Installation Guides › Upgrade Guide › Planning Migration and Upgrades › How to Plan a Migration › Mixed SOA Security Manager Environments

Mixed SOA Security Manager Environments

As you migrate to r12.1 SP3, your environment can contain a combination of components at different versions. In addition, you do not have to upgrade all of your components to r12.1 SP3. You can leave some components at the current version. Consider the following:

• If your environment contains r12.0 components, r12.1 SP3 Policy Servers can continue to communicate with r12.0 policy stores.
• If your environment contains r12.1 components, r12.1 SP3 Policy Servers can continue to communicate with r12..1 policy stores.
• If you have a mix of Policy Server versions, users can continue to access resources and have the same experience using r12.0 or r12.1 Agents.
• A mixed environment can support single sign-on.