Hello,

yes, iStreamLight still works with newer servers, even with 6.0 alpha. Anyway, you are strongly encouraged to upgrade to the official client library. It offers lots of improvements on iStreamLight, like: automatic reconnection, automatic resubscription, support for polling mode on unstable networks, proxy traversal, push notifications (currently in alpha), etc. Last but not least, as it is an official product you can have official support.

If you have any question regarding the upgrade process from iStreamLight to the official client library, feel free to ask.
Best regards,

Gianluca