System Software Requirements
----------------------------
HyperCard 2.2 requires Macintosh System Software version 6.0.5 or later, or
A/UX version 2.0 or later.
Using HyperCard 2.2 Stacks With Earlier HyperCard Versions
----------------------------------------------------------
None of the new features of HyperCard 2.2 can work under earlier versions of
HyperCard.
WARNING: If under versions of HyperCard earlier than 2.2 you compact a 2.2
stack that contains non-HyperTalk scripts, the non-HyperTalk scripts are likely
to be deleted, causing the stacks to behave in unexpected ways.
OSA Compatibility
-----------------
For features related to Apple Open Scripting Architecture (OSA), you'll need
Macintosh System Software version 7.0 or later -- and the AppleScript
extension.
AppleScript Requirements
------------------------
For AppleScript-related functionality, you'll need:
* System Software 7.0 or later
* AppleScript 1.1
For component-related functionality, you'll need:
* QuickTime 1.6 or System Software 7.1
Article Change History:
24 December 1993 - deleted Apple Events Manager requirement,
revised "Earlier HyperCard Versions" section