| 15 Jan 2019 | Add link to Dan Weavers Stony Brook Pascal port. Add distribution tape images. |
| 27 Dec 2017 | Add link to XPL to C port of PDP-10 compiler. |
| 8 Dec 2017 | Add link to Wikipedia entry for XPL . |
| 5 Dec 2017 | Add link to XPL to C translator . |
| 21 Jun 2004 | Correction: Site of 1968 FJCC. |
| 13 Feb 2003 | New references: Karger. New Resources: XPL for S/390. |
| 10 Sep 2002 | New references: Sitton, Kendrick, and Carrick; Slimick; Storm and Polk. |
| 14 Aug 2002 | Added link to PDP-10 and DECSystem-20 ports. |
| 19 Apr 2002 | Restored broken link to DOS XPL port. |
| 12 Mar 2002 | Website moved to cs.toronto.edu. |
| 17 Dec 2001 | Added "what XPL is not". |
| 5 Jun 2001 | Added Language Description. |
| 14 May 2001 | Added Table of Contents. |
| 10 May 2001 | Added BNF for XPL. |
| 2 May 2001 | Added reconstruction of SHARE distribution. |
| 14 Mar 2001 | Added link to Stonybrook Pascal |
| 14 Feb 2001 | Added description of
XPL Translator Writing system
Added changelog. |