# Deprecation Notice for Amazon Snapshot Retention Feature

The snapshot retention feature for Amazon hypervisors is deprecated for this version of the software. For more information about the Obsolescence Policy, see Obsolescence Policy.

## Effective Release

11.20 (Version 11, Feature Release 20)

## Effect of Deprecation

From 11.20, the Retain snapshot after a backup operation option is no longer available for new or existing VM groups in the Command Center, and the Retain snapshot after backup option is no longer available for new or existing subclients in the CommCell Console.

## Replacement

To improve the performance of backup operations for Amazon hypervisors, you can enable changed block tracking (CBT) for Amazon subclients (VM groups).

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