For iRO server each time after maintenance:
-You have to wait until Allanon update it and his PR (Pull Request) is merged & download again.
OR
-Allanon PR already been committed but ain't yet merged, you can copy-paste the updated file into your openkore files.
OR
-Use git desktop / TortoiseSVN or TortoiseGIT to update to latest version without download everything again once PR is merged.
OR
-Figure it out yourself using allanon tool
https://gist.github.com/allanon/d8181ce ... ddf1885706