@MastodonEngineering FYI, in the upgrade notes there's no mention of changing the old default nginx site file to support the new maximum attachment size.

"client_max_body_size 80m;" if unchanged causes a response of "413Request Entity Too Large" when trying to attach a file greater than 80mb of course.

There's a mention of editing the nginx.conf for the streaming server changes but nothing about the limit above shipped with previous versions that needs to be changed when upgrading.