In the new version:
- Tk's implementation of the event loop has been redesigned.
- Added initial support for emoji in text fields.
- Reworked bindings for MouseWheel.
- Improvements have been made to how Tk works on the macOS platform, including support for tabbed windows, internationalization, and rendering in dark theme mode.
- On the Windows platform, Tk provides support for horizontal scrolling.
- Added "[tcl::unsupported::timerate]" command for performance testing.
- Packages included in the basic package have been updated
Itcl 4.2.0,
sqlite3 3.30.1,
Thread 2.8.5
TDBC* 1.1.1,
http 2.9.1,
tcltest 2.5.1,
registry 1.3.4,
dde 1.4.2, libtommath 1.2.0.
Source: opennet.ru