I have been using the combination of WSO2 API Manager 2.0.0 and WSO2 Idenity server 5.2.0 The configurations was based on https://docs.wso2.com/display/CLUSTER44x/Configuring+the+Pre-Packaged+Identity+Server+5.2.0+with+API+Manager+2.0.0
Now for the socket API support , have to upgrade API Manager to 2.1.0.
We are using not much features other than API management in API manager and user storing in Identity server.
Is there a chance to avoid migration in total and set up newwer versions and migrate the API's and users alone . The benefit is the installation will be fresh and will have existing data.