Tcl/Tk 8.5.15 Release Announcement
September 18, 2012

The Tcl Core Team is pleased to announce the 8.5.15 releases of the Tcl
dynamic language and the Tk toolkit.  This is the fifteenth 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 8.5.15 sources are freely available as open source from the
Tcl Developer Xchange web site at:

        http://www.tcl.tk/software/tcltk/8.5.html

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:

	http://sourceforge.net/projects/tcl/files/

Binaries for most major platforms will be available from:

        http://www.activestate.com/Tcl

For additional information:
---------------------------

Please visit the Tcl Developer Xchange web site:

        http://www.tcl.tk/

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 8.5.14:
--------------------------------------

The following were the main changes in Tcl/Tk 8.5.15.  A complete list
can be found in the changes file at the root of the source tree.  The
more complete Timelines of all changes are online

	http://core.tcl.tk/tcl/
	http://core.tcl.tk/tk/

This is a patch release, so it primarily includes bug fixes and corrections
to erratic behavior.  Below are only the most notable changes.

   * Limited support for fork() with threads.  Enough for Rivet.

   * Restored performance appending to long strings.

   * Errors from execution traces become errors of the traced command.

   * Revise tm path search to favor providers that come first.

   * Restored missing string-based command delete callbacks.

   * Fixed crashes in...
	- [load]ing Tk on 64-bit Windows.
	- [destroy $scrollbar] (Cocoa).
	- execution stack memory management.
	- regexps with overflowing number of colors.
	- enter traces that destroy traced command.

   * Fixed [lsort -nocase] failure on non-ASCII characters.

   * Fixed failure of regexp {[[:cntrl:]]} to match \x00 to \x1f.

   * Corrected inconsistencies of I/O buffering.

   * Fix: [ttk::entry .e; .e xview end; .e xview insert].

   * Fix: [regexp {(\w).*?\1} abb] => 1.

   * Fixed keyboard bindings for reversed [ttk::scale].

   * For [ttk::progressbar .pb] make [.pb step] function in write traces.

   * Many file dialog fixes and improvements.

   * New package releases:
	http 2.7.12:	 Support URLs with query but no path
	msgcat 1.5.2:	 Use language packs (Vista+) locale
	platform 1.0.12: broaden glibc version detection

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