Because Eaglercraft is not a traditional installed app, "updating" simply means downloading a newer version of the HTML file and opening it. Eaglercraft Eaglercraft
Right-click the page or the "Download HTML" button and select eaglercraft upd download chromebook
Experimental builds for versions like 1.12.2 and 1.20+ are in development, though they may require more modern browser features like WASM-GC to run smoothly. How to Download & Update for Chromebook Because Eaglercraft is not a traditional installed app,