Express v5 Changes by System as of 5.0.0-alpha.8

v5_changes.md

Changes By System

Application

• 5.0.0-alpha.2
  • remove:
    • app.param(fn)
  • change:
    • The leading : character in name for app.param(name, fn) is no longer removed
• 5.0.0-alpha.1
  • add:
    • app.router is a reference to the base router
  • remove:
    • app.del - use app.delete

Middleware

The Router changes also affect some aspects of middleware. Specifically, handling rejected promises returned from middleware or route handers, as well as next('router') bailing out of a router instance.

• 5.0.0-alpha.4
  • remove:
    • Express 3.x middleware error stubs (trying to access middleware which was bundled in 3.x and removed in 4.x e.g. express.compress or express.bodyParser will no longer print a notice. Those values are just undefined without the explicit throw and notice)

Debugging

• 5.0.0-alpha.7
  • deps: [email protected]
    • Add DEBUG_HIDE_DATE environment variable
    • Change timer to per-namespace instead of global
    • Change non-TTY date format
    • Remove DEBUG_FD environment variable support
    • Support 256 namespace colors

Router

• 5.0.0-alpha.7
  • remove:
    • path-to-regexp direct dependency
  • deps: [email protected]
    • Add basic support for returned, rejected Promises
    • Fix JSDoc for Router constructor
    • deps: [email protected]
    • deps: parseurl@~1.3.2
    • deps: [email protected]
    • deps: [email protected]
• 5.0.0-alpha.4
  • deps: router@~1.3.0
    • perf: add fast match path for * route
    • Add next("router") to exit from router (different from next('route') already available)
    • Fix case where router.use skipped requests routes did not
    • Skip routing when req.url is not set
    • Use %o in path debug to tell types apart
    • deps: [email protected]
    • deps: [email protected]
• 5.0.0-alpha.2
  • Use router module for routing
• 5.0.0-alpha.1
  • app.router is a reference to the base router

Req

• 5.0.0-alpha.2
  • remove:
    • req.param() -- use req.params, req.body, or req.query instead
• 5.0.0-alpha.1
  • remove:
    • req.acceptsCharset - use req.acceptsCharsets
    • req.acceptsEncoding - use req.acceptsEncodings
    • req.acceptsLanguage - use req.acceptsLanguages
  • change:
    • req.host now returns host (hostname:port) - use req.hostname for only hostname
    • req.query is now a getter instead of a plain property

Res

• 5.0.0-alpha.6
  • remove:
    • res.redirect(url, status) signature - use res.redirect(status, url)
    • res.send(status, body) signature - use res.status(status).send(body)
• 5.0.0-alpha.3
  • remove:
    • res.json(status, obj) signature - use res.status(status).json(obj)
    • res.jsonp(status, obj) signature - use res.status(status).jsonp(obj)
    • res.vary() (no arguments) -- provide a field name as an argument
• 5.0.0-alpha.2
  • change:
    • res.render callback is always async, even for sync view engines
• 5.0.0-alpha.1
  • remove:
    • res.json(obj, status) signature - use res.json(status, obj)
    • res.jsonp(obj, status) signature - use res.jsonp(status, obj)
    • res.send(body, status) signature - use res.send(status, body)
    • res.send(status) signature - use res.sendStatus(status)
    • res.sendfile - use res.sendFile instead

Branch 5.0 History.md File

This is the source material where the above was pulled from

5.0.0-alpha.8 / 2020-03-25

This is the sixth Express 5.0 alpha release, based off 4.17.1 and includes changes from 5.0.0-alpha.7.

5.0.0-alpha.7 / 2018-10-26

This is the seventh Express 5.0 alpha release, based off 4.16.4 and includes changes from 5.0.0-alpha.6.

The major change with this alpha is the basic support for returned, rejected Promises in the router.

• remove:
  • path-to-regexp dependency
• deps: [email protected]
  • Add DEBUG_HIDE_DATE environment variable
  • Change timer to per-namespace instead of global
  • Change non-TTY date format
  • Remove DEBUG_FD environment variable support
  • Support 256 namespace colors
• deps: [email protected]
  • Add basic support for returned, rejected Promises
  • Fix JSDoc for Router constructor
  • deps: [email protected]
  • deps: parseurl@~1.3.2
  • deps: [email protected]
  • deps: [email protected]

5.0.0-alpha.6 / 2017-09-24

This is the sixth Express 5.0 alpha release, based off 4.15.5 and includes changes from 5.0.0-alpha.5.

• remove:
  • res.redirect(url, status) signature - use res.redirect(status, url)
  • res.send(status, body) signature - use res.status(status).send(body)
• deps: router@~1.3.1
  • deps: [email protected]

5.0.0-alpha.5 / 2017-03-06

This is the fifth Express 5.0 alpha release, based off 4.15.2 and includes changes from 5.0.0-alpha.4.

5.0.0-alpha.4 / 2017-03-01

This is the fourth Express 5.0 alpha release, based off 4.15.0 and includes changes from 5.0.0-alpha.3.

• remove:
  • Remove Express 3.x middleware error stubs
• deps: router@~1.3.0
  • Add next("router") to exit from router
  • Fix case where router.use skipped requests routes did not
  • Skip routing when req.url is not set
  • Use %o in path debug to tell types apart
  • deps: [email protected]
  • deps: [email protected]
  • perf: add fast match path for * route

5.0.0-alpha.3 / 2017-01-28

This is the third Express 5.0 alpha release, based off 4.14.1 and includes changes from 5.0.0-alpha.2.

• remove:
  • res.json(status, obj) signature - use res.status(status).json(obj)
  • res.jsonp(status, obj) signature - use res.status(status).jsonp(obj)
  • res.vary() (no arguments) -- provide a field name as an argument
• deps: [email protected]
• deps: [email protected]
• deps: router@~1.1.5
  • deps: [email protected]
  • deps: methods@~1.1.2
  • deps: parseurl@~1.3.1
  • deps: [email protected]

5.0.0-alpha.2 / 2015-07-06

This is the second Express 5.0 alpha release, based off 4.13.1 and includes changes from 5.0.0-alpha.1.

• remove:
  • app.param(fn)
  • req.param() -- use req.params, req.body, or req.query instead
• change:
  • res.render callback is always async, even for sync view engines
  • The leading : character in name for app.param(name, fn) is no longer removed
  • Use router module for routing
  • Use path-is-absolute module for absolute path detection

5.0.0-alpha.1 / 2014-11-06

This is the first Express 5.0 alpha release, based off 4.10.1.

• remove:
  • app.del - use app.delete
  • req.acceptsCharset - use req.acceptsCharsets
  • req.acceptsEncoding - use req.acceptsEncodings
  • req.acceptsLanguage - use req.acceptsLanguages
  • res.json(obj, status) signature - use res.json(status, obj)
  • res.jsonp(obj, status) signature - use res.jsonp(status, obj)
  • res.send(body, status) signature - use res.send(status, body)
  • res.send(status) signature - use res.sendStatus(status)
  • res.sendfile - use res.sendFile instead
  • express.query middleware
• change:
  • req.host now returns host (hostname:port) - use req.hostname for only hostname
  • req.query is now a getter instead of a plain property
• add:
  • app.router is a reference to the base router