Notable changes:
* ECMAScript Modules - `--experimental-modules` flag removal
* AsyncLocalStorage API (experimental)
* REPL previews
* REPL reverse-i-search
* REPL substring-based search
* Error monitoring
* Monitoring `error` events
* Monitoring uncaught exceptions
* File system APIs
* New function: `fs.readv`
* Optional parameters in `fs.read`
* Console `groupIndentation` option
* `maxStringLength` option for `util.inspect()`
* Stable N-API release 6
* Stable diagnostic reports
* Increase of the default server headers timeout
* New `--trace-sigint` CLI flag
* Various crypto APIs now support Diffie-Hellman secrets
* Added support for the `dns.ALL` flag in `dns.lookup()`
* Added a new experimental API to interact with Source Map V3 data
* Added support for passing a `transferList` along with `workerData` to
the `Worker` constructor
PR-URL: https://github.com/nodejs/node/pull/33197
Deprecations:
- (SEMVER-MAJOR) crypto: move pbkdf2 without digest to EOL
(James M Snell) [#31166](https://github.com/nodejs/node/pull/31166)
- (SEMVER-MAJOR) fs: deprecate closing FileHandle on garbage collection
(James M Snell) [#28396](https://github.com/nodejs/node/pull/28396)
- (SEMVER-MAJOR) http: move OutboundMessage.prototype.flush to EOL
(James M Snell) [#31164](https://github.com/nodejs/node/pull/31164)
- (SEMVER-MAJOR) lib: move GLOBAL and root aliases to EOL
(James M Snell) [#31167](https://github.com/nodejs/node/pull/31167)
- (SEMVER-MAJOR) os: move tmpDir() to EOL
(James M Snell)[#31169](https://github.com/nodejs/node/pull/31169)
- (SEMVER-MAJOR) src: remove deprecated wasm type check
(Clemens Backes) [#32116](https://github.com/nodejs/node/pull/32116)
- (SEMVER-MAJOR) stream: move \_writableState.buffer to EOL
(James M Snell) [#31165](https://github.com/nodejs/node/pull/31165)
- (SEMVER-MINOR) doc: deprecate process.mainModule
(Antoine du HAMEL) [#32232](https://github.com/nodejs/node/pull/32232)
- (SEMVER-MINOR) doc: deprecate process.umask() with no arguments
(Colin Ihrig) [#32499](https://github.com/nodejs/node/pull/32499)
ECMAScript Modules - Experimental Warning Removal:
- module: remove experimental modules warning
(Guy Bedford) [#31974](https://github.com/nodejs/node/pull/31974)
In Node.js 13 we removed the need to include the --experimental-modules
flag, but when running EcmaScript Modules in Node.js, this would still
result in a warning ExperimentalWarning: The ESM module loader is
experimental.
As of Node.js 14 there is no longer this warning when using ESM in
Node.js. However, the ESM implementation in Node.js remains
experimental. As per our stability index: “The feature is not subject
to Semantic Versioning rules. Non-backward compatible changes or
removal may occur in any future release.” Users should be cautious when
using the feature in production environments.
Please keep in mind that the implementation of ESM in Node.js differs
from the developer experience you might be familiar with. Most
transpilation workflows support features such as optional file
extensions or JSON modules that the Node.js ESM implementation does not
support. It is highly likely that modules from transpiled environments
will require a certain degree of refactoring to work in Node.js. It is
worth mentioning that many of our design decisions were made with two
primary goals. Spec compliance and Web Compatibility. It is our belief
that the current implementation offers a future proof model to
authoring ESM modules that paves the path to Universal JavaScript.
Please read more in our documentation.
The ESM implementation in Node.js is still experimental but we do believe
that we are getting very close to being able to call ESM in Node.js
“stable”. Removing the warning is a huge step in that direction.
New V8 ArrayBuffer API:
* **src**: migrate to new V8 ArrayBuffer API
(Thang Tran) [#30782](https://github.com/nodejs/node/pull/30782)
Multiple ArrayBuffers pointing to the same base address are no longer
allowed by V8. This may impact native addons.
Toolchain and Compiler Upgrades:
- (SEMVER-MAJOR) build: update macos deployment target to 10.13 for 14.x
(AshCripps)[#32454](https://github.com/nodejs/node/pull/32454)
- (SEMVER-MAJOR) doc: update cross compiler machine for Linux armv7
(Richard Lau) [#32812](https://github.com/nodejs/node/pull/32812)
- (SEMVER-MAJOR) doc: update Centos/RHEL releases use devtoolset-8
(Richard Lau) [#32812](https://github.com/nodejs/node/pull/32812)
- (SEMVER-MAJOR) doc: remove SmartOS from official binaries
(Richard Lau) [#32812](https://github.com/nodejs/node/pull/32812)
- (SEMVER-MAJOR) win: block running on EOL Windows versions
(João Reis) [#31954](https://github.com/nodejs/node/pull/31954)
It is expected that there will be an ABI mismatch on ARM between the
Node.js binary and native addons. Native addons are only broken if they
interact with `std::shared_ptr`. This is expected to be fixed in a
later version of Node.js 14.
- [#30786](https://github.com/nodejs/node/issues/30786)
Update to V8 8.1:
- (SEMVER-MAJOR) deps: update V8 to 8.1.307.20
(Matheus Marchini) [#32116](https://github.com/nodejs/node/pull/32116)
Other Notable Changes:
- cli, report: move --report-on-fatalerror to stable
(Colin Ihrig) [#32496](https://github.com/nodejs/node/pull/32496)
- deps: upgrade to libuv 1.37.0
(Colin Ihrig) [#32866](https://github.com/nodejs/node/pull/32866)
- fs: add fs/promises alias module
(Gus Caplan) [#31553](https://github.com/nodejs/node/pull/31553)
PR-URL: https://github.com/nodejs/node/pull/32181
Multi-line JSON is more human readable, but harder for log aggregators
to consume, they usually require a log message per line, particularly
for JSON. Compact output will be consumable by aggregators such as EFK
(Elastic Search-Fluentd-Kibana), LogDNA, DataDog, etc.
PR-URL: https://github.com/nodejs/node/pull/32254
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
If terminating the process with ctrl-c / SIGINT, prints a JS stacktrace
leading up to the currently executing code.
The feature would be enabled under option `--trace-sigint`.
Conditions of no stacktrace on sigint:
- has (an) active sigint listener(s);
- main thread is idle (i.e. uv polling), a message instead of stacktrace
would be printed.
PR-URL: https://github.com/nodejs/node/pull/29207
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Christopher Hiller <boneskull@boneskull.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
It could be convenient to trace abnormal exit of the Node.js processes
that printing stacktrace on each `process.exit` call with a cli option.
This also takes effects on worker threads.
PR-URL: https://github.com/nodejs/node/pull/30516
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
`--es-module-specifier-resolution` is the only flagged portion of the
ESM implementation that does not have the word experimental in the flag
name. This commit changes the flag to:
`--experimental-specifier-resolution`
`--es-module-specifier-resolution` remains as an alias for backwards
compatibility but it is no longer documented.
PR-URL: https://github.com/nodejs/node/pull/30678
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Debugging HTTPS or TLS connections from a Node.js app with (for example)
Wireshark is unreasonably difficult without the ability to get the TLS
key log. In theory, the application can be modified to use the
`'keylog'` event directly, but for complex apps, or apps that define
there own HTTPS Agent (like npm), this is unreasonably difficult.
Use of the option triggers a warning to be emitted so the user is
clearly notified of what is happening and its effect.
PR-URL: https://github.com/nodejs/node/pull/30055
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
The use of dashes -- in general, but especially in our docs -- can be
problematic. It is used inconsistently and there is always another form
of punctuation that is as good or better for the situation. In an effort
to reduce the number of variations we use to display the same types of
information, remove the various uses of dashes from the documentation.
PR-URL: https://github.com/nodejs/node/pull/30101
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Adds the ability to `import` or `require` a package from within its
own source code. This allows tests and examples to be written using
the package name, making them easier to reuse by consumers of the
package.
Assuming the `name` field in `package.json` is set to `my-pkg`, its
test could use `require('my-pkg')` or `import 'my-pkg'` even if
there's no `node_modules/my-pkg` while testing the package itself.
An important difference between this and relative specifiers like
`require('../')` is that self-references use the public interface
of the package as defined in the `exports` field while relative
specifiers don't.
This behavior is guarded by a new experimental flag
(`--experimental-resolve-self`).
PR-URL: https://github.com/nodejs/node/pull/29327
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
AshCripps