I also wasn’t aware so had a search.

If you don’t mind Reddit, this thread is interesting… https://www.reddit.com/r/rails/comments/133lcyl/can_someone_explain_what_happened_with_the/

Or there’s this… https://www.theverge.com/2021/5/3/22418208/basecamp-all-hands-meeting-employee-resignations-buyouts-implosion

Edit: Actually this is probably the most comprehensive summary: https://schneems.com/2021/05/12/the-room-where-it-happens-how-rails-gets-made/#the-basecamp-incident