Numeric priorities in Org 9.4

> Numeric priorities are now allowed (up to 65)
> You can now set org-priority-highest/lowest/default to integers to use numeric priorities globally or set, for example
>
> to define a buffer-local range and default for priorities. Priority commands should work as usual. You cannot use numbers superior to 64 for numeric priorities, as it would clash with priorities like [#A] where the "A" is internally converted to its numeric value of 65.