Since the upcoming extension manager is being built using Girder platform, I wanted to share with you their request for feedback.
The Girder team is requesting feedback from stakeholders to help form policies around supported browser versions.
If you’re a user or administrator of a Girder instance and want to give your input, feel free to leave it on our discourse topic:
https://discourse.girder.org/t/feedback-browser-support/135
Also, for Girderi who are interested, the Girder team will be making use of the Announcements category on our discourse for this sort of thing going forward: Announcements - Girder.