You still can switch to 5.3 from your account for 2 more weeks, after that 5.3 support will be dropped completely. Please also note that the latest 5.5 is been now available as a choice to test your applications. Do NOT use 5.5 in production, none of our optimizations features will work and we cant offer support for it,
Best Regards,
NOC of eSG
Venerdì, Febbraio 7, 2014