Regarding this "end os MOS" issue:

There were issues and they had an impact, BUT we are long over it and
the OS is far from being dead: it was, it is and it will be further
developed. Updates came and continue to come. There were several
minor updates in the past and they will continue. Some future will
provide a big update (V1.5 and beyond), but this future will be not
this year (unknown date). Anyway, MOS 1.4.5 with all those recent
updates (MUI 4, current Ambient, 3D update, new Poseidon, MUICon,..)
is quite a good thing .

Development speed could be faster, but MOS is far, far, far away from
being
dead.