2.2.0 / 2025-03-26

• Remove setImmediate support check
• Restore debug dependency

2.1.0 / 2025-02-10

• Updated engines field to Node@18 or higher
• Remove Object.setPrototypeOf polyfill
• Use Array.flat instead of array-flatten package
• Replace methods dependency with standard library
• deps: parseurl@^1.3.3
• deps: is-promise@^4.0.0
• Replace utils-merge dependency with Object.assign
• deps: Remove unused dep after

2.0.0 / 2024-09-09

• Drop support for node <18
• deps: path-to-regexp@^8.0.0
  • Drop support for partial capture group router.route('/user(s?)/:user/:op') but still have optional non-capture /user{s}/:user/:op
  • :name? becomes {:name}
  • :name* becomes *name.
  • The splat change also changes splat from strings to an array of strings
  • Optional splats become {*name}
  • :name+ becomes *name and thus equivalent to *name so I dropped those tests
  • Strings as regular expressions are fully removed, need to be converted to native regular expressions

2.0.0-beta.2 / 2024-03-20

This incorporates all changes after 1.3.5 up to 1.3.8.

• Add support for returned, rejected Promises to router.param

2.0.0-beta.1 / 2020-03-29

This incorporates all changes after 1.3.3 up to 1.3.5.

• Internalize private router.process_params method
• Remove debug dependency
• deps: array-flatten@3.0.0
• deps: parseurl@~1.3.3
• deps: path-to-regexp@3.2.0
  • Add new ?, *, and + parameter modifiers.
  • Matching group expressions are only RegExp syntax.
    (*) is no longer valid and must be written as (.*), for example.
  • Named matching groups no longer available by position in req.params.
    /:foo(.*) only captures as req.params.foo and not available as
    req.params[0].
  • Regular expressions can only be used in a matching group.
    /\\d+ is no longer valid and must be written as /(\\d+).
  • Matching groups are now literal regular expressions.
    :foo named captures can no longer be included inside a capture group.
  • Special * path segment behavior removed.
    /foo/*/bar will match a literal * as the middle segment.
• deps: setprototypeof@1.2.0

2.0.0-alpha.1 / 2018-07-27

• Add basic support for returned, rejected Promises
  • Rejected Promises from middleware functions next(error)
• Drop support for Node.js below 0.10
• deps: debug@3.1.0
  • 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

1.3.8 / 2023-02-24

• Fix routing requests without method

1.3.7 / 2022-04-28

• Fix hanging on large stack of sync routes

1.3.6 / 2021-11-15

• Fix handling very large stacks of sync middleware
• deps: safe-buffer@5.2.1

1.3.5 / 2020-03-24

• Fix incorrect middleware execution with unanchored RegExps
• perf: use plain object for internal method map

1.3.4 / 2020-01-24

• deps: array-flatten@3.0.0
• deps: parseurl@~1.3.3
• deps: setprototypeof@1.2.0

1.3.3 / 2018-07-06

• Fix JSDoc for Router constructor

1.3.2 / 2017-09-24

• deps: debug@2.6.9
• deps: parseurl@~1.3.2
  • perf: reduce overhead for full URLs
  • perf: unroll the "fast-path" RegExp
• deps: setprototypeof@1.1.0
• deps: utils-merge@1.0.1

1.3.1 / 2017-05-19

• deps: debug@2.6.8
  • Fix DEBUG_MAX_ARRAY_LENGTH
  • deps: ms@2.0.0

1.3.0 / 2017-02-25

• Add next("router") to exit from router
• Fix case where router.use skipped requests routes did not
• Use %o in path debug to tell types apart
• deps: setprototypeof@1.0.3
• perf: add fast match path for * route

1.2.0 / 2017-02-17

• Skip routing when req.url is not set
• deps: debug@2.6.1
  • Allow colors in workers
  • Deprecated DEBUG_FD environment variable set to 3 or higher
  • Fix error when running under React Native
  • Use same color for same namespace
  • deps: ms@0.7.2

1.1.5 / 2017-01-28

• deps: array-flatten@2.1.1
• deps: setprototypeof@1.0.2
  • Fix using fallback even when native method exists

1.1.4 / 2016-01-21

• deps: array-flatten@2.0.0
• deps: methods@~1.1.2
  • perf: enable strict mode
• deps: parseurl@~1.3.1
  • perf: enable strict mode

1.1.3 / 2015-08-02

• Fix infinite loop condition using mergeParams: true
• Fix inner numeric indices incorrectly altering parent req.params
• deps: array-flatten@1.1.1
  • perf: enable strict mode
• deps: path-to-regexp@0.1.7
  • Fix regression with escaped round brackets and matching groups

1.1.2 / 2015-07-06

• Fix hiding platform issues with decodeURIComponent
  • Only URIErrors are a 400
• Fix using * before params in routes
• Fix using capture groups before params in routes
• deps: path-to-regexp@0.1.6
• perf: enable strict mode
• perf: remove argument reassignments in routing
• perf: skip attempting to decode zero length string
• perf: use plain for loops

1.1.1 / 2015-05-25

• Fix issue where next('route') in router.param would incorrectly skip values
• deps: array-flatten@1.1.0
• deps: debug@~2.2.0
  • deps: ms@0.7.1

1.1.0 / 2015-04-22

• Use setprototypeof instead of __proto__
• deps: debug@~2.1.3
  • Fix high intensity foreground color for bold
  • deps: ms@0.7.0

1.0.0 / 2015-01-13

• Fix crash from error within OPTIONS response handler
• deps: array-flatten@1.0.2
  • Remove redundant code path

1.0.0-beta.3 / 2015-01-11

• Fix duplicate methods appearing in OPTIONS responses
• Fix OPTIONS responses to include the HEAD method properly
• Remove support for leading colon in router.param(name, fn)
• Use array-flatten for flattening arrays
• deps: debug@~2.1.1
• deps: methods@~1.1.1

1.0.0-beta.2 / 2014-11-19

• Match routes iteratively to prevent stack overflows

1.0.0-beta.1 / 2014-11-16

• Initial release ported from Express 4.x
  • Altered to work without Express