Drop support for Tcl/Tk 8.4?

Hi all,

I am proposing to drop support for Tcl/Tk 8.4 from Tcl::pTk. This is =
mainly because:

  1. the developers of Tcl/Tk have no longer supported 8.4 for some =
time, and have encouraged anyone using it to upgrade;
  2. many binary Tcl/Tk distributions and OS package managers no longer =
provide 8.4; and
  3. I personally have not tested Tcl::pTk on Tcl/Tk 8.4 for these =
reasons.

I have not thought of any immediate or significant benefits to the =
Tcl::pTk codebase other than being able to remove checks for whether =
Tcl/Tk 8.5+ is present before using features such as Tile/Ttk.

I will go ahead and bump the Tcl::pTk version to 1.00 if I drop Tcl/Tk =
8.4.

I do not suspect that any of the active Tcl::pTk users I have heard from =
over the past several months are using Tcl/Tk 8.4, but please respond in =
case of objections to (or approval of :^) ) this proposal.

I currently do not have any plans to drop support for Tcl/Tk 8.5, since =
some platforms still ship with 8.5 (e.g. macOS).


Christopher A. Chavez=