Actually, WP Travel version 4 provides ‘Switch to V4’ option so that user who are using WP Travel plugin with previous version(before 4) can switch to version 4 or can stay to same version(they have used) even after updating WP Travel to version 4.
If user who are using previous version(before 4) of WP Travel plugin wants to move to version 4 then they have to enable ‘Switch to V4’ option by going to Admin Panel > WP Travel > Settings > General.
When we enable ‘Switch to V4’ option to update WP Travel from previous version to v4 version, database should be updated. So, you will get message regarding database update.
To update database, please deactivate and reactivate WP Travel plugin.
Note: Please keep the backup before applying action as mentioned above as safe side.
If you have any queries, please submit it to our Contact page.