It’s always nice to keep a record of changes. For a complete report, you can check the commit log. Alternatively, here’s a simplified list:
2026-06-06
- Extended audio section and information about CD-ROM XA.
2026-06-01
- Corrected and expanded CD section, thanks Jellema.
2025-07-07
- Overall improvements to prepare for a book release.
2024-01-30
- Expanded information about the SH-2
2022-01-26
- Added explanation on how the CD medium works, thanks @david4599
2022-01-26
- Added CPU history
- Added Operating System section
- Expanded Anti piracy section
- Expanded Graphics section
2021-05-04
- Corrected info about VDPs pipeline and audio channels, thanks @fafling, @XL2 and @TrekkiesUnite118 from SegaXtreme
- Improved sources format
- Expanded audio section
- Updated motherboard and diagram
- Added mention of the Communication Connector
2020-04-10
- New sub-section explaining the visibility problem
2020-04-08
- New memory section, thanks /u/EmeraldNovaGames.
- Added more content to the CPU section, thanks Ponut64 from Sega Xtreme.
2020-04-07
- Small corrections, thanks /r/SegaSaturn.
2020-02-18
- Improved some explanations.
2019-10-30
- Added 3d models.
2019-09-17
- Better wording.
2019-09-17
- Added a quick introduction.
2019-08-27
- Corrected some explanations.
2019-08-09
- Improved wording.
2019-08-03
- Ready for publication.