MainWP Child 5.3.1

Fixed: Typo in the MainWP Child plugin settings page (#426) – thanks to Isaac Russell
Added: Support for the new Vulnerability Checker service (#419) – thanks to Asif Zaman
Updated: WPvivid Backups extension support with new feature improvements (#422) – thanks to LiuGeng399
Updated: Redirection to the MainWP Child settings page now occurs only when the plugin is activated manually from the Plugins page.