Updating Veeam Backup & Replication
Apart from major version releases of Veeam Backup & Replication (for example, 12.3), Veeam Software provides updates (for example, update 12.3.2.4165 for updating from v12.3.2.3617). Updates contain bug fixes, performance enhancements and introduce new features.
Note  | 
During the update procedure, Veeam Backup & Replication may recreate Windows Firewall rules with default settings. If you have manually modified Windows Firewall rules before installing a new cumulative patch, reapply those modifications after the update.  | 
Before you update Veeam Backup & Replication, check prerequisites. Then use the Veeam Backup & Replication update wizard to run the product update.
- Start the update wizard.
 - Select the component to update.
 - Read and accept the license agreement.
 - Perform the configuration check.
 - Review the components that will be upgraded and begin the update process.
 
After you upgrade Veeam Backup & Replication, perform the finalizing steps.
For information on how to update Veeam Backup & Replication in the unattended mode, see Upgrading Veeam Backup & Replication in Silent Mode.