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From: Porter, Don <dona...@nist.gov>
Wed, 12 Nov 2014 03:35:46 +0000
Tcl/Tk 8.6.3 Release Announcement

November 12, 2014

The Tcl Core Team is pleased to announce the 8.6.3 releases of the Tcl

dynamic language and the Tk toolkit.  This is the third patch release

of Tcl/Tk 8.6.  More details can be found below.  We would like to

express our gratitude to all those who submit bug reports and patches.

This information is invaluable in enabling us to identify and eliminate

problems in the core.

Where to get the new releases:


Tcl/Tk 8.6.3 sources are freely available as open source from the

Tcl Developer Xchange web site at:


This web page also contains additional information about the releases,

including new features and notes about installing and compiling the

releases.  Sources are always available from the Tcl SourceForge

project's file distribution area:


Binaries for most major platforms are available from:


For additional information:


Please visit the Tcl Developer Xchange web site:


This site contains a variety of information about Tcl/Tk in general, the

core Tcl and Tk distributions, Tcl development tools, and much more.

Summary of Changes since Tcl/Tk 8.6.2:


This is a patch release, so it primarily includes bug fixes and corrections

to erratic behavior.  All relevant bug fixes (and some more) up to and

including 8.5.17 changes are included in 8.6.3.  Highlighted changes are

noted below.  The changes file at the root of the source tree contains

a more complete list.  The Timelines of all changes are online.



   * [TIP 432] Updated file dialogs on Windows.

   * Restore ability to read again from a channel after EOF.

   * Incompatible result from [lreplace {} 1 1].

   * Incompatible result from [lappend foo].

   * Incorrect result from [regsub -all {\(.*} a(b) {}].

   * Restore ability to [open comX: r+].

   * Fixed [scale] handling of negative resolution values.

   * Fixed crashes in...

- [oo::class destroy].

- [apply {{} {try {} on ok {} - on return {} {}}}].

- improperly optimized [expr]ession bytecode.

- [array set] of a traced array.

- [scale .s -digits $tooBig].

   * Bytecode optimized for [string cat].

   * Support for Windows 10.


Tcl Core Team and Maintainers

Don Porter, Tcl Core Release Manager?

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Porter, Don Nov 12, 2014 03:35 am