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Note: Tcl/Tk 8.2 is recommended over Tcl/Tk 8.1

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New Tcl/Tk 8.1 Features

Tcl/Tk 8.1 provides significant new functionality. The major new features are:

  • Thread-safety now allows developers to use Tcl and to get the benefit of rapid scripting in high-performance multi-threaded applications. Please see our "How to" guide to the thread model.
  • Internationalization allows for fast localization of applications worldwide by supporting Unicode. Please see our "How to" guide to Internationalization.
  • All new, expanded regular expression package adds powerful new features and supports pattern matching on Unicode strings. Best of breed! Please see our "How to" guide to new regular expression features.
  • Improved Extension Architecture allows extensions to be used in a wider variety of applications
  • And other new and important features
    Send/DDE support, configuration options, more Tcl_Obj support, etc
More details and reference information about the new Tcl/Tk features.

Supported Platforms

Tcl/Tk 8.1 is compatible with most releases of the following operating systems:

  • Windows 95 and 98
  • Windows NT
  • Solaris and SunOS
  • Linux
  • HP-UX
  • SGI
  • IRIX
  • Digital Unix
  • AIX
  • SCO Unix
  • NetBSD, FreeBSD, BSDi
  • Most other Unix-like operating systems
  • Macintosh (68K and Power Mac)

Tcl/Tk Praise

Tens of thousands of developers have downloaded Tcl/Tk 8.1. Here are just a few examples of the very positive feedback we have received on the new features in Tcl/Tk.

    AOL's Digital City
    "We are thrilled that Scriptics has added multi-threading to Tcl. Digital City uses Tcl to reach 4.5 million people each month and performance is a very important issue."

    Cygnus Solutions
    "With Tcl, we released a fully Japanese version of Source-Navigator in months less time than it would have taken without it. Tcl did almost all the engineering work of internationalization for us."

Technical Support

Scriptics will provide limited free support to the Tcl community for current Tcl/Tk releases. All Tcl users can submit bugs through our Web form. We maintain a database of Tcl/Tk bugs and make our best effort to fix bugs and incorporate contributed patches.

Scriptics also offers a range of commercial grade Tcl/Tk technical services, including telephone, Web and email support. Standard support is available in incident packs and annual service contracts. Premium support is only available with an annual service contract. Customized options are also available.

For more information about support for Tcl/Tk releases, check out our Tech Support web site.

For More Tcl Information

The Tcl user community is a great resource for all Tcl developers. Explore the areas below to get more information on how people use Tcl, as well as in depth technical information from experts.

Download Tcl/Tk 8.1!