We would like to upgrade from QDX 5.2 rev2 to QDX 5.6 rev1. Can you tell us if you installed QDX 5.6 rev1 and if you had any issues with it in production? We are thinking to upgrade to QDX 5.5 or 5.6 and we are not sure which version is stable enough. We are on AIX 5.2. Thank you