Continuing their trend of releasing substantial features and additional services in their web services portfolio on a regular basis, Amazon announced this week the availability of versioning and multi-factor authentication across their Simple Storage Service (S3) property.

How S3 Versioning Works
Versioning is a critical feature many developers had requested as data stored on S3, while maintained in triplicate across the S3 file-system automatically, is still vulnerable to sweeping delete operations by developers, errant scripts, or other causes. Moreover, developers had to manually version changing files if they wanted to preserve the ability to roll-back to an earlier revision or undo a “delete”. In any event, a lot of custom code had to be created to replicate these behaviors, and most solutions weren’t particularly graceful.

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