■ VRAs from the existing installation are not automatically upgraded when upgrading Zerto Virtual Replication.

■ If a newer version of the installed VRAs exists, you can continue to use the current VRAs with the new version of Zerto Virtual Replication, or you can upgrade these VRAs from within the Zerto User Interface.

■ VRAs installed with the previous version of Zerto Virtual Replication can work with VRAs installed with the current version of Zerto Virtual Replication in any combination (all from one version or a mix of VRA versions) as long as the VRAs are only one version lower than the version of Zerto Virtual Replication installed on the site.

■ Zerto recommends that you always upgrade the VRAs on your site to the latest version.

■ Not all new installations of Zerto Virtual Replication require upgrading VRAs. If your VRA is outdated relative to your current version of Zerto Virtual Replication and an upgrade is available, the VRA version will be reported in the column as outdated. In addition, an alert is issued on the site using the old VRA and on any site that is paired with it.