sancho-a-b-c
tags in db-sync are a series of incremental integration of conway feautures. These tags can follow the
sanchonet https://book.world.dev.cardano.org/environments.html#sanchonet-testnet.
Their enumeration has the following meaning:
a: schema changes
b: compatible with a respinned sanchonet or node
c: minor changes or fixes
It is advised to resync from genesis when using a new version a or b.