If you are still using a Windows XP or Windows Vista PC, or one with OS X 10.6, 10.7, and 10.8 for the Mac, it's time to think about trading up. Google plans to stop supporting and offering updates for its popular Chrome browser for all those older operating systems in less than a year.

Google stated:

Today, we're announcing the end of Chrome's support for Windows XP, as well as Windows Vista, and Mac OS X 10.6, 10.7, and 10.8, since these platforms are no longer actively supported by Microsoft and Apple. Starting April 2016, Chrome will continue to function on these platforms but will no longer receive updates and security fixes. If you are still on one of these unsupported platforms, we encourage you to move to a newer operating system to ensure that you continue to receive the latest Chrome versions and features.

Source: Google