We have reversed the disabling of C & C so we can continue our evaluation. Also, the 'My Grades' tool has been made to appear by default in new courses.
See the MS article for more information. It goes into more detail and provides some FAQs as well as stating that IE11 is the last version of Internet Explorer but will continue to b e supported on Windows 10.
If you are browsing with Internet Explorer below IE 10, you should see a paragraph in bold red below this.
If you must use IE, definitely upgrade to IE 11.