[neoeldex]

The developer edition is bit more bleeding edge than beta, but less than nightly. Nightly is updated daily. I'm not sure what the developer frequency is. But if your sporting it, you're getting the fresh features not entirely ready.

[codefined]

Isn't this incorrect? The developer edition appears to be built from the beta version. You get some alternate switches turned on, such as extensions no longer required to be signed & other stuff, but none of it is specifically new.