While assisting a user today whose workstation is running 10.8.5, I downloaded the latest version of Skype and tried to run it. To my surprise, I received the following message.
It looks like Skype 6.1.7 only supports 10.9 and higher, which is not something mentioned on the Skype support site’s system requirements page.
The new system requirements are available on the Skype download page by clicking the System Requirements link found there.
For those that need a version of Skype that works on 10.6.x – 10.8.x, it looks like Skype 6.1.5 (334) is the latest version available. It’s available from the following link:
http://www.skype.com/go/getskype-macosx-106-107-108
Hat tip to @tvsutton for finding the download link for the latest version of Skype that works on 10.6.x – 10.8.x.