After migrating to SDP 9.1 the following message appeared:

This is because we use IE11 in "Enterprise Mode", which kind of emulates IE7/IE8 for a better compatibility.

See https://technet.microsoft.com/en-us/library/dn640687.aspx for more information.

If we do not use this Enterprise Mode for IE11, we encounter issues when using SDP.

Please fix the erroneous warning message (SDP should detect IE11, not IE8) or finally ensure compatibility with IE11, which was released 2 years ago!

Best regards,
Demetrius