Inform 5

Inform 5
Authoring system
[[File:|class=ifwiki-infobox-image]]
Link
Developer	Graham Nelson
Format	Z-code
Interaction style	Parser
System
System details
Latest version	13 June 1994
Status	Unmaintained
Implements
Uses
Multimedia support
License
Notes	See also: Inform.
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Inform 5 (now explicitly called that) was announced in June, although it was released slightly earlier:

 From: Graham Nelson
 Subject: Inform 5: An Open Secret
 Date: 13 Jun 94 15:16:02 BST
 Message-ID: <1994Jun13.151602.23671@oxvaxd>
 
 It's an increasingly open secret that the new release of Inform,
 Inform 5 [fanfare, flourish of trumpets, etc.]  has been sitting
 in the incoming/if-archive directory of ftp.gmd.de for a fortnight
 or so.
 
 Many people have already discovered it and sent me objections, as
 a result of which I've today posted an updated version.  So, having
 already lost the element of surprise, can I encourage porters and
 other interested Inform people to take a look, and see if the code
 can be compiled properly on different machines?
 ...
 (Usenet post via Google)

Inform 5 was a sufficiently major advance that subsequent releases were called "Inform 5.1", "Inform 5.2", etc. -- until the release of Inform 6.