How does file versioning work?
CrashPlan can keep infinite versions of your files for as long as you want them (even forever!). If something happens to your file, you can go back to any version you need. Even if you delete a file, you can go back in time to the date or version you want and restore it. CrashPlan uses advanced data de-duplication and block level incremental backup. At a very basic level, this means that once a file is backed up, only subsequent changes are sent to your backup destination. For example, CrashPlan is smart enough to know that only paragraph 2 in your letter to Grandma has changed and will only send the data from paragraph 2 to your backup destination, not the whole file. You’re able to recover either version of the file.
