If you are a Microsoft Edge Insider in the Dev Channel, Microsoft today releases a new Edge build 91.0.831.0. The latest Dev Channel build adds two big features for Microsoft Edge users. The first one is Color Themes support in all platforms, and the other one is MSA sign-in and sync for the Linux users.

There are also some more notable changes and fixes in this new build. For the complete changelog, and to learn what's new in Microsoft Edge build 91.0.831.0 in the Dev Channel, continue reading further.

As the security agencies have seen an increase in attacks against on-premise Microsoft Exchange servers, recently Microsoft released a one-click mitigation tool to help the customers of both current and out-of-support versions of on-premise Exchange Servers who are unfamiliar with the patch/update process.

Now the company has taken an additional step to further support the customers who are still vulnerable and have not yet implemented the complete security updates. To tackle the critical vulnerabilities in Exchange Server, Microsoft implemented an automatic mitigation tool within Defender Antivirus.