'''Changes in Tcl/Tk 8.5.19'''

** Tcl Changes **

***Changes to Tcl variables***

****New global variables****

   [tcl_platform]('''engine'''):   [TIP][http://tip.tcl.tk/440%|%440]

***Changed Tcl behavior***

   Update to Unicode 8.0 support.

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**Tk Changes**
***Changes to Tk Commands***

****Expanded Syntax / New Options****

   ''[panedwindow]'' '''-proxybackground''' ''color'' '''-proxyborderwidth''' ''size'' '''-proxyrelief''' ''value'':   [TIP] [http://tip.tcl.tk/437%|%437]

**Changes to Bundled Packages**

***Updated packages***

   [platform] '''1.0.14''':   Cygwin support fix.

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