Using a 4400 Wireless Controller and WCS how do you upgrade the LWAPP IOS on Access Points to the latest version or is this even necessary? My LWAPP access points are fully functional 1131's and converted 1230's, but I would like to know what the procedure to update ios's are when a new one comes out. Do these automatically install when you update the controller software or do I need to download new IOS periodically and copy it to the controller or WCS, etc? What do you think?