Forgot to run migrate_file_comment

Upgraded server from 6.0x to 7.0.5 but missed running the migrate_file_comment migration as it’s hidden in changelog and not listed in download-dot-seafile-dot-com/published/seafile-manual.
Changelog says it should’ve been ran after migration to 6.3

May I still run it at 7.0.5? Note I’m not 100% sure if that needs to be ran as I have no idea whether users have used the file comment feature.
So my question is
a) would it be safe to still run it at v7.0.5;
b) any way to verify if the script even needs to be ran (ie if file comment feature has been used)