Disclosed herein includes a system, a method, and a device for providing persistence across applications using a content switching server. A device can receive a first request from a client for a version of an application having different versions provided by one or more servers. The device can provide access to each version of the application via different load balancing virtual servers. A content switching virtual server of the device can select a load balancing virtual server to handle the first request for the version of the application. The content switching virtual server can generate a session identifier for a session between the client and the version of the application to persist the session with the selected load balancing virtual server for subsequent requests from the client for the version of the application.