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CHANGELOG_V17.md

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Node.js 17 ChangeLog

Current
17.0.0

2021-10-19, Version 17.0.0 (Current), @BethGriggs

Notable Changes

Deprecations and Removals

  • [f182b9b29f] - (SEMVER-MAJOR) dns: runtime deprecate type coercion of dns.lookup options (Antoine du Hamel) #39793
  • [4b030d0573] - doc: deprecate (doc-only) http abort related (dr-js) #36670
  • [36e2ffe6dc] - (SEMVER-MAJOR) module: subpath folder mappings EOL (Guy Bedford) #40121
  • [64287e4d45] - (SEMVER-MAJOR) module: runtime deprecate trailing slash patterns (Guy Bedford) #40117

OpenSSL 3.0

Node.js now includes OpenSSL 3.0, specifically quictls/openssl which provides QUIC support. With OpenSSL 3.0 FIPS support is again available using the new FIPS module. For details about how to build Node.js with FIPS support please see BUILDING.md.

While OpenSSL 3.0 APIs should be mostly compatible with those provided by OpenSSL 1.1.1, we do anticipate some ecosystem impact due to tightened restrictions on the allowed algorithms and key sizes.

If you hit an ERR_OSSL_EVP_UNSUPPORTED error in your application with Node.js 17, it’s likely that your application or a module you’re using is attempting to use an algorithm or key size which is no longer allowed by default with OpenSSL 3.0. A command-line option, --openssl-legacy-provider, has been added to revert to the legacy provider as a temporary workaround for these tightened restrictions.

For details about all the features in OpenSSL 3.0 please see the OpenSSL 3.0 release blog.

Contributed in #38512, #40478

V8 9.5

The V8 JavaScript engine is updated to V8 9.5. This release comes with additional supported types for the Intl.DisplayNames API and Extended timeZoneName options in the Intl.DateTimeFormat API.

You can read more details in the V8 9.5 release post - https://v8.dev/blog/v8-release-95.

Contributed by Michaël Zasso - #40178

Readline Promise API

The readline module provides an interface for reading data from a Readable stream (such as process.stdin) one line at a time.

The following simple example illustrates the basic use of the readline module:

import * as readline from 'node:readline/promises';
import { stdin as input, stdout as output } from 'process';

const rl = readline.createInterface({ input, output });

const answer = await rl.question('What do you think of Node.js? ');

console.log(`Thank you for your valuable feedback: ${answer}`);

rl.close();

Contributed by Antoine du Hamel - #37947

Other Notable Changes

  • [1b2749ecbe] - (SEMVER-MAJOR) dns: default to verbatim=true in dns.lookup() (treysis) #39987
  • [59d3d542d6] - (SEMVER-MAJOR) errors: print Node.js version on fatal exceptions that cause exit (Divlo) #38332
  • [a35b7e0427] - deps: upgrade npm to 8.1.0 (npm team) #40463
  • [6cd12be347] - (SEMVER-MINOR) fs: add FileHandle.prototype.readableWebStream() (James M Snell) #39331
  • [d0a898681f] - (SEMVER-MAJOR) lib: add structuredClone() global (Ethan Arrowood) #39759
  • [e4b1fb5e64] - (SEMVER-MAJOR) lib: expose DOMException as global (Khaidi Chu) #39176
  • [0738a2b7bd] - (SEMVER-MAJOR) stream: finished should error on errored stream (Robert Nagy) #39235

Semver-Major Commits

  • [9dfa30bdd5] - (SEMVER-MAJOR) build: compile with C++17 (MSVC) (Richard Lau) #38807
  • [9f0bc602e4] - (SEMVER-MAJOR) build: compile with --gnu++17 (Richard Lau) #38807
  • [62719c5fd2] - (SEMVER-MAJOR) deps: update V8 to 9.5.172.19 (Michaël Zasso) #40178
  • [66da32c045] - (SEMVER-MAJOR) deps,test,src,doc,tools: update to OpenSSL 3.0 (Daniel Bevenius) #38512
  • [40c6e838df] - (SEMVER-MAJOR) dgram: tighten address validation in socket.send (Voltrex) #39190
  • [f182b9b29f] - (SEMVER-MAJOR) dns: runtime deprecate type coercion of dns.lookup options (Antoine du Hamel) #39793
  • [1b2749ecbe] - (SEMVER-MAJOR) dns: default to verbatim=true in dns.lookup() (treysis) #39987
  • [ae876d420c] - (SEMVER-MAJOR) doc: update minimum supported FreeBSD to 12.2 (Michaël Zasso) #40179
  • [59d3d542d6] - (SEMVER-MAJOR) errors: print Node.js version on fatal exceptions that cause exit (Divlo) #38332
  • [f9447b71a6] - (SEMVER-MAJOR) fs: fix rmsync error swallowing (Nitzan Uziely) #38684
  • [f27b7cf95c] - (SEMVER-MAJOR) fs: aggregate errors in fsPromises to avoid error swallowing (Nitzan Uziely) #38259
  • [d0a898681f] - (SEMVER-MAJOR) lib: add structuredClone() global (Ethan Arrowood) #39759
  • [e4b1fb5e64] - (SEMVER-MAJOR) lib: expose DOMException as global (Khaidi Chu) #39176
  • [36e2ffe6dc] - (SEMVER-MAJOR) module: subpath folder mappings EOL (Guy Bedford) #40121
  • [64287e4d45] - (SEMVER-MAJOR) module: runtime deprecate trailing slash patterns (Guy Bedford) #40117
  • [707dd77d86] - (SEMVER-MAJOR) readline: validate AbortSignals and remove unused event listeners (Antoine du Hamel) #37947
  • [8122d243ae] - (SEMVER-MAJOR) readline: introduce promise-based API (Antoine du Hamel) #37947
  • [592d1c3d44] - (SEMVER-MAJOR) readline: refactor Interface to ES2015 class (Antoine du Hamel) #37947
  • [3f619407fe] - (SEMVER-MAJOR) src: allow CAP_NET_BIND_SERVICE in SafeGetenv (Daniel Bevenius) #37727
  • [0a7f850123] - (SEMVER-MAJOR) src: return Maybe from a couple of functions (Darshan Sen) #39603
  • [bdaf51bae7] - (SEMVER-MAJOR) src: allow custom PageAllocator in NodePlatform (Shelley Vohr) #38362
  • [0c6f345cda] - (SEMVER-MAJOR) stream: fix highwatermark threshold and add the missing error (Rongjian Zhang) #38700
  • [0e841b45c2] - (SEMVER-MAJOR) stream: don't emit 'data' after 'error' or 'close' (Robert Nagy) #39639
  • [ef992f6de9] - (SEMVER-MAJOR) stream: do not emit end on readable error (Szymon Marczak) #39607
  • [efd40eadab] - (SEMVER-MAJOR) stream: forward errored to callback (Robert Nagy) #39364
  • [09d8c0c8d2] - (SEMVER-MAJOR) stream: destroy readable on read error (Robert Nagy) #39342
  • [a5dec3a470] - (SEMVER-MAJOR) stream: validate abort signal (Robert Nagy) #39346
  • [bb275ef2a4] - (SEMVER-MAJOR) stream: unify stream utils (Robert Nagy) #39294
  • [b2ae12d422] - (SEMVER-MAJOR) stream: throw on premature close in Readable[AsyncIterator] (Darshan Sen) #39117
  • [0738a2b7bd] - (SEMVER-MAJOR) stream: finished should error on errored stream (Robert Nagy) #39235
  • [954217adda] - (SEMVER-MAJOR) stream: error Duplex write/read if not writable/readable (Robert Nagy) #34385
  • [f4609bdf3f] - (SEMVER-MAJOR) stream: bypass legacy destroy for pipeline and async iteration (Robert Nagy) #38505
  • [e1e669b109] - (SEMVER-MAJOR) url: throw invalid this on detached accessors (James M Snell) #39752
  • [70157b9cb7] - (SEMVER-MAJOR) url: forbid certain confusable changes from being introduced by toASCII (Timothy Gu) #38631

Semver-Minor Commits

  • [6cd12be347] - (SEMVER-MINOR) fs: add FileHandle.prototype.readableWebStream() (James M Snell) #39331
  • [341312d78a] - (SEMVER-MINOR) readline: add autoCommit option (Antoine du Hamel) #37947
  • [1d2f37d970] - (SEMVER-MINOR) src: add --openssl-legacy-provider option (Daniel Bevenius) #40478
  • [3b72788afb] - (SEMVER-MINOR) src: add flags for controlling process behavior (Cheng Zhao) #40339
  • [8306051001] - (SEMVER-MINOR) stream: add readableDidRead (Robert Nagy) #36820
  • [08ffbd115e] - (SEMVER-MINOR) vm: add support for import assertions in dynamic imports (Antoine du Hamel) #40249

Semver-Patch Commits