Tcl/Tk 8.6.13 Release Announcement November 22, 2022:

Summary of Changes since Tcl/Tk 8.6.12:
--------------------------------------
This is a patch release, so it primarily includes bug fixes and corrections
to erratic behavior.  Highlighted changes are noted below.  The changes file
at the root of the source tree contains a more complete list.  The Timelines
of all changes are online.

               http://core.tcl-lang.org/tcl/timeline
               http://core.tcl-lang.org/tk/timeline

   * [TIP 622] Tcl_GetRange defined for index args < 0
        *** POTENTIAL INCOMPATIBILITY ***

   * [TIP 599] [tk::build-info] when paired with Tcl 8.7+

   * Fallback initialization of ::env(HOME) from USERPROFILE

   * text: direct mouse events to insert mark, not current (textTag-15.4)
        *** POTENTIAL INCOMPATIBILITY ***

   * New color for Mac: SelectedMenuItemTextColor

   * [tk_fontchooser] improvements

   * Consistent cross-platform polygon fill

   * Fix crashes or hangs in...
      - extract signed int operand from bytecode on Plan9
      - invalid bytecode in lambda (see apply-10.1)
      - writing ill-formed utf-8 (see io-60.1)
      - [menu .m -type {}]
      - Mac: destroy and re-create toplevel after dragging
      - Geometry requests on window not fully created or destroyed
      - [ttk::combox .foo] current end
      - canvPs-5.1
      - canvWind-2.1
      - textWind-18.3
      - unixW-50.4
      - bind-37.1

   * Fat binary compiles on Mac M1

   * Portability to CHERI-enabled Morello processor

   * Floating point rounding portability to x86 Alpine Linux (musl libc)

   * Restore Tk builds on MacOSX 10.11 (El Capitan)

   * Enable Tk builds on Windows ARM

   * Improved cygwin path support in Tk.

   * Handle deprecation of OSTypes by MacOSX.

   * Mac: Mouse events not delivered to dialog with global grab.

   * Mac: Stop beeping when clicking outside comboboxes.

   * Win: Adapt pointer warp and [tk busy] for better multi-screen support

   * Mac: When a toplevel is minimized, pass focus to another toplevel.

   * Mac: fix image positions in canvas screenshots.

   * GIF with multiple images may reuse transparent color

   * PGM reads with graylevel > 255

   * Fixed broken optimization of smoothed line redraws

   * Mac: ttk::notebook loses control of tab content

   * Mac: enable removal of embedded windows from text widget

   * Win, X11: improve (ttk) menubutton menu position

   * <Enter> event after one toplevel is destroyed (event-9.[12])

   * Execution order when compiled: try second finally [first] (error-9.6)

   * CR-LF split between packets/buffers/reads (tests io-29.36.*)

   * [string is integer 18446744073709551615]

   * ttk::label defaults for -justify/-anchor (test ttk-9.9)

   * Win: middle mouse click blocks system clipbord

   * Avoid invalid <<TreeviewSelect>> events

   * Many code changes to avoid undefined behavior or integer overflow.

   * Updated keysym tables to latest X11R6

   * Updated bundled packages, libraries, standards, data
      - Itcl 4.2.3
      - sqlite3 3.40.0
      - Thread 2.8.8
      - TDBC* 1.1.5 - restored MariaDB support in tdbcmysql
      - http 2.9.8 - numeric IPv6 in URL, connection reuse after code 101
      - platform 1.0.19 - Ventura support
      - tcltest 2.5.5
      - libtommath support/1.x branch
      - zlib 1.2.13
      - Unicode 15
      - tzdata 2022e
      - msg catalog updates: Chinese, Finnish, Russian, Esperanto

Reproducible: Always