This update means Bingbot will be evergreen as we are committing to regularly update our web page rendering engine to the most recent stable version of Microsoft Edge.
Easing Search Engine Optimization
By adopting Microsoft Edge, Bingbot will now render all web pages using the same underlying web platform technology already used today by Googlebot, Google Chrome, and other Chromium-based browsers. This will make it easy for developers to ensure their web sites and their Content Management System work across all these solutions without having to spend time investigating each solution in depth.
By disclosing our new Bingbot Web Pages rendering technology, we are ensuring fewer SEO compatibility problems moving forward and increase satisfaction in the SEO community.
If your feedback can benefit the greater SEO community, Bing and Edge will propose and contribute to the open source Chromium project to make the web better for all of us. Head to github to check out our explainers!
What happens next
Over the next few months, we will be switching to Microsoft Edge “under the hood”, gradually over time. The key aspects of this evolution will be transparent for most sites. We may change our bingbot crawler user-agent as appropriate to allow rendering on some sites.
For most web sites, there is nothing you should really need to worry as we will carefully test that they dynamically render fine before switching them to Microsoft Edge.
We invite you to install and test Microsoft Edge and register your site to Bing Webmaster Tools to get insights about your site, to be notified if we detect issues, and to investigate your site using our upcoming tools based on our new rendering engine.
We look forward to sharing more details in the future. We are excited about the opportunity to be an even-more-active part of the SEO community to continue to make the web better for everyone including all search engines.
Principal Program Manager
Source: Bing Blog Feed