Changes in Tcl/Tk 8.6.6

Released July 27, 2016.

Tcl Changes

Updated to use Unicode 9.0.

Changes to Tcl Commands

Expanded Syntax / New Options

Modified Behavior

• file support for more Windows filesystem conventions
• namespace upvar ignores custom resolvers
• namespace delete now has linear performance in size of namespace

Tk Changes

Changes to Tk Commands

Expanded Syntax / New Options

• TIP 443: More configuration options for text tags
• TIP 446: More information out of text undo mechanism

Look and Feel

• Appearance fixes for OSX/Aqua

Changes to Bundled Packages

Updated 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