Release: 2.4.0

[UlisesGascon]

Blockers

We need/want to land (waiting for reviews):

• docs: add FormData upload examples #896
• feat: expose busboy defCharset, highWaterMark and fileHwm options #1465
• feat: add streamHandler option to feed busboy from pre-consumed bodies #1466
• docs: add JSDoc to the public API #1467
• docs: describe the file stream contract for storage engines #1468

What's included in the CHANGELOG.md

## 2.4.0

- Add `filename` to `LIMIT_FILE_SIZE` and `LIMIT_UNEXPECTED_FILE` errors ([#1416](https://github.com/expressjs/multer/pull/1416))
- Accept a function for `limits`, called with the request, to set limits per request ([#1133](https://github.com/expressjs/multer/pull/1133))
- Add opt-in `flush` option to `DiskStorage` to fsync files before the callback runs ([#1458](https://github.com/expressjs/multer/pull/1458))
- Reject non-integer or negative `limits` values at construction time; a float limit silently disabled the check ([#1395](https://github.com/expressjs/multer/pull/1395), [#1335](https://github.com/expressjs/multer/pull/1335))
- Accept requests with exactly `limits.parts` parts; `LIMIT_PART_COUNT` now fires only when the limit is exceeded. If you set `parts` one higher to work around this, you can drop the extra one ([#1446](https://github.com/expressjs/multer/pull/1446))
- Files skipped by `fileFilter` no longer count towards `maxCount` ([#1426](https://github.com/expressjs/multer/pull/1426))
- Change the `LIMIT_UNEXPECTED_FILE` message to "Unexpected file field" ([#426](https://github.com/expressjs/multer/pull/426))
- Remove the `concat-stream` dependency ([#1356](https://github.com/expressjs/multer/pull/1356))
- Docs: remove the translated READMEs ([#1463](https://github.com/expressjs/multer/pull/1463))
- Internal: run the test suite on macOS ([#1464](https://github.com/expressjs/multer/pull/1464))

What's Changed

• docs: remove README translations by @UlisesGascon in docs: remove README translations #1463
• ci: add macOS to the test matrix by @kilisamemarisaaa in ci: add macOS to the test matrix #1464
• feat. improve wording for LIMIT_UNEXPECTED_FILE error code by @flashbag in feat. improve wording for LIMIT_UNEXPECTED_FILE error code #426
• feat: add filename to file errors by @UjjwalKumar239 in feat: add filename to file errors #1416
• refactor: remove concat-stream dependency by @Phillip9587 in refactor: remove concat-stream dependency #1356
• fix: reject non-integer fileSize limits by @abhu85 in fix: reject non-integer fileSize limits #1395
• fix: allow exactly limits.parts parts by @deepakganesh78 in fix: allow exactly limits.parts parts #1446
• fix: do not consume maxCount for files skipped by fileFilter by @Sagargupta16 in fix: do not consume maxCount for files skipped by fileFilter #1426
• fix: validate all limits at construction time by @ShubhamOulkar in fix: validate all limits at construction time #1335
• test: cover storage engine _removeFile invocation semantics by @kilisamemarisaaa in test: cover storage engine _removeFile invocation semantics #1460
• feat: accept a function for limits by @hossein-zare in feat: accept a function for limits #1133
• fix: add flush option to disk storage to fsync files before completion by @kilisamemarisaaa in fix: add flush option to disk storage to fsync files before completion #1458

New Contributors

• @flashbag made their first contribution in feat. improve wording for LIMIT_UNEXPECTED_FILE error code #426
• @UjjwalKumar239 made their first contribution in feat: add filename to file errors #1416
• @Phillip9587 made their first contribution in refactor: remove concat-stream dependency #1356
• @deepakganesh78 made their first contribution in fix: allow exactly limits.parts parts #1446
• @Sagargupta16 made their first contribution in fix: do not consume maxCount for files skipped by fileFilter #1426
• @hossein-zare made their first contribution in feat: accept a function for limits #1133

Full Changelog: v2.3.0...main

[coveralls]

coverage: 99.739%. remained the same — release/2.4.0 into main