In light of and possibly
other changes to the TclOO set of commands made
between the Tcl 8.6.0 and Tcl 8.6.1 releases, shouldn't
we have a bump in the version number of "TclOO" reported?

[package present TclOO] => 1.1


Then a corresponding TclOO 1.1 package for Tcl 8.5
presenting the same interface changes might maintain
the sync so that the numbers have meaning for TclOO users.

This has not yet been done.  I'll hold any final release of Tcl 8.6.1
until either it is done, or we determine that we're not going to
do it as a deliberate choice rather than an oversight.