By request, Iâll give you a quick rundown on how to develop against the latest version of Rails. Why would you want to do this? You might be working on a brand new app thatâll be in development for a while, so stability is not a great concern. Maybe you wanna be the cool kid on the block playing with as-yet-unreleased features. Whatever the case, hereâs how you do it. By default, when you start a

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