We have just released AJC Active Backup v2.11 for Windows. AJC Active Backup protects you while you work by taking instant backups of your work files and keeping multiple versions to undo. This protects you from mistakes, file corruption and lets you know what is being changed on your machine. You get built in diff view so you can see what has changed. Archives are compact because it only stores the changes. Read more here: https://www.ajcsoft.com/active-backup.htm
