Alternatively post it here in case others run into the same issue.
For anyone struggling with this...
Refer to the documentation, it'll likely be in there. Link to Documentation
how can I force update again schema? When doing update my internet connection was shut down, I'm not able to run it second time because saying that everything is updated
Have you encountered any actual issues? If not, odds are that the upgrade actually did finish.
Protip for someone in the future who will visit this topic:
DB keeps schemaDate (timestamp) and schemaLog (table), you can read this keys to check which schema upgrades are already applied.
topic can be closed