What's difference with express-session and cookie-session?

Question

I am new with Express. As Express 4.x has removed bundled middlewares. Any middleware I want to use should be required. When I read the README with exp

Answer 1

v4-> cookie-session is (Establish cookie-based sessions.) equals in ->v3 express.cookieSession

v4-> express-session is (Establish server-based sessions (development only)). equals in ->v3 express.session