The last version of Internet Explorer, version 11, was released on October 17, 2013. This is a very long time ago when taking into account the rapid development of web technologies. These days it is often difficult and time consuming to get modern technologies to work well in this old browser. More and more frameworks are dropping support, and even Microsoft themselves has announced that they will fully drop support for IE in their own services in 2021.
Consequently, we have decided to not include support for IE in the Design Library website.
Start now. That is the quick answer!
Up until now it has been up to each team/product to decide whether to use the old or the new design system.
Since the introduction 2017, the digital design has been applied and tested in different contexts. We have worked through it enough to encourage you to use it fully.
Please contact us email@example.com if you would like to discuss your perspective.
As we learn more, the design will always be updated - that's the beauty of it. Design Library is set up to make it easy for development teams to easily update design changes by using npm.