Enterprise Technology & Services recommends that students, faculty and staff using Mac devices DO NOT upgrade to the latest Mac OS, Big Sur, as it is not compatible with Pulse Secure VPN.
Apple released Big Sur Nov. 12, 2020. Because it does not support Pulse Secure VPN, users who upgrade may have difficulty remotely accessing many academic and administrative applications, including those listed here: https://td.unh.edu/TDClient/60/Portal/Requests/ServiceDet?ID=188
We will provide additional information after Pulse Secure has released a fix.