''Based on Tcl/Tk 8.6a1''

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**Tcl Changes**

***Changes to Tcl Commands***
****New Commands****

   * [oo::class] [http://tip.tcl.tk/257]
   * [oo::copy]
   * [oo::define]
   * [oo::objdefine]
   * [oo::object]

****New Subcommands****

   * [binary decode] [http://tip.tcl.tk/317]
   * [binary encode]
   * [chan pop] [http://tip.tcl.tk/230]
   * [chan push]
   * [interp cancel] [http://tip.tcl.tk/285]


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


***Changed Tcl behavior***

   * The following commands are script-modifiable [ensemble]s: [binary]

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


****New Subcommands****


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


***Changed Tk behavior***

   * GIF images written with LZW compression.

****New Events****



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**Changes to Bundled Packages**
***New packages***

***Updated packages***

   * [ttk::theme::alt] '''8.5''' [http://tip.tcl.tk/248]
   * [ttk::theme::classic] '''8.5''' [http://tip.tcl.tk/248]
   * [ttk::theme::default] '''8.5''' [http://tip.tcl.tk/248]
   * [ttk::theme::clam] '''8.5''' [http://tip.tcl.tk/248]
   * [tile] '''0.8.0''' [http://tip.tcl.tk/248]
   * [Ttk] '''8.5.0''' [http://tip.tcl.tk/248]
   * [platform] '''1.0.3''' [http://tip.tcl.tk/291]
   * [platform::shell] '''1.1.3''' [http://tip.tcl.tk/291]
   * [tcl::tommath] '''8.5.0'''   * [dde] 1.3.2 [http://tip.tcl.tk/120] [http://tip.tcl.tk/130] [http://tip.tcl.tk/135]
   * [msgcat] 1.4.2 [http://tip.tcl.tk/156]
   * [opt] 0.4.5
   * [registry] 1.2.1
   * [tcltest] 2.3.0

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%|[Category Documentation]|[Changes in Tcl/Tk]|%
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