If you are a Google Chrome user on Windows and for some reason you have chosen to use the 32-bit version of the browser, it seems that moving forwards you may no longer have the option and will instead be automatically upgraded to the 64-bit version of the app. This is according to a recent post on the Chrome blog.
According to Google, “In order to improve stability, performance, and security, users who are currently on 32-bit version of Chrome, and 64-bit Windows with 4GB or more of memory and auto-update enabled will be automatically migrated to 64-bit Chrome during this update. 32-bit Chrome will still be available via the Chrome download page.”
Basically stability, performance, and security are the main reasons why you should upgrade to the 64-bit version or should be using it anyway, and moving forwards Google will be ensuring that will happen for its users. However this doesn’t mean that the 32-bit version will be going away as Google still plans to keep it around, just that users on compatible computers will be automatically upgraded instead.