Q. Is it possible to upgrade Tarantool 1.7.5 to 1.7.6? I have Tarantool 18.104.22.168.g39276fe-1, but it gives this information at startup:
2017-10-19 23:16:05.650  main/101/Registry upgrade.lua:945 W> cannot auto upgrade schema version to 1.7.6, please call box.schema.upgrade() manually
A. Simply use
box.schema.upgrade() once on this instance - and everything should be OK.