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---
date: 2020-05-05T18:30:07.465Z
version: 14.2.0
category: release
title: Node v14.2.0 (Current)
slug: node-v14-2-0
layout: blog-post.hbs
author: Michaël Zasso
---

### Notable Changes

#### Track function calls with `assert.CallTracker` (experimental)

`assert.CallTracker` is a new experimental API that allows to track and later
verify the number of times a function was called. This works by creating a
`CallTracker` object and using its `calls` method to create wrapper functions
that will count each time they are called. Then the `verify` method can be used
to assert that the expected number of calls happened:

```js
const assert = require('assert');

const tracker = new assert.CallTracker();

function func() {}
// callsfunc() must be called exactly twice before tracker.verify().
const callsfunc = tracker.calls(func, 2);
callsfunc();
callsfunc();

function otherFunc() {}
// The second parameter defaults to `1`.
const callsotherFunc = tracker.calls(otherFunc);
callsotherFunc();

// Calls tracker.verify() and verifies if all tracker.calls() functions have
// been called the right number of times.
process.on('exit', () => {
tracker.verify();
});
```

Additionally, `tracker.report()` will return an array which contains information
about the errors, if there are any:

<!-- eslint-disable max-len -->
```js
const assert = require('assert');

const tracker = new assert.CallTracker();

function func() {}
const callsfunc = tracker.calls(func);

console.log(tracker.report());
/*
[
{
message: 'Expected the func function to be executed 1 time(s) but was executed 0 time(s).',
actual: 0,
expected: 1,
operator: 'func',
stack: Error
...
}
]
*/
```

Contributed by ConorDavenport - [#31982](https://github.com/nodejs/node/pull/31982).

#### Console `groupIndentation` option

The Console constructor (`require('console').Console`) now supports different group indentations.

This is useful in case you want different grouping width than 2 spaces.

```js
const { Console } = require('console');
const customConsole = new Console({
stdout: process.stdout,
stderr: process.stderr,
groupIndentation: 10
});

customConsole.log('foo');
// 'foo'
customConsole.group();
customConsole.log('foo');
// 'foo'
```

Contributed by rickyes - [#32964](https://github.com/nodejs/node/pull/32964).

### Commits

#### Semver-minor commits

* [[`c87ed21fdf`](https://github.com/nodejs/node/commit/c87ed21fdf)] - **(SEMVER-MINOR)** **assert**: port common.mustCall() to assert (ConorDavenport) [#31982](https://github.com/nodejs/node/pull/31982)
* [[`c49e3ea20c`](https://github.com/nodejs/node/commit/c49e3ea20c)] - **(SEMVER-MINOR)** **console**: support console constructor groupIndentation option (rickyes) [#32964](https://github.com/nodejs/node/pull/32964)
* [[`bc9e413dae`](https://github.com/nodejs/node/commit/bc9e413dae)] - **(SEMVER-MINOR)** **worker**: add stack size resource limit option (Anna Henningsen) [#33085](https://github.com/nodejs/node/pull/33085)

#### Semver-patch commits

* [[`f62d92b900`](https://github.com/nodejs/node/commit/f62d92b900)] - **build**: add --error-on-warn configure flag (Daniel Bevenius) [#32685](https://github.com/nodejs/node/pull/32685)
* [[`db293c47dd`](https://github.com/nodejs/node/commit/db293c47dd)] - **cluster**: fix error on worker disconnect/destroy (Santiago Gimeno) [#32793](https://github.com/nodejs/node/pull/32793)
* [[`83e165bf88`](https://github.com/nodejs/node/commit/83e165bf88)] - **crypto**: check DiffieHellman p and g params (Ben Noordhuis) [#32739](https://github.com/nodejs/node/pull/32739)
* [[`e07cca6af6`](https://github.com/nodejs/node/commit/e07cca6af6)] - **crypto**: generator must be int32 in DiffieHellman() (Ben Noordhuis) [#32739](https://github.com/nodejs/node/pull/32739)
* [[`637442fec9`](https://github.com/nodejs/node/commit/637442fec9)] - **crypto**: key size must be int32 in DiffieHellman() (Ben Noordhuis) [#32739](https://github.com/nodejs/node/pull/32739)
* [[`c5a4534d5c`](https://github.com/nodejs/node/commit/c5a4534d5c)] - **deps**: V8: backport e29c62b74854 (Anna Henningsen) [#33125](https://github.com/nodejs/node/pull/33125)
* [[`8325c29e92`](https://github.com/nodejs/node/commit/8325c29e92)] - **deps**: update to uvwasi 0.0.8 (Colin Ihrig) [#33078](https://github.com/nodejs/node/pull/33078)
* [[`2174159598`](https://github.com/nodejs/node/commit/2174159598)] - **esm**: improve commonjs hint on module not found (Daniele Belardi) [#31906](https://github.com/nodejs/node/pull/31906)
* [[`74b0e8c3a8`](https://github.com/nodejs/node/commit/74b0e8c3a8)] - **http**: ensure client request emits close (Robert Nagy) [#33178](https://github.com/nodejs/node/pull/33178)
* [[`a4ec01c55b`](https://github.com/nodejs/node/commit/a4ec01c55b)] - **http**: simplify sending header (Robert Nagy) [#33200](https://github.com/nodejs/node/pull/33200)
* [[`451993ea94`](https://github.com/nodejs/node/commit/451993ea94)] - **http**: set default timeout in agent keepSocketAlive (Owen Smith) [#33127](https://github.com/nodejs/node/pull/33127)
* [[`3cb1713a59`](https://github.com/nodejs/node/commit/3cb1713a59)] - **http2,doc**: minor fixes (Alba Mendez) [#28044](https://github.com/nodejs/node/pull/28044)
* [[`eab4be1b93`](https://github.com/nodejs/node/commit/eab4be1b93)] - **lib**: cosmetic change to builtinLibs list for maintainability (James M Snell) [#33106](https://github.com/nodejs/node/pull/33106)
* [[`542da430ff`](https://github.com/nodejs/node/commit/542da430ff)] - **lib**: fix validateport error message when allowZero is false (rickyes) [#32861](https://github.com/nodejs/node/pull/32861)
* [[`5eccf1e9ad`](https://github.com/nodejs/node/commit/5eccf1e9ad)] - **module**: no type module resolver side effects (Guy Bedford) [#33086](https://github.com/nodejs/node/pull/33086)
* [[`466213d726`](https://github.com/nodejs/node/commit/466213d726)] - **n-api**: simplify uv\_idle wrangling (Ben Noordhuis) [#32997](https://github.com/nodejs/node/pull/32997)
* [[`ed45b51642`](https://github.com/nodejs/node/commit/ed45b51642)] - **path**: fix comment grammar (thecodrr) [#32942](https://github.com/nodejs/node/pull/32942)
* [[`bb2d2f6e0e`](https://github.com/nodejs/node/commit/bb2d2f6e0e)] - **src**: remove unused v8 Message namespace (Adrian Estrada) [#33180](https://github.com/nodejs/node/pull/33180)
* [[`de643bc325`](https://github.com/nodejs/node/commit/de643bc325)] - **src**: use unique\_ptr for CachedData in ContextifyScript::New (Anna Henningsen) [#33113](https://github.com/nodejs/node/pull/33113)
* [[`f61928ba35`](https://github.com/nodejs/node/commit/f61928ba35)] - **src**: return undefined when validation err == 0 (James M Snell) [#33107](https://github.com/nodejs/node/pull/33107)
* [[`f4e5ab14da`](https://github.com/nodejs/node/commit/f4e5ab14da)] - **src**: crypto::UseSNIContext to use BaseObjectPtr (James M Snell) [#33107](https://github.com/nodejs/node/pull/33107)
* [[`541ea035bf`](https://github.com/nodejs/node/commit/541ea035bf)] - **src**: separate out NgLibMemoryManagerBase (James M Snell) [#33104](https://github.com/nodejs/node/pull/33104)
* [[`10a87c81cf`](https://github.com/nodejs/node/commit/10a87c81cf)] - **src**: remove unnecessary fully qualified names (rickyes) [#33077](https://github.com/nodejs/node/pull/33077)
* [[`45032a39e8`](https://github.com/nodejs/node/commit/45032a39e8)] - **stream**: fix stream.finished on Duplex (Robert Nagy) [#33133](https://github.com/nodejs/node/pull/33133)
* [[`4cfa7e0716`](https://github.com/nodejs/node/commit/4cfa7e0716)] - **stream**: simplify Readable push/unshift logic (himself65) [#32899](https://github.com/nodejs/node/pull/32899)
* [[`bc40ed31b3`](https://github.com/nodejs/node/commit/bc40ed31b3)] - **stream**: add null check in Readable.from (Pranshu Srivastava) [#32873](https://github.com/nodejs/node/pull/32873)
* [[`b183d0a18a`](https://github.com/nodejs/node/commit/b183d0a18a)] - **stream**: let Duplex re-use Writable properties (Robert Nagy) [#33079](https://github.com/nodejs/node/pull/33079)
* [[`ec24577406`](https://github.com/nodejs/node/commit/ec24577406)] - **v8**: use AliasedBuffers for passing heap statistics around (Joyee Cheung) [#32929](https://github.com/nodejs/node/pull/32929)
* [[`d39254ada6`](https://github.com/nodejs/node/commit/d39254ada6)] - **vm**: fix vm.measureMemory() and introduce execution option (Joyee Cheung) [#32988](https://github.com/nodejs/node/pull/32988)
* [[`4423304ac4`](https://github.com/nodejs/node/commit/4423304ac4)] - **vm**: throw error when duplicated exportNames in SyntheticModule (himself65) [#32810](https://github.com/nodejs/node/pull/32810)
* [[`3866dc1311`](https://github.com/nodejs/node/commit/3866dc1311)] - **wasi**: use free() to release preopen array (Anna Henningsen) [#33110](https://github.com/nodejs/node/pull/33110)
* [[`d7d9960d38`](https://github.com/nodejs/node/commit/d7d9960d38)] - **wasi**: update start() behavior to match spec (Colin Ihrig) [#33073](https://github.com/nodejs/node/pull/33073)
* [[`8d5ac1bbf0`](https://github.com/nodejs/node/commit/8d5ac1bbf0)] - **wasi**: rename \_\_wasi\_unstable\_reactor\_start() (Colin Ihrig) [#33073](https://github.com/nodejs/node/pull/33073)
* [[`c6d632a72a`](https://github.com/nodejs/node/commit/c6d632a72a)] - **worker**: unify custom error creation (Anna Henningsen) [#33084](https://github.com/nodejs/node/pull/33084)

#### Documentation commits

* [[`6925b358f9`](https://github.com/nodejs/node/commit/6925b358f9)] - **doc**: mark assert.CallTracker experimental (Ruben Bridgewater) [#33124](https://github.com/nodejs/node/pull/33124)
* [[`413f5d3581`](https://github.com/nodejs/node/commit/413f5d3581)] - **doc**: add missing deprecation not (Robert Nagy) [#33203](https://github.com/nodejs/node/pull/33203)
* [[`7893bde07e`](https://github.com/nodejs/node/commit/7893bde07e)] - **doc**: fix a typo in crypto.generateKeyPairSync() (himself65) [#33187](https://github.com/nodejs/node/pull/33187)
* [[`d02ced8af6`](https://github.com/nodejs/node/commit/d02ced8af6)] - **doc**: add util.types.isArrayBufferView() (Kevin Locke) [#33092](https://github.com/nodejs/node/pull/33092)
* [[`36d50027af`](https://github.com/nodejs/node/commit/36d50027af)] - **doc**: clarify when not to run CI on docs (Juan José Arboleda) [#33101](https://github.com/nodejs/node/pull/33101)
* [[`a99013718c`](https://github.com/nodejs/node/commit/a99013718c)] - **doc**: fix the spelling error in stream.md (白一梓) [#31561](https://github.com/nodejs/node/pull/31561)
* [[`23962191c1`](https://github.com/nodejs/node/commit/23962191c1)] - **doc**: correct Nodejs to Node.js spelling (Nick Schonning) [#33088](https://github.com/nodejs/node/pull/33088)
* [[`de15edcfc0`](https://github.com/nodejs/node/commit/de15edcfc0)] - **doc**: improve worker pool example (Ranjan Purbey) [#33082](https://github.com/nodejs/node/pull/33082)
* [[`289a5c8dfb`](https://github.com/nodejs/node/commit/289a5c8dfb)] - **doc**: some grammar fixes (Chris Holland) [#33081](https://github.com/nodejs/node/pull/33081)
* [[`82e459d9af`](https://github.com/nodejs/node/commit/82e459d9af)] - **doc**: don't check links in tmp dirs (Ben Noordhuis) [#32996](https://github.com/nodejs/node/pull/32996)
* [[`c5a2f9a02a`](https://github.com/nodejs/node/commit/c5a2f9a02a)] - **doc**: fix markdown parsing on doc/api/os.md (Juan José Arboleda) [#33067](https://github.com/nodejs/node/pull/33067)

#### Other commits

* [[`60ebbc4386`](https://github.com/nodejs/node/commit/60ebbc4386)] - **test**: update c8 ignore comment (Benjamin Coe) [#33151](https://github.com/nodejs/node/pull/33151)
* [[`e276524fcc`](https://github.com/nodejs/node/commit/e276524fcc)] - **test**: skip memory usage tests when ASAN is enabled (Anna Henningsen) [#33129](https://github.com/nodejs/node/pull/33129)
* [[`89ed7a5862`](https://github.com/nodejs/node/commit/89ed7a5862)] - **test**: move test-process-title to sequential (Anna Henningsen) [#33150](https://github.com/nodejs/node/pull/33150)
* [[`af7da46d9b`](https://github.com/nodejs/node/commit/af7da46d9b)] - **test**: fix out-of-bound reads from invalid sizeof usage (Anna Henningsen) [#33115](https://github.com/nodejs/node/pull/33115)
* [[`9ccb6b2e8c`](https://github.com/nodejs/node/commit/9ccb6b2e8c)] - **test**: add missing calls to napi\_async\_destroy (Anna Henningsen) [#33114](https://github.com/nodejs/node/pull/33114)
* [[`3c2f608a8d`](https://github.com/nodejs/node/commit/3c2f608a8d)] - **test**: correct typo in test name (Colin Ihrig) [#33083](https://github.com/nodejs/node/pull/33083)
* [[`92c7e0620f`](https://github.com/nodejs/node/commit/92c7e0620f)] - **test**: check args on SourceTextModule cachedData (Juan José Arboleda) [#32956](https://github.com/nodejs/node/pull/32956)
* [[`f79ef96fea`](https://github.com/nodejs/node/commit/f79ef96fea)] - **test**: mark test flaky on freebsd (Sam Roberts) [#32849](https://github.com/nodejs/node/pull/32849)
* [[`aced1f5d70`](https://github.com/nodejs/node/commit/aced1f5d70)] - **test**: flaky test-stdout-close-catch on freebsd (Sam Roberts) [#32849](https://github.com/nodejs/node/pull/32849)
* [[`6734cc43df`](https://github.com/nodejs/node/commit/6734cc43df)] - **tools**: bump remark-preset-lint-node to 1.15.0 (Rich Trott) [#33157](https://github.com/nodejs/node/pull/33157)
* [[`a87d371014`](https://github.com/nodejs/node/commit/a87d371014)] - **tools**: fix redundant-move warning in inspector (Daniel Bevenius) [#32685](https://github.com/nodejs/node/pull/32685)
* [[`12426f59f5`](https://github.com/nodejs/node/commit/12426f59f5)] - **tools**: update remark-preset-lint-node@1.14.0 (Rich Trott) [#33072](https://github.com/nodejs/node/pull/33072)
* [[`8c40ffc329`](https://github.com/nodejs/node/commit/8c40ffc329)] - **tools**: update broken types in type parser (Colin Ihrig) [#33068](https://github.com/nodejs/node/pull/33068)

Windows 32-bit Installer: https://nodejs.org/dist/v14.2.0/node-v14.2.0-x86.msi<br>
Windows 64-bit Installer: https://nodejs.org/dist/v14.2.0/node-v14.2.0-x64.msi<br>
Windows 32-bit Binary: https://nodejs.org/dist/v14.2.0/win-x86/node.exe<br>
Windows 64-bit Binary: https://nodejs.org/dist/v14.2.0/win-x64/node.exe<br>
macOS 64-bit Installer: https://nodejs.org/dist/v14.2.0/node-v14.2.0.pkg<br>
macOS 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-darwin-x64.tar.gz<br>
Linux 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-linux-x64.tar.xz<br>
Linux PPC LE 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-linux-ppc64le.tar.xz<br>
Linux s390x 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-linux-s390x.tar.xz<br>
AIX 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-aix-ppc64.tar.gz<br>
SmartOS 64-bit Binary: *Coming soon*<br>
ARMv7 32-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-linux-armv7l.tar.xz<br>
ARMv8 64-bit Binary: https://nodejs.org/dist/v14.2.0/node-v14.2.0-linux-arm64.tar.xz<br>
Source Code: *Coming soon*<br>
Other release files: https://nodejs.org/dist/v14.2.0/<br>
Documentation: https://nodejs.org/docs/v14.2.0/api/

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```

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