A content item is updated in response to advancing capabilities of a client. A local content item received from a server is stored. The local content item has characteristics customized based on prior capabilities of the client. A determination is made regarding whether current capabilities of the client exceed characteristics of the local content item customized based on the prior capabilities of the client. Responsive to determining that the current capabilities of the client exceed the characteristics of the local content item, an updated content item having characteristics customized based on the current capabilities of the client is requested from the server. The updated content item is stored as an updated local content item.