We don't currently support auto-update for Linux releases of Brim, as the Electron auto-updater mechanism ( https://www.electronjs.org/docs/api/auto-updater#platform-notices ) doesn't support it. We'll eventually shift to an auto-update mechanism that does support Linux; in the meantime, we should at least let Linux users know when there's a relevant update for them, and point them to the download page.