eugu (1) [Avatar] Offline
I've read in 7.2: "Express is a popular web framework built on Connect". It's not true since Express v4.
As stated in Express docs:

"Express 4 no longer depends on Connect, and removes all built-in middleware from its core, except for the express.static function. This means that Express is now an independent routing and middleware web framework"

Although they claim old Connect middleware is compatible with the new Express.