The Mac update will be available tomorrow (May 27) users are asked to follow Skype on Twitter and Facebook for updates on the upcoming fix. Skype has just released an update for Windows users, which you can download here. Some users still cannot log into Skype today despite following the instructions below. Let us know in the comments whether Skype is working for you.
Follow these instructions from Skype to see if they can get you back online (also copied below). I was able to log into my own account on both my Android phone and my laptop to make VoIP calls just moments ago so either I was never affected or the outage is really over. Skype seems to have found a fix for the problem and has posted some instructions to help users sign-in on its blog.
Tweets from Skype users around the world say they are still experiencing sign-in problems this morning, especially those who use Skype on computers that run Windows.