2021-09-28, Version 14.18.0 'Fermium' (LTS)

Notable changes: assert: * change status of legacy asserts (James M Snell) #38113 buffer: * (SEMVER-MINOR) introduce Blob (James M Snell) #36811 * (SEMVER-MINOR) add base64url encoding option (Filip Skokan) #36952 child_process: * (SEMVER-MINOR) allow `options.cwd` receive a URL (Khaidi Chu) #38862 * (SEMVER-MINOR) add timeout to spawn and fork (Nitzan Uziely) #37256 * (SEMVER-MINOR) allow promisified exec to be cancel (Carlos Fuentes) #34249 * (SEMVER-MINOR) add 'overlapped' stdio flag (Thiago Padilha) #29412 cli: * (SEMVER-MINOR) add -C alias for --conditions flag (Guy Bedford) #38755 * (SEMVER-MINOR) add --node-memory-debug option (Anna Henningsen) #35537 dns: * (SEMVER-MINOR) add "tries" option to Resolve options (Luan Devecchi) #39610 * (SEMVER-MINOR) allow `--dns-result-order` to change default dns verbatim (Ouyang Yadong) #38099 doc: * (SEMVER-MINOR) add missing change to resolver ctor (Luan Devecchi) #39610 * refactor fs docs structure (James M Snell) #37170 errors: * (SEMVER-MINOR) remove experimental from --enable-source-maps (Benjamin Coe) #37362 esm: * deprecate legacy main lookup for modules (Guy Bedford) #36918 fs: * (SEMVER-MINOR) allow empty string for temp directory prefix (Voltrex) #39028 * (SEMVER-MINOR) allow no-params fsPromises fileHandle read (Nitzan Uziely) #38287 * (SEMVER-MINOR) add support for async iterators to `fsPromises.writeFile` (HiroyukiYagihashi) #37490 * improve fsPromises readFile performance (Nitzan Uziely) #37608 * (SEMVER-MINOR) add fsPromises.watch() (James M Snell) #37179 * (SEMVER-MINOR) allow `position` parameter to be a `BigInt` in read and readSync (Darshan Sen) #36190 http2: * (SEMVER-MINOR) add support for sensitive headers (Anna Henningsen) #34145 * (SEMVER-MINOR) allow setting the local window size of a session (Yongsheng Zhang) #35978 inspector: * mark as stable (Gireesh Punathil) #37748 module: * (SEMVER-MINOR) add support for `URL` to `import.meta.resolve` (Antoine du Hamel) #38587 * (SEMVER-MINOR) add support for `node:`‑prefixed `require(…)` calls (ExE Boss) #37246 net: * (SEMVER-MINOR) introduce net.BlockList (James M Snell) #34625 node-api: * (SEMVER-MINOR) allow retrieval of add-on file name (Gabriel Schulhof) #37195 os: * (SEMVER-MINOR) add os.devNull (Luigi Pinca) #38569 perf_hooks: * (SEMVER-MINOR) introduce createHistogram (James M Snell) #37155 process: * (SEMVER-MINOR) add api to enable source-maps programmatically (legendecas) #39085 * (SEMVER-MINOR) add `'worker'` event (James M Snell) #38659 * (SEMVER-MINOR) add direct access to rss without iterating pages (Adrien Maret) #34291 readline: * (SEMVER-MINOR) add AbortSignal support to interface (Nitzan Uziely) #37932 * (SEMVER-MINOR) add support for the AbortController to the question method (Mattias Runge-Broberg) #33676 * (SEMVER-MINOR) add history event and option to set initial history (Mattias Runge-Broberg) #33662 repl: * (SEMVER-MINOR) add auto‑completion for `node:`‑prefixed `require(…)` calls (ExE Boss) #37246 src: * (SEMVER-MINOR) call overload ctor from the original ctor (Darshan Sen) #39768 * (SEMVER-MINOR) add a constructor overload for CallbackScope (Darshan Sen) #39768 * (SEMVER-MINOR) allow to negate boolean CLI flags (Michaël Zasso) #39023 * (SEMVER-MINOR) add --heapsnapshot-near-heap-limit option (Joyee Cheung) #33010 * (SEMVER-MINOR) add way to get IsolateData and allocator from Environment (Anna Henningsen) #36441 * (SEMVER-MINOR) allow preventing SetPrepareStackTraceCallback (Shelley Vohr) #36447 * (SEMVER-MINOR) add maybe versions of EmitExit and EmitBeforeExit (Anna Henningsen) #35486 stream: * (SEMVER-MINOR) add readableDidRead if has been read from (Robert Nagy) #39589 * (SEMVER-MINOR) pipeline accept Buffer as a valid first argument (Nitzan Uziely) #37739 tls: * (SEMVER-MINOR) allow reading data into a static buffer (Andrey Pechkurov) #35753 tools: * (SEMVER-MINOR) add `Worker` to type-parser (James M Snell) #38659 url: * (SEMVER-MINOR) expose urlToHttpOptions utility (Yongsheng Zhang) #35960 util: * (SEMVER-MINOR) expose toUSVString (Robert Nagy) #39814 v8: * (SEMVER-MINOR) implement v8.stopCoverage() (Joyee Cheung) #33807 * (SEMVER-MINOR) implement v8.takeCoverage() (Joyee Cheung) #33807 worker: * (SEMVER-MINOR) add setEnvironmentData/getEnvironmentData (James M Snell) #37486 PR-URL: #39990
nodejs · Sep 28, 2021 · d9ebc04 · d9ebc04
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -51,7 +51,8 @@ release.
 <a href="doc/changelogs/CHANGELOG_V16.md#16.0.0">16.0.0</a><br/>
     </td>
     <td valign="top">
-<b><a href="doc/changelogs/CHANGELOG_V14.md#14.17.6">14.17.6</a></b><br/>
+<b><a href="doc/changelogs/CHANGELOG_V14.md#14.18.0">14.18.0</a></b><br/>
+<a href="doc/changelogs/CHANGELOG_V14.md#14.17.6">14.17.6</a><br/>
 <a href="doc/changelogs/CHANGELOG_V14.md#14.17.5">14.17.5</a><br/>
 <a href="doc/changelogs/CHANGELOG_V14.md#14.17.4">14.17.4</a><br/>
 <a href="doc/changelogs/CHANGELOG_V14.md#14.17.3">14.17.3</a><br/>

diff --git a/doc/api/assert.md b/doc/api/assert.md
@@ -456,7 +456,9 @@ An alias of [`assert.ok()`][].
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: v16.0.0
+  - version:
+      - v16.0.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38113
     description: In Legacy assertion mode, changed status from Deprecated to
                  Legacy.
@@ -475,18 +477,18 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/12142
     description: The `Set` and `Map` content is also compared.
   - version:
-    - v6.4.0
-    - v4.7.1
+      - v6.4.0
+      - v4.7.1
     pr-url: https://github.com/nodejs/node/pull/8002
     description: Typed array slices are handled correctly now.
   - version:
-    - v6.1.0
-    - v4.5.0
+      - v6.1.0
+      - v4.5.0
     pr-url: https://github.com/nodejs/node/pull/6432
     description: Objects with circular references can be used as inputs now.
   - version:
-    - v5.10.1
-    - v4.4.3
+      - v5.10.1
+      - v4.4.3
     pr-url: https://github.com/nodejs/node/pull/5910
     description: Handle non-`Uint8Array` typed arrays correctly.
 -->
@@ -1127,7 +1129,9 @@ assert.doesNotThrow(
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: v16.0.0
+  - version:
+      - v16.0.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38113
     description: In Legacy assertion mode, changed status from Deprecated to
                  Legacy.
@@ -1455,7 +1459,9 @@ instance of an [`Error`][] then it will be thrown instead of the
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: v16.0.0
+  - version:
+      - v16.0.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38113
     description: In Legacy assertion mode, changed status from Deprecated to
                  Legacy.
@@ -1470,18 +1476,18 @@ changes:
     pr-url: https://github.com/nodejs/node/pull/12142
     description: The `Set` and `Map` content is also compared.
   - version:
-    - v6.4.0
-    - v4.7.1
+      - v6.4.0
+      - v4.7.1
     pr-url: https://github.com/nodejs/node/pull/8002
     description: Typed array slices are handled correctly now.
   - version:
-    - v6.1.0
-    - v4.5.0
+      - v6.1.0
+      - v4.5.0
     pr-url: https://github.com/nodejs/node/pull/6432
     description: Objects with circular references can be used as inputs now.
   - version:
-    - v5.10.1
-    - v4.4.3
+      - v5.10.1
+      - v4.4.3
     pr-url: https://github.com/nodejs/node/pull/5910
     description: Handle non-`Uint8Array` typed arrays correctly.
 -->
@@ -1635,7 +1641,9 @@ instead of the [`AssertionError`][].
 <!-- YAML
 added: v0.1.21
 changes:
-  - version: v16.0.0
+  - version:
+      - v16.0.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38113
     description: In Legacy assertion mode, changed status from Deprecated to
                  Legacy.

diff --git a/doc/api/buffer.md b/doc/api/buffer.md
@@ -85,7 +85,9 @@ const buf7 = Buffer.from('tést', 'latin1');
 ## Buffers and character encodings
 <!-- YAML
 changes:
-  - version: v15.7.0
+  - version:
+      - v15.7.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/36952
     description: Introduced `base64url` encoding.
   - version: v6.4.0
@@ -448,7 +450,9 @@ Additionally, the [`buf.values()`][], [`buf.keys()`][], and
 
 ## Class: `Blob`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 > Stability: 1 - Experimental
@@ -458,7 +462,9 @@ multiple worker threads.
 
 ### `new buffer.Blob([sources[, options]])`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 changes:
   - version: v16.7.0
     pr-url: https://github.com/nodejs/node/pull/39708
@@ -488,7 +494,9 @@ U+FFFD replacement characters.
 
 ### `blob.arrayBuffer()`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 * Returns: {Promise}
@@ -498,14 +506,18 @@ the `Blob` data.
 
 ### `blob.size`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 The total size of the `Blob` in bytes.
 
 ### `blob.slice([start, [end, [type]]])`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 * `start` {number} The starting index.
@@ -526,7 +538,9 @@ Returns a new `ReadableStream` that allows the content of the `Blob` to be read.
 
 ### `blob.text()`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 * Returns: {Promise}
@@ -536,7 +550,9 @@ UTF-8 string.
 
 ### `blob.type`
 <!-- YAML
-added: v15.7.0
+added:
+  - v15.7.0
+  - v14.18.0
 -->
 
 * Type: {string}

diff --git a/doc/api/child_process.md b/doc/api/child_process.md
@@ -146,7 +146,9 @@ exec('"my script.cmd" a b', (err, stdout, stderr) => {
 <!-- YAML
 added: v0.1.90
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
@@ -275,7 +277,9 @@ controller.abort();
 <!-- YAML
 added: v0.1.91
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
@@ -384,14 +388,20 @@ controller.abort();
 <!-- YAML
 added: v0.5.0
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
-  - version: v15.13.0
+  - version:
+      - v15.13.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/37256
     description: timeout was added.
-  - version: v15.11.0
+  - version:
+      - v15.11.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/37325
     description: killSignal for AbortSignal was added.
   - version:
@@ -499,14 +509,20 @@ if (process.argv[2] === 'child') {
 <!-- YAML
 added: v0.1.90
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
-  - version: v15.13.0
+  - version:
+      - v15.13.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/37256
     description: timeout was added.
-  - version: v15.11.0
+  - version:
+      - v15.11.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/37325
     description: killSignal for AbortSignal was added.
   - version:
@@ -746,7 +762,9 @@ subprocess.unref();
 <!-- YAML
 added: v0.7.10
 changes:
-  - version: v15.6.0
+  - version:
+      - v15.6.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/29412
     description: Added the `overlapped` stdio flag.
   - version: v3.3.1
@@ -861,7 +879,9 @@ configuration at startup.
 <!-- YAML
 added: v0.11.12
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
@@ -934,7 +954,9 @@ arbitrary command execution.**
 <!-- YAML
 added: v0.11.12
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.
@@ -998,7 +1020,9 @@ metacharacters may be used to trigger arbitrary command execution.**
 <!-- YAML
 added: v0.11.12
 changes:
-  - version: v16.4.0
+  - version:
+      - v16.4.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/38862
     description: The `cwd` option can be a WHATWG `URL` object using
                  `file:` protocol.

diff --git a/doc/api/cli.md b/doc/api/cli.md
@@ -190,7 +190,9 @@ code from strings throw an exception instead. This does not affect the Node.js
 
 ### `--dns-result-order=order`
 <!-- YAML
-added: v16.4.0
+added:
+  - v16.4.0
+  - v14.18.0
 -->
 
 Set the default value of `verbatim` in [`dns.lookup()`][] and
@@ -213,7 +215,9 @@ against FIPS-compatible OpenSSL.)
 <!-- YAML
 added: v12.12.0
 changes:
-  - version: v15.11.0
+  - version:
+      - v15.11.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/37362
     description: This API is no longer experimental.
 -->
@@ -363,7 +367,9 @@ be added.
 
 ### `--heapsnapshot-near-heap-limit=max_count`
 <!-- YAML
-added: v15.1.0
+added:
+  - v15.1.0
+  - v14.18.0
 -->
 
 > Stability: 1 - Experimental
@@ -647,7 +653,9 @@ Silence all process warnings (including deprecations).
 
 ### `--node-memory-debug`
 <!-- YAML
-added: v15.0.0
+added:
+  - v15.0.0
+  - v14.18.0
 -->
 
 Enable extra debug checks for memory leaks in Node.js internals. This is

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
@@ -2760,7 +2760,9 @@ changes:
   - version: v16.0.0
     pr-url: https://github.com/nodejs/node/pull/37206
     description: Runtime deprecation.
-  - version: v15.8.0
+  - version:
+      - v15.8.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/36918
     description: Documentation-only deprecation
                  with `--pending-deprecation` support.

diff --git a/doc/api/dns.md b/doc/api/dns.md
@@ -97,7 +97,9 @@ The following methods from the `dns` module are available:
 <!-- YAML
 added: v8.3.0
 changes:
-  - version: v16.7.0
+  - version:
+      - v16.7.0
+      - v14.18.0
     pr-url: https://github.com/nodejs/node/pull/39610
     description: The `options` object now accepts a `tries` option.
   - version: v12.18.3
@@ -643,7 +645,9 @@ one of the [DNS error codes][].
 
 ## `dns.setDefaultResultOrder(order)`
 <!-- YAML
-added: v16.4.0
+added:
+  - v16.4.0
+  - v14.18.0
 -->
 
 * `order` {string} must be `'ipv4first'` or `'verbatim'`.
@@ -1168,7 +1172,9 @@ is one of the [DNS error codes]().
 
 ### `dnsPromises.setDefaultResultOrder(order)`
 <!-- YAML
-added: v16.4.0
+added:
+  - v16.4.0
+  - v14.18.0
 -->
 
 * `order` {string} must be `'ipv4first'` or `'verbatim'`.