If you have an earlier version installed, please perform a step-by-step upgrade: 3.6.4 → 4.1.0 → 4.3.2 → 4.4.6 → 4.5.6 → 4.6.0.

You cannot directly upgrade to Axxon Next 4.6.0 from versions 3.6.4466 and lower. 

To upgrade from an older version, do the following:

1. Remove the old version.
2. Install the new version.
3. Reconfigure the system.

For a failover system, we recommend you to update Servers through the supervisor service (see Upgrading Servers within a cluster).

Before you start updating, do the following:

• back up your configuration (see Backup and Restore Utility);
• stop the Server (see Shutting down a Server) or, in case of failover system, the NGP_Supervisor service. If you run multiple Servers in the Axxon domain, make sure to stop them all. 

To upgrade to version 4.6.0, you must:

1. Run the new build installer.

   You do not need to remove the previous build.

   
   

2. Install the build using an existing configuration. The procedure is the same as for a new installation (see Installation).
   
   

   When you update the software, keep DBs in the same folder. If you set a different location for DBs, the metadata and events from it will not be available.