just finish upgrade from 7.10 to 7.10.4
on GUI no errors
on error.log i can see this:
Thu May 3 11:57:21 2018 [959][1][FATAL] Query Failed: ALTER TABLE email_addresses ADD confirm_opt_in VARCHAR(255) DEFAULT āopt-inā NULL: MySQL error 1060: Duplicate column name āconfirm_opt_inā
Thu May 3 11:57:37 2018 [959][-none-][ERROR] Cannot create directory cache/modules/UserPreferences cannot be touched
Thu May 3 11:58:11 2018 [1185][1][FATAL] Scheduler cannot write PID file. Please check permissions on cache/modules/Schedulers/lastrun
the permissions are: drwxrwsā 2 www-data www-data cache/modules/
another issue is the theme dosent looks good after upgrade