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Tcl/Tk 8.5.7

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Tcl/Tk 8.5.7 Release Announcement
April 10, 2009

The Tcl Core Team is pleased to announce the 8.5.7 releases of the Tcl
dynamic language and the Tk toolkit.  This is the seventh patch release
of Tcl/Tk 8.5.  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 8.5.7 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 8.5.6:

The following were the main changes in Tcl/Tk 8.5.7.  A complete list
can be found in the changes file at the root of the source tree.  The
more complete ChangeLog is also included with each source release.  This
is a patch release, so it primarily includes bug fixes and corrections
to erratic behavior.  Below are only the most notable changes.
   * Enbeddable CoreFoundation notifier on Darwin.

   * Improved compat support in [load] on Darwin.

   * Restored Tk_CreatePhotoImageFormat compat with aMSN.

   * Stopped blurry large fonts on Vista.

   * New version 1.0.3 of platform package:
     - more details in identifiers for Darwin

   * New version 2.7.3 of http package:
     - fixes connect failure when partial lines returned

   * New version 2.3.1 of tcltest package:
     - removes several unsafe [eval]s

   * Menu image display fixes.

   * Fixed crash in Tk_MakeWindowExist() seen with gitk.

   * Fixed [file pathtype] on volumerelative paths.

   * Extended virtual events to work when Caps Lock is on.

   * Stopped memory leak in [file normalize].

   * Fixed crash on exit with [chan create]d channels.

   * Prevent crashes overflowing max string lengths.

   * Improved support for MSVC builds on _WIN64 systems.

Tcl Core Team and Maintainers
Don Porter, Tcl Core Release Manager