Important Avaya recommends that you upgrade the Central Management 2.5 server before upgrading the Avaya one-X Agent 2.5 client if you are deploying the Avaya one-X Agent system with Central Management.
The Avaya one-X Agent installer automatically upgrades any of the following versions already installed on your system to Release 2.5:
Avaya one-X Agent Release 1.0
Avaya one-X Agent Release 1.0, SP1
Avaya one-X Agent Release 2.0
Avaya one-X Agent Release 2.0, SP1
Avaya one-X Agent Release 2.0, SP2
Avaya one-X Agent Release 2.0, SP3
Important Do not try to upgrade between interim build versions of the Avaya one-X Agent Release 2.5, as the Avaya one-X Agent installer does not support. If you attempt to update the application between the build versions, the system displays errors while logging in.
Use the following steps to upgrade Avaya one-X Agent to Release 2.5.

