Juno has made many changes to the rules of the v5 Juno client.
All previous versions will be automatically upgraded to version v5. The client will recieve a huge packet in the second mail connection with an older version. It contains the archive for the updates.
It is no longer accepted for free email or free internet - Juno won't accept Juno Platinum dialer connections from v5 or below now, you will need to use v6 rebranded Netzero dialer system. You can still use the Juno email program with at least a MegaMail or Juno Platinum account.
The program remains the same. It's the servers that have changed.
However, gone are the advertisement banners - they never got any tangible money out of the ads due to the highly devalued price of online advertising. Ever since discontinuing the unpaid v5 marketing, there are no more advertisements. The packets that it receives are mostly the Juno Web components, as well as security.
I am guessing the Juno program will continue to be available until Juno chooses to stop support, or when Patent #5848397 expires, which will be on Dec 2018.
Well, it seems that Juno has abandoned the use of #5809242 and #5838790, offline advertising and advertisement security, so #5848397 is the one that deals with the remaining function of Juno 5.033, the method for receiving messages be it mail, upgrades, or advertising.
Patent 6014502 is the wrapping patent. It is challenged by
http://www.JoeGalaxy.net , it does not use delivered advertising, only referred advertising, ducking this Juno patent. The program builds a cookie out of your demographic profile that it uses to obtain the advertising. It has a built-in webmail console, ducking another Juno patent. Joe Galaxy also offers chat, forums and its new P2P filesharing system in the program. Not a lot, but it's been going on as long as Juno, it is worth a look.
http://www.JoeGalaxy.net , download the client there, or take the red pill

to see the preview. Yeah, looks like they're Matrix fans.