Y2038 - years before 1000 disallowed
Y2038 - years before 100 disallowed test + additional reverse check of datetimes
Y2038 - more tests
Y2038 - metadata spec updated
Y2038 - integration test when storing metadata
Y2038 - disable years < 1000 > 9999 when storing metadata
Y2038 - fix error message when years out of range