Here's what they said on the Skype forums: Microsoft's Skype team later offered up some details, saying Skype now requires at least OS X 10.6. The first indication many Leopard users had that they were being left behind came when they found out Skype's service simply stopped working for them. The change happened this week, leaving Leopard users without any way to use the voice and video chat app. Mac users running OS X 10.5.8 and earlier can't use Skype anymore now that Microsoft has dropped support for the older versions of the Mac operating system.
