This is the first Express 5.0 beta release, based off 4.17.2 and includes changes from 5.0.0-alpha.8. change: Default "query parser" setting to 'simple' Requires Node.js 4+ Use mime-types for file to content type mapping deps: array-flatten@3.0.0 deps: body-parser@2.0.0-beta.1 req.body is no longer always initialized to {} urlencoded parser now defaults extended to false Use on-finished to determi