Update: 1:40 pm Eastern Time, Monday 25 September
The planned upgrade has been successfully completed! You can now log in and access your course(s). We hope you like the new look. There may be further changes in appearance as we work with the new platform.
Please note the location of “My Courses” has changed from the left column to the top of the Moodle Home Page (see first screenshot linked below). The left and right columns are now collapsed by default, and those columns are easily opened using the icons at the top left and right respectively (as marked on screenshots).
If you have questions about the new layout, please contact the Office of Student Services: learn@wilmetteinstitute.org, or register in advance to attend the Registrar’s Tuesday Tutorial, here: bit.ly/WI-Tutorial.
Screenshot #1 (Moodle Home Page)

Screenshot #2 (a Classroom page)

Original post
The Moodle site (Wilmette Institute’s Online Learning Center) is scheduled to undergo maintenance and upgrade to Moodle 4.1, starting at 10 pm Eastern Time on Sunday, September 24th. It will remain in maintenance mode until 10 am on Monday, September 25th.