This "Day 0" update for Veeam Backup & Replication 12 is strictly intended for servers using the RTM release (build 12.0.0.1402).
If Veeam Backup & Replication 12 GA (build 12.0.0.1420) is installed, this update can be ignored as it is not needed. All resolved issues listed in this article were found between RTM and GA releases and were included in the GA release version.
This update is intended for existing installations of Veeam Backup & Replication 12 RTM (build 12.0.0.1402) and will update those installations to Veeam Backup & Replication V12 GA (build 12.0.0.1420).
All new V12 installations must be performed using the Veeam Backup & Replication 12 GA ISO that is available for download from Veeam the website starting from February 14, 2023. Version 12 GA ISO includes an updated setup program that addresses several upgrade-related issues reported by early adopters of the RTM build.
Please delete the V12 RTM ISO to ensure you don't accidentally use it in the future.
This update addresses several issues found internally and reported by our partners while using Veeam Backup & Replication 12 RTM (build 12.0.0.1402).
Failed to connect to AWS plug-in
Failed to deserialize SBucket from XmlString
GET /api/backups?format=Entity
incorrectly returns object of "ChildBackup" type instead of "ParentBackup" type.Nullable object must have a value
Failed to make backup immutable
Unable to prepare source for task
Please note that a reboot may be required after installing the update.
Please plan accordingly.
All deployments using Veeam Backup & Replication 12 RTM (12.0.0.1402) must install the Day 0 patch listed on this KB before attempting to install Veeam Backup & Replication 12 cumulative patches. Failure to install the Day 0 update, upgrading the server from Veeam Backup & Replication 12 RTM to version 12 GA, will cause cumulative update installers to fail with:
This update can only be installed on Veeam Backup & Replication 12 GA.
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