Tcl/Tk 8.6.6 发布，用于信息产业的编程语言

robin

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　　Tcl/Tk 8.6.6 主要是修复 bug 的版本，但令人惊讶的是，该版本中包括了诸多新功能，其中最受期待的当属更新的 Unicode 支持。
　　* [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  event firing from hidden panes of panedwindow.
　　* Fix:  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