Most of the time, Chrome will automatically update itself for you without having the need to manually configure it. And it will most likely never run into any troubles, be it on the various PC operating systems or the mobile ones.
However, it might occur at times that automatically updating Chrome is not possible or a certain bug might prevent it from happening. You will have to update the browser manually then.
Manually updating Chrome on a Desktop
To begin with, you will want to enter chrome://help in Chrome’s address bar and it will do two things. First, it will show you the current version of Chrome and, secondly, it will query the Google Servers if there are any updates available for download. If it is up to date, it will inform you about it. If there was an update uninstalled it will download it and will ask you to relaunch the browser when it’s completed.
If the second option doesn’t work, then there might be something that is blocking your connection to the google servers, or there might be some corrupt files that have compromised Chrome’s integrity. In order to fix this, you will want to re-download Chrome from Google. It will come featured with the latest update so that’s a way to get it should auto-update not function.
Updating Chrome on iPhone, Android or iPad
As is the case with the PC, auto-updates should function normally, unless something interfered with the process.
For Android, you will want to check the Play Store. If there is an update available, you will see it listed on the app’s page.
For Apple devices, you will want to check the Apple Store on your devices, be it iPad or iPhone, and hit the updates link. If there are any pending updates, they will be listed there and just look for the Chrome browser.