[TCLCORE] Tcl/Tk 8.6.6 RELEASED

[Donald G P. <don...@ni...>]

Tcl/Tk 8.6.6 Release Announcement
July 27, 2016

The Tcl Core Team is pleased to announce the 8.6.6 releases of the Tcl
dynamic language and the Tk toolkit.  This is the sixth 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 8.6.6 sources are freely available as open source from the
Tcl Developer Xchange web site at:

         http://www.tcl.tk/software/tcltk/8.6.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 are 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 8.6.5:
--------------------------------------

This is a patch release, so it primarily includes bug fixes and corrections
to erratic behavior.  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.

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

    * [TIP 443] More configuration options for text tags.

    * [TIP 446] [$text edit (canundo|canredo)].

    * Update to Unicode 9.0.
         *** POTENTIAL INCOMPATIBILITY ***

    * Final newline in [text] handling restored compat with 8.6.4 and 
before.
         *** POTENTIAL INCOMPATIBILITY ***

    * [file] support for more Windows filesystem conventions. 
[5d7ca0,ae61a6]
         *** POTENTIAL INCOMPATIBILITY ***

    * [namespace upvar $ns] now ignores custom resolvers in $ns.
         *** POTENTIAL INCOMPATIBILITY ***

    * Tcl_WrongNumArgs() now uses proper list formatting in error message.
      Matters when parameter names contain spaces, etc.
         *** POTENTIAL INCOMPATIBILITY ***

    * Fixed crashes or hangs in...
       - [apply {{} {foreach x y {if 1 break else}}}]
       - compiled [string replace]
       - notifier finalization
       - server socket creation on Win
       - [glob -path a]
       - Tcl_DString appends to self
       - mouse pointer warping
       - Aqua geometry calculations on new toplevel
       - zlib-8.17, zlib-8.18
       - apply {{} {lassign {} item; dict update item item item two two {}}}
       - [vwait] after namespace delete destroys variable waited on.

    * Fix: Safe handling of widget destruction during callbacks.

    * Fix: compiled [lreplace $list end ...].
         *** POTENTIAL INCOMPATIBILITY ***

    * Fix: circumstances of command callbacks from [scale].

    * Fix: Stop <Map> event firing from hidden panes of panedwindow.

    * Fix: <<Modified>> delivery to text peers.

    * Win: Mouse events in exposed window after double click in file dialog.

    * Improve support for text bindings customization.

    * Improved performance scaling of [namespace delete].

    * Xft color font speed.

    * Restored support for TclBlend.

    * tcltest -relateddir processing in sorted order

    * Aqua appearance fixes.

    * Updated bundled packages
       - tcltest 2.4.0: (TIP 447) execution time verbosity option
       - registry 1.3.2:
       - Itcl 4.0.5
       - Thread 2.8.0
       - sqlite 3.13.0

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

-- 
| Don Porter            Applied and Computational Mathematics Division |
| don...@ni...             Information Technology Laboratory |
| http://math.nist.gov/~DPorter/                                  NIST |
|______________________________________________________________________|