive.org/details/utilities_20221008
Macintosh System Software 7.1P6 - https://archive.org/details/mssw71p6
Macintosh System Software 7.5a8c4 (incomplete, disk tools only) - https://archive.org/details/system-7.5a8c4DT
Macintosh System Software 7.5.1P (Macintosh Performa 630CD) - https://archive.org/details/mac-performa-630-cd
Macintosh System Software 7.5.3d3c2 - https://archive.org/details/system-7.5.3d-3c-2
Macintosh System Software 7.5.4b4 - https://archive.org/details/system-7.5.4b-4
Mac OS 7.6.1a9 - https://archive.org/details/mac-os-7.6.1a-9-update
Mac OS 8.0b2 - https://archive.org/details/mac-os-8.0b-2
Mac OS 8.0f4c1 - https://archive.org/details/mac-os-8.0f-4c-1
Mac OS 8.6a5 - https://archive.org/details/8.6a-5
Mac OS 8.6b9 - https://archive.org/details/8.6b-9
Mac OS 8.7a3 - https://archive.org/details/mac-os-8.7a-3
Mac OS 8.7a4 - https://archive.org/details/8.7a-4c-2
Mac OS 8.7b3 - https://archive.org/details/8.7b3
Mac OS 9.0b4 - https://archive.org/details/mac-os-9.0b-4-sealed
Mac OS 9.0b6c3 - https://archive.org/details/mac-os-9.0b-6c-3
Mac OS 9.0b7 - https://archive.org/details/mac-os-9.0b7
Mac OS 9.1b3c4 - https://archive.org/details/b3c4_20220818_202208
Mac OS 9.1f6 - https://archive.org/details/9.1f-6
Mac OS 9.1f9c2 - https://archive.org/details/9.1f-9c-2
Mac OS 9.2d8 - https://archive.org/details/mac-os-9.2d-8
Mac OS 9.2a4 - https://archive.org/details/9.2a-4-1
Mac OS 9.2f3c4 - https://archive.org/details/mac-os-9.2f-3c-4
Mac OS 9.2f6 - https://archive.org/details/mac-os-9.2f-6c-3
Mac OS 9.2.1f6 - https://archive.org/details/mac-os-9.2.1f-6