External influences have forced the build to migrate from Buckminster to Tycho, diverting resources from the goal of achieving a 1.0.0 quality release for Photon.
The difficult QVTr issue of relation overriding now has a useful but not full functional solution..
The QVTr to QVTc to QVTu to QVTm to QVTp via QVTs to QVTi chain has evolved by converting direct from QVTr to QVTs avoiding the need tio express QVTr idoms in laguages that do not support them..
A few QVTc, QVTr and UMLX examples work both using interpreted and code generated Java.
However the chain is not yet mature enough for more than experimental use; graduation to 1.0.0 must wait a little longer.