Where are the current docs for TclOO (1.3.0)

Hello out there,
when I 'pack requ TclOO' in Tcl9 it returns version 1.3.0. But the
distro I use (BAWT) doesn't contain any docs for TclOO. And when I
look on  https://core.tcl-lang.org/tcloo/ it says there
    The TclOO Package is an implementation of TclOO for Tcl 8.5.

Since I am just starting with TclOO I would like very much up to date
documentation.

Any link will be greatly appreciated
Helmut