Why we don't support older (end-of-life) browser versions
Keeping your web browser up to date is very important. Out of date web browsers can have serious security problems. By running an older web browser you'll also probably be missing out on useful and cool new features which newer browsers support.
End-Of-Life browsers (such as Internet Explorer versions below 11) are generally no longer maintained by their developer which means they won't receive updates that protect against security vulnerabilities that have recently been discovered. This can leave you and your information vulnerable to malicious third parties.
The Internet is continuously in development and that includes browsers. New features are added regularly and older features get improvements which enhance your browsing experience. We build applications and websites with a usability and experience first mindset, meaning that we're always looking to include the latest features to make using our apps and websites more pleasant. Older browsers don't allow us to do this, so beyond being less secure, we feel they also get in the way of you getting the best experience out of our apps.
How to update your web browser
Fortunately, most modern web browsers will automatically update themselves so that you're always running the most current version. You no longer need to actually "download and install" the latest version yourself; it will do it for you. However in case you're still somehow working on an older browser and are not sure how to trigger the update, we recommend you look over at this useful guide on whatismybrowser.com