Gmail online service will show a message warning about the termination of support for Chrome browser older versions. Due to significant changes relating to safety you have to download the 55-th Chrome update to continue using mail services.
Unfortunately, the above solution is not suitable for users of Windows XP and Vista because Microsoft has stopped the support for these operating systems and Chrome updates for them was stopped after version 49.
Gmail services would work till the end of the year in case you won’t update OS and browser. However, service will begin to redirect Windows XP and Vista users to the basic HTML version of the interface with a lower level of functionality and protection.