(based on Tcl/Tk 8.5b1)
Please note this page is for reference, not discussions (see Changes in Tcl/Tk)
New Language Syntax
New Command Line Options
Tcl: New Commands
Tcl: Removed Commands
Tcl: New Subcommands
Tcl: Expanded Syntax / New Options
New Tcl global variables
Removed Tcl global variables
Tcl: Changed behavior
Tk: New Commands
Tk: New Subcommands
Tk: New Events
Tk: Expanded Syntax / New Options
Tk: Changed behavior
New packages
Updated packages