title: WSO2 upgrade 6.0 analysis, Is username replaced with user-id as input parameter for rest API's
body: <p>Till WSO2 version 5.11 we are using username as input parameter for many rest API's but in WSO2 version 6.0, we are using user-id as input parameter. Is there any documentation available for that, we are using user-id as input parameter?</p>