Would this be possible. I've been working on a game for months... no years... just keep putting it down and picking it back up. Today when all of my Ajax calls failed after a forced upgrade it occurred to me just how nice it would be to stick with one stable version until my project is complete and then decide if I need to rummage through the code to upgrade versions.
I know other IDE's do this, like Unity. They don't force an upgrade on the end user. It would be nice if the app on my phone and desktop didn't force an upgrade so that I wasn't forced to go use a specific browser version.