At Skype, we regularly release updates to our software. With every update, we introduce new features, improve existing ones and fix bugs.
Older versions of Skype are missing some of the great new features that Skype has to offer. That’s why Skype is set by default to update automatically to the latest version. While we always recommend you use the latest version of Skype, you can disable automatic updates on your Windows desktop or Mac OS X at any time.
However, from time to time we do retire older versions of Skype to focus our efforts on improving the most recent versions of Skype. When this happens, you’ll need to upgrade your Skype client to continue using it. Please follow these instructions to upgrade to the latest version for free.
There are loads of new features and performance improvements within the latest version of Skype which make chatting, talking and video calling with your friends and family easier and more enjoyable.
No, updating Skype to the latest version does not affect your Skype Credit balance or subscriptions. Any Skype Credit or subscriptions you purchased will remain in your account as they were before the upgrade.