The SCUMM language is a LucasArts in-house standard. The format was never designed to be public and so would change unpredictably from game to game to suit the task at hand. Therefor, many different SCUMM Versions exist today.
The first LucasArts adventure games used an unknown format that is now lost with time. We will ignore it because it wasn't really SCUMM as we know it know, wasn't very good, anyway, and only worked on the Commodore 64. The first PC versions started with V2 and a variation of the V1 format.
With Indiana Jones and the Last Crusade, LucasArts developed a modular file format based loosely on the standard IFF format. This was used several times in various forms until The Secret of Monkey Island, where the SCUMM engine and file format was redesigned from scratch. The new format was used from then on, and vestiges of it are still visible in the latest LucasArts games such as Grim Fandango.
The information presented here is based on http://scumm.mixnmojo.com/?page=games, http://www.scummvm.org/docs/specs/introduction.php and on http://scumm.mixnmojo.com/?page=specs&file=scuminfo.txt.
|1||1987||Maniac Mansion (original)|
|1||1988||Zak McKracken and the Alien Mindbenders (original)|
|2||1988||Maniac Mansion (enhanced)|
|2||1988||Zak McKracken and the Alien Mindbenders (enhanced)|
|3||1989||Indiana Jones and the Last Crusade|
|3||1992||Zak McKracken and the Alien Mindbenders (FM-TOWNS)|
|3.0.22||1990||Indiana Jones and the Last Crusade (256)|
|3.5.40||1990||LOOM (alt. version)|
|4.0.62||1990||PASS (LOOM, Indy3, MI1 DEMO)|
|4.0.67||1990||The Secret of Monkey Island (EGA)|
|5.0.12||1990||The Secret of Monkey Island (???)|
|5.0.19||1990||The Secret of Monkey Island (VGA Floppy)|
|5.1.42||1992||LOOM (256 color CD version)|
|5.2.02||1991||Monkey Island 2: LeChuck's revenge|
|5.2.20 (?)||1992||Indiana Jones 4 and the Fate of Atlantis (Disk ?)|
|5.2.28cd||1996||Monkey Island 2: LeChuck's revenge (CD)|
|5.3.06||1996||The Secret of Monkey Island (VGA CD)|
|5.5.00||1993||Indiana Jones 4 and the Fate of Atlantis (CD Talkie)|
|5.5.02 (?)||1995||Indiana Jones 4 and the Fate of Atlantis (DEMO)|
|5.5.20 (?)||???||Indiana Jones 4 and the Fate of Atlantis (? might be a wrong entry)|
|6.3.0||1993||Sam & Max (DEMO)|
|6.3.9||1993||Day Of The Tentacle (DEMO)|
|6.4.2||1993||Day Of The Tentacle|
|6.5.0||1993||Sam & Max (Disk)|
|7.0.2||1993||Sam & Max (CD)|
|7.3.2||1994||Full Thottle (DEMO)|
|8.0.0||1997||Curse of Monkey Island (DEMO)|
|8.1.0||1997||Curse of Monkey Island (DEMO)|
|8.1.0||1997||Curse of Monkey Island|