MeetingJoinPlugin

MeetingJoinPlugin is a browser plug-in component, not a standalone app, and is managed by the Skype for Business client rather than updated separately. If you are running an Intel-only version of Skype for Business, the plug-in is also Intel-only and will stop functioning when Apple removes Rosetta 2 in macOS 28 (September 2028). The solution is to update Skype for Business itself to the native Apple Silicon build. Microsoft has shipped a native Apple Silicon version of Skype for Business, so open the Skype for Business client, go to Help → Check for Updates, and let Microsoft AutoUpdate pull the latest native build. Once Skype for Business is running natively, the MeetingJoinPlugin will operate correctly without any separate update step. If Skype for Business was originally installed via the Mac App Store, update it through the App Store instead.