Extended Object Tcl (for short: XOTcl, pronounced exotickle) is an object-oriented scripting language based on Tcl. It was originally designed for providing language support for design patterns and provides novel constructs such as filters or transitive mixin classes. The language is designed for empowering rather than constraining system developers. The basic object model is highly influenced by CLOS.

XOTcl is contained in the Industry-standard Tcl distribution ActiveTcl, which is available for several platforms, it is part of the Batteries Included Distribution for Mac OS X and it is shipped as part of the developer support for Mac OS X Tiger.

On this site you can find the following information:

• Find a brief description of the XOTcl functionalities here: [What is XOTcl?]
  
• A list of publications regarding XOTcl and related topics: [Publications]
  
• The online manuals of XOTcl: [Manuals]
  
• Some applications of XOTcl and some screen-shots: [Applications]
  
• Download and installation guide: [Download]
  

News

• Jan 01, 2015 XOTcl 2.0.0 released (See Next Scripting Website for announcement and further releases)
• Apr 29, 2014 XOTcl 1.6.8 released (Announcement, Changes)
• Nov 3, 2011 XOTcl 1.6.7 released (Announcement)
• Apr 8, 2010 XOTcl 1.6.6 released (Announcement)
• Nov 13, 2009 XOTcl 1.6.5 released (Announcement)
• Oct 17, 2009 XOTcl 1.6.4 released (Announcement)
• Mar 19, 2009 XOTcl 1.6.3 released (Announcement)
• Nov 02, 2008 XOTcl 1.6.2 released (Announcement)
• Jun 24, 2008 XOTcl 1.6.1 released (Announcement)
• Feb 24, 2008 XOTcl 1.6.0 released (Announcement)
• Oct 12, 2007 XOTcl 1.5.6 released (Announcement)
• Sep 18, 2007 XOTcl 1.5.5 released (Announcement)
• Aug 14, 2007 XOTcl 1.5.4 released (Announcement)
• Nov 25, 2006 XOTcl 1.5.3 released (Announcement)
• Sept 29, 2006 XOTcl 1.5.2 released (Announcement)
• Sept 22, 2006 XOTcl 1.5.1 released (Announcement)
• Sept 14, 2006 XOTcl 1.5.0 released (Announcement)
• Feb 18, 2006 XOTcl 1.4.0 released (Announcement)
• Dec 09, 2005 XOTcl 1.3.9 released (Announcement)
• Oct 02, 2005 XOTcl 1.3.8 released (Announcement)
• Mar 17, 2005 XOTcl 1.3.6 released (Announcement)
• Jan 15, 2005 XOTcl 1.3.5 released (Announcement)
• Dec 03, 2004 XOTcl 1.3.4 released (Announcement)
• Aug 26, 2004 XOTcl 1.3.1 released (Announcement)
• Aug 17, 2004 XOTcl 1.3.0 released (Announcement)
• Feb 21, 2004 XOTcl 1.2.0 released (Announcement)
• Dec 13, 2003 XOTcl 1.1.1 released (Announcement)
• Nov 29, 2003 XOTcl 1.1.0 released (Announcement)
• Mar 21, 2003 XOTcl 1.0.2 released (Announcement)
• Dec 23, 2002 XOTcl 1.0.1 released (Announcement)
• Nov 08, 2002 XOTcl 1.0 released (Announcement)
• Apr 09, 2002 XOTcl 0.9.4 released (Announcement)
• Dec 17, 2001 XOTcl 0.9.3 released (Announcement)
• Oct 21, 2001 XOTcl 0.9.1 released (Announcement)
• Oct 15, 2001 XOTcl 0.9 released (Announcement)
• Aug 13, 2001 XOTcl 0.85.3 released (Announcement)
• July 13, 2001 XOTcl 0.85-p2 released
• May 22, 2001 XOTcl 0.85 released (Announcement)
• Mar 09, 2001 XOTcl 0.84 released
• Nov 30, 2000 XOTcl 0.83 released
• Oct 08, 2000 XOTcl 0.82 released
• Jun 15, 2000 XOTcl was presented at the EuropeanTcl User Meeting (slides)
• Jun 07, 2000 XOTcl Version 0.81 and Actiweb Preview released
• Feb, 2000 XOTcl presented at USENIX Tcl/Tk Conference (see publications)