Simple middleware-style router for Node.js, useful for routing HTTP requests and composing request handlers using `router(req, res, callback)` with `http.createServer` or other web frameworks. It supports typical routing methods like `router.get` and `router.use`, plus options for strictness and case sensitivity, and `router.param` for parameter-specific middleware.
Project status
- Maintenance status: The repository shows an upstream push on 2026-06-02, suggesting it is still being worked on, but the provided change history shows no published updates after v2.2.0 (2025-03-27), so maintenance appears ongoing but with limited visible release activity in the evidence here.
- Update cadence: Visible published updates are relatively infrequent (v2.1.0 in 2025-02, then v2.2.0 in 2025-03, earlier changes spread across 2024-2023), and there is a ~1.5-year gap since the last listed published update up to today (2026-09-10), despite the mid-2026 upstream push.
AI summary generated
Recent updates
v2.2.0
v2.2.0 adds more runtime debug logging and introduces deprecation warnings when route handlers or .param handlers return promise-like values instead of native Promises. It also removes older compatibility checks (notably around setImmediate and test-time Promise detection) and updates several dependencies/devDependencies.
Featuresv2.1.0
v2.1.0 focuses on internal refactors to remove small helper dependencies and polyfills, switching to Node.js and standard-library equivalents such as Array.flat, Object.setPrototypeOf, and node:http METHOD constants. It also updates a few runtime dependencies (parseurl, is-promise) and refreshes CI tooling and configuration.
BreakingFeaturesv2.0.0
Release v2.0.0 was published on 2024-09-09, but the publisher did not provide release notes. As a result, there is no documented information here about new features, breaking changes, bug fixes, security updates, performance improvements, or migration steps.
v1.3.8
Release v1.3.8 focuses on fixing how the router handles requests where the HTTP method is missing. The runtime change prevents `toLowerCase()` from throwing and allows routes like `route.all(...)` to be selected when `req.method` is `undefined`.
v1.3.7
Release v1.3.7 is described as a fix for hanging when there is a large stack of synchronous routes. The diff shows the router’s internal request handling logic was adjusted to better handle large synchronous route stacks, and a regression test was added to cover this scenario.
v2.0.0-beta.1
Router 2.0.0-beta.1 refactors core routing internals, removes the `debug` dependency, and upgrades routing to align with `path-to-regexp@3.2.0` semantics. The diff also shows additional runtime behavior changes that are not described in the provided release notes, including promise rejection handling.
BreakingFeaturesv1.3.6
Release 1.3.6 fixes handling for very large stacks of synchronous middleware to prevent stack overflows. It also bumps the safe-buffer dependency to v5.2.1.
v1.3.5
Release v1.3.5 focuses on fixing middleware execution for unanchored RegExp path patterns and making a small internal performance optimization. The code changes add explicit prefix validation during route layer matching and switch the route method map to a null-prototype object.
v1.3.4
Release v1.3.4 is presented as a small dependency-only update (array-flatten, parseurl, setprototypeof). The code diff, however, also includes several non-runtime changes to CI/test tooling and documentation formatting.
v2.0.0-alpha.1
Release 2.0.0-alpha.1 adds basic support for returned Promises from router middleware, wiring returned thenables into the router's `next(...)` error flow. It also drops support for Node.js versions below 0.10 and bumps `debug` to 3.1.0 with the related environment variable behavior changes described in the notes.
BreakingFeaturesv1.3.3
Release 1.3.3 is described as a documentation-only change, fixing the JSDoc for the Router constructor. The code diff also includes minor formatting-only edits and several non-runtime repo changes (tests, CI matrix, README), plus a devDependency bump.