Google today announced that they are ending support for Google Chrome on Windows XP and Windows Vista. Since these operating systems are missing critical security updates (no longer actively supported by Microsoft) and have a greater potential to be infected by viruses and malware, Google has decided to drop the support. Starting April 2016, Chrome will continue to function on these platforms but will no longer receive updates and security fixes. Google is also ending Chrome support on Mac OS X 10.6, 10.7, and 10.8.
Windows XP and Windows Vista users should upgrade to Windows 10 to get latest software from all the vendors.