No specific info about version 81.3. Please visit the main page of Bvckup 2 on Software Informer.
Securely Backup Your PC and Mac Files Online - Access Them Anytime
It recovers files deleted from your Windows computer.
Automatically safeguards your files, music, photos and other important documents
Recover deleted files from hard disks, USB drives, SD cards, and other media.
Backs up the data on Dell PCs and restores it in case of failure.
Bvckup's default mode of operation is to constantly monitor for changes.