Mac System Software 4.2a4

4.2a4
Build of Mac System Software 5.x
MacOS-4.2a4-Desktop.png
Architecture68k
Compiled1987-08-07
Timebomb
Works in
AboutMacOS-4.2a4-About.png

Mac System Software 4.2a4 is an early beta build of Mac System Software 5.x, which was shared on 12 September 2022.

New features and changes[edit | edit source]

This build features a new design for the about box. It now additionally includes information about the used memory, separated by system and applications. The version number of Finder was added as well alongside the one of the system. It was later ported to Mac System Software 3.4.

Gallery[edit | edit source]

  • Setup

    Setup

  • Boot screen

    Boot screen

  • Finder version

    Finder version

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