I've update my CiviCRM from 4.7.24 to 4.7.29 (my CiviCRM system on WordPress), everything seems ok but I have System Status Notice:
Timestamps and Timezones
This MySQL database stores certain fields with data-type "DATETIME". To improve timezone support, you may want to change these from "DATETIME" to "TIMESTAMP".
civicrm_subscription_history.date (New sites default to TIMESTAMP in v4.7.27+) [CRM-21157] (https://issues.civicrm.org/jira/browse/CRM-21157)
Changing should improve data-quality for organizations working in multiple timezones. However, if you do change, then you may need to re-test any customizations or processes that reference these fields. Changing is suggested but not required.
For further discussion, please visit https://github.com/civicrm/org.civicrm.doctorwhen
How can I do to pass this notice?