Inform version history

The history of releases of the Inform programming language for interactive fiction dates back to 1993. The Inform 6 compiler and Library have always been separately maintained and released.

Original Inform Compiler Version	Library Release	Inform 7 System Version	Date	Reference	Notes
1			May 9, 1993	[1]	Simultaneous release of Curses.
2			June 9, 1993	[2]
3			November 1993	[2]
4			January 1994	[2]
5			June 1994	[2]
5.5			June 1995		Last of the pre-Inform 6 releases.
6	6/1		April 29, 1996	[3]	beta release. Inform is rewritten from scratch.
6.02			May 5, 1996	[4]	beta release
6.03			May 13, 1996	[5]	beta release
6.04	6/2		September 1996	[2][6]
6.05			September 1996	[7]
6.10	6/3		December 18, 1996	[8]
6.11	6/4		January 28, 1997	[9]
6.12			March 26, 1997	[10]
6.13	6/5		April 5, 1997	[11][12]
	6/6		August 18, 1997	[13]
	6/6		August 19, 1997	[14]	Rerelease with tracing code removed
	6/7		September 1997	[6]
6.14			September 8, 1997	[15]
6.15			March 23, 1998	[16]
6.20			December 1996	[7]
	6/8		December 13, 1998	[17]
6.21	6/9		April 29, 1999	[18]
			April 29, 1999	[19]	Announcement of upcoming Glulx support
	6/10		November 6, 1999	[20]	Original release
	6/10		November 13, 1999	[21]	Bugfix release
6.21.1			November 24, 2000
6.21.2			August 15, 2000
6.21.3			November 6, 2002		Included support for Glulx
6.21.4			June 17, 2003
6.30	6/11		February 4, 2004	[22]
6.30.1			February 27, 2004
6.30.2			June 6, 2004
6.31			February 10, 2006	[23]
	6/10N	3K27	April 30, 2006	[24][25]	Public beta
		3K56	May 4, 2006	[25]
		3L95	May 14, 2006	[25]
		3M43	May 21, 2006	[25]
		3P53	June 9, 2006	[25]
		3R85	June 26, 2006	[25]
		3T38	July 10, 2006	[25]
	6/11N	3V01	August 2, 2006	[25]	Preliminary Glulx support for Inform 7
		3Z95	September 14, 2006	[25]
		4B91	November 10, 2006	[25]
		4F59	December 21, 2006	[25]
		4K40	January 23, 2007	[25]
		4K41	January 23, 2007	[25]	Bugfix for Mac OS X on G4 and G5 processors
		4S08	March 25, 2007	[25]	Fixed many bugs, incorporates ideas from external consultation, and adds preliminary Linux support
		4U65	April 27, 2007	[25]
		4U67	May 7, 2007	[25]	Mac OS X only release
		4W37	July 27, 2007	[25]
		4X60	August 24, 2007	[25]
		5G67	November 10, 2007	[25]	First release with an official GUI for Linux
		5J39	December 1, 2007	[25]
		5T18	April 30, 2008	[25]
		5U92	September 10, 2008	[25]
		5Z71	April 18, 2009	[26]
		6E59	June 12, 2010	[26]
		6E72	July 1, 2010	[26]
		6F95	October 25, 2010	[26]
		6G60	December 23, 2010	[26]
		6L02	4 May 2014	[26]
		6L38	30 August 2014	[26]

The "N" series libraries are modified versions of the regular Inform 6 libraries with special support for Inform 7. The first modified version, 6/10N, was actually based on parts of 6/9 as well as 6/10. The goal is to eventually merge the "N" series into the main series, producing one library that can be used with both Inform 6 and Inform 7, compiling to both Z-code and Glulx.

Notes

1. Graham Nelson (May 9, 1993). "Announcement: INFORM Announcing "Inform", an Infocom-format compiler: ================================================". Newsgroup: rec.arts.int-fiction Check |newsgroup= value (help). Usenet: [e-mail]. Retrieved July 3, 2007.
2. Firth, Roger. "When did Inform appear?". Inform 6: Frequently Asked Questions.
3. Graham Nelson (April 29, 1996). "Announcing Inform 6". Newsgroup: rec.arts.int-fiction Check |newsgroup= value (help). Usenet: 1996Apr29.085915@oxvaxd. Retrieved July 3, 2007.
4. Graham Nelson (May 5, 1996). "Announcing Inform 6.02". Newsgroup: rec.arts.int-fiction Check |newsgroup= value (help). Usenet: 1996May5.174649@oxvaxd. Retrieved July 3, 2007.
5. Graham Nelson (May 13, 1996). "Announcing Inform 6.03". Newsgroup: rec.arts.int-fiction Check |newsgroup= value (help). Usenet: 1996May13.115848@oxvaxd. Retrieved July 3, 2007.
6. "Index: if-archive/infocom/compilers/inform6/library/old". The Interactive Fiction Archive. Retrieved July 3, 2007.
7. "Index: if-archive/infocom/compilers/inform6/source/old". The Interactive Fiction Archive. Retrieved July 3, 2007.
22. Inform – Welcome – Software
23. Index: if-archive/infocom/compilers/inform6/source
25. "Change log for Inform 7". Retrieved January 24, 2009.
26. "Change History for Inform 7". Retrieved May 30, 2012.