It doesn't sound like you're even remotely informed of what's going on in the Skype world lately. Basically, the old infrastructure was peer-to-peer, and over the last couple of months, Microsoft has been moving Skype over to a cloud version. That's why you'll notice the announcements that a lot of older clients and platforms would stop working, and brand new apps have been made for all of the current platforms... including a brand new Linux client.
If anything, this year is the biggest change Skype has EVER HAD.
If anything, this year is the biggest change Skype has EVER HAD.