No specific info about version 4.9. Please visit the main page of MEGAsync on Mac Informer.
It is a desktop sync application that keeps all your files safe in the cloud.
Resilio Sync is an application that syncs data across all your devices.
This app lets you store files in a cloud storage account.
Utility that lets you sync your file to the My Cloud device on your network.
This app allows you to create files on your Mac and sync them to the cloud.