Google is going to drop support for Chrome 53 and older versions by the end of 2017. Google recommends users of Chrome to upgrade to Chrome 55 which is the latest version. This decision has been taken due to security reasons. The latest version of Chrome browser comprises the updates which fixes various bugs. If you are still using older version, you need to consider about upgrading it, as it is not safe to use outdated version that can cost you to compromise important data in the hands of unauthorized persons.
This decision to move from Chrome 53 to the latest version will affect the users of Windows XP and Vista as Microsoft has dropped to support these legacy Windows.
“Gmail users that are still on Windows XP and Windows Vista are the most likely to be affected, because v49 was the last released version which supported those operating systems.”
As per Google, the banner will be displayed at the top of the Gmail interface stating the move beginning on February 8, 2017 for those users who still stick to outdated versions (Chrome 53 or older).
Chrome 53 or older version can lead to critical security issues and users will no longer able to access latest features and bug fixes updates after the termination of support. Even Gmail will be more vulnerable to the security risks if you continue to use outdated Chrome browser. Besides this, you will be redirected to the basic HTML version of Gmail if you don’t upgrade your Chrome 53 to the latest Chrome 55 before dropping the support.