On the EDCD Discord channel we discussed retiring these schemas when E:D 2.2 goes live. The rationale being that any app still sending messages in these schemas will almost certainly not have been updated to send the new ships and modules in 2.2, and will therefore be sending incomplete and/or inaccurate info.
FYI at time of writing, according to the stats only ~3% of traffic on EDDN is in these schemas.
Retire v2 commodities schema
and v1 outfitting and shipyard schemas.