Re-flag `assert` syntax for import attributes in Node.js 22 #51622

nicolo-ribaudo · 2024-01-31T17:28:19Z

What is the problem this feature will solve?

The assert syntax has been replaced by with, and it's currently only shipped by Chrome and Node.js. Other browsers will only ship the with syntax.

Chrome will ship with unflagged in 123, and is planning to remove support for assert in 126: https://v8.dev/features/import-attributes#deprecation-and-eventual-removal-of-assert. According to https://chromiumdash.appspot.com/schedule, Chrome 126 will be released in May.

What is the feature you are proposing to solve the problem?

One year ago in #46830 there was a lot of support from TSC members to re-flag this syntax, but then nothing has been done. Node.js 22, which will be released in April, would be a good release to put assert back behind a flag.

What alternatives have you considered?

[node: I'm opening a new issue rather than commenting in #46830 because it was meant to be a place of discussion for Node.js collaborators, and as such it's locked]

The text was updated successfully, but these errors were encountered:

aduh95 · 2024-01-31T19:24:28Z

One year ago in #46830 there was a lot of support from TSC members to re-flag this syntax

To be clear, #46830 is about re-flagging the JSON modules implementation (which was downgraded from stage 3 to stage 2 by TC39 when that issue was opened), not the assert syntax (which is almost the same thing, because JSON modules are the only supported use case for import assertions/attributes atm).
Because the TC39 went back to stage 3, nothing was re-flagged.
Support for the newer syntax (using with) has since landed on 20.x+, and the current plan is to keep the assert syntax around until v18.x reaches EOL – the last non-EOL version of Node.js which currently does not support the newer syntax.

A few things to consider:

If we introduced a new flag, it likely won't be backported to v18.x, which is in maintenance mode.
We don't want folks to use harmony V8 flags.
We could consider re-introduce the --experimental-json-modules to gatekeep the support for assert, and folks who want to support both Node.js 18.x and 22.x would need to pass that flag. Technically very easy to implement, however a bit hard to document.
Node.js 18.x EOL is scheduled for 2025-04-30 (circa Node.js 24.x release date).
If V8 drops support for assert, we could still float a patch to keep supporting it, although we probably want to avoid that if we can.

Our options seem to be:

Keep supporting assert syntax unflagged until Node.js 24.x (likely we need to float a V8 patch for Node.js 23.x)
Drop support for assert in 22.x. Folks who use JSON modules and want to support both 18.x and 22.x must use a harmony flag. Likely it won't be possible for them to support both 18.x and 23.x.
Put assert syntax support behind --experimental-json-modules. (we might still need to float a V8 patch for 23.x, or drop support for it).

@nodejs/tsc wdyt?

richardlau · 2024-01-31T19:30:21Z

FWIW I'm open to landing #51136 on v18.x if it makes it easier to migrate to the newer syntax. cc @nodejs/lts

GeoffreyBooth · 2024-01-31T20:54:57Z

Just to be clear, I assume you’re proposing flagging assert syntax but not with syntax, correct? We shouldn’t be flagging the latter.

I don’t see much point in flagging something that is going to be removed. We should add a deprecation warning and then just remove it in a semver-major. I would even go so far as to aim to remove assert in 22 unless there’s some reason we need to wait for 23. It’s never graduated to stable, despite being unflagged, so I don’t think it needs a full deprecation cycle.

joyeecheung · 2024-01-31T21:02:08Z

I would suggest to just remove support for assert in the next semver major. I don't really see the point floating a V8 patch like this when the proposal itself has already shifted direction (I don't quite understand why we were unflagging it when V8 had not shipped it in the first place TBH).

mcollina · 2024-02-01T08:59:19Z

I think removing it in 22 is the best course of action.

aduh95 · 2024-02-02T10:28:04Z

Adding the release-agenda Issues and PRs to discuss during the meetings of the Release team. label as my position would depend on the decision of the LTS team regarding #51622 (comment).

nicolo-ribaudo · 2024-03-15T14:26:22Z

Hey just checking what's the current expectation on this, given that Node.js 22 is coming in just one month. I can open a PR to re-flag (or remove?) it, but maybe #51631 should first be released in 21 and 20?

GeoffreyBooth · 2024-03-15T16:32:30Z

I vote for removing assert in 22 and adding a warning for all previous lines. What do others think?

And with would be unflagged.

nicolo-ribaudo · 2024-03-15T19:24:22Z

Note that with is already unflagged in 20 and 21 (and in 18 right now it just doesn't exist, not even behind a flag).

richardlau · 2024-03-15T20:54:48Z

Note that with is already unflagged in 20 and 21 (and in 18 right now it just doesn't exist, not even behind a flag).

#51622 (comment)

Notable changes: Added support for import attributes: Support has been added, behind the `--harmony-import-attributes` flag, for import attributes, which will replace import assertions in a future semver-major Node.js release. This will aid migration by making the new syntax available across all currently supported Node.js release lines. For more details, see * [#50134](#50134) * [#51622](#51622) Doc deprecation for `dirent.path`: Please use newly added `dirent.parentPath` instead. Root certificates updated to NSS 3.98: Certificates added: * Telekom Security TLS ECC Root 2020 * Telekom Security TLS RSA Root 2023 Certificates removed: * Security Communication Root CA Updated dependencies: * ada updated to 2.7.6. * base64 updated to 0.5.2. * c-ares updated to 1.27.0. * corepack updated to 0.25.2. * ICU updated to 74.2. Includes CLDR 44.1 and Unicode 15.1). * npm updated to 10.5.0. Fixes a regression in signals not being passed onto child processes. * simdutf8 updated to 4.0.8. * Timezone updated to 2024a. * zlib updated to 1.3.0.1-motley-40e35a7. vm: fix V8 compilation cache support for vm.Script: Previously repeated compilation of the same source code using `vm.Script` stopped hitting the V8 compilation cache after v16.x when support for `importModuleDynamically` was added to `vm.Script`, resulting in a performance regression that blocked users (in particular Jest users) from upgrading from v16.x. The recent fixes allow the compilation cache to be hit again for `vm.Script` when `--experimental-vm-modules` is not used even in the presence of the `importModuleDynamically` option, so that users affected by the performance regression can now upgrade. Ongoing work is also being done to enable compilation cache support for `vm.CompileFunction`. PR-URL: TODO

Notable changes: Added support for import attributes: Support has been added, behind the `--harmony-import-attributes` flag, for import attributes, which will replace import assertions in a future semver-major Node.js release. This will aid migration by making the new syntax available across all currently supported Node.js release lines. For more details, see * [#50134](#50134) * [#51622](#51622) Doc deprecation for `dirent.path`: Please use newly added `dirent.parentPath` instead. Root certificates updated to NSS 3.98: Certificates added: * Telekom Security TLS ECC Root 2020 * Telekom Security TLS RSA Root 2023 Certificates removed: * Security Communication Root CA Updated dependencies: * ada updated to 2.7.6. * base64 updated to 0.5.2. * c-ares updated to 1.27.0. * corepack updated to 0.25.2. * ICU updated to 74.2. Includes CLDR 44.1 and Unicode 15.1). * npm updated to 10.5.0. Fixes a regression in signals not being passed onto child processes. * simdutf8 updated to 4.0.8. * Timezone updated to 2024a. * zlib updated to 1.3.0.1-motley-40e35a7. vm: fix V8 compilation cache support for vm.Script: Previously repeated compilation of the same source code using `vm.Script` stopped hitting the V8 compilation cache after v16.x when support for `importModuleDynamically` was added to `vm.Script`, resulting in a performance regression that blocked users (in particular Jest users) from upgrading from v16.x. The recent fixes allow the compilation cache to be hit again for `vm.Script` when `--experimental-vm-modules` is not used even in the presence of the `importModuleDynamically` option, so that users affected by the performance regression can now upgrade. Ongoing work is also being done to enable compilation cache support for `vm.CompileFunction`. PR-URL: #52165

Notable changes: Added support for import attributes: Support has been added for import attributes, to replace the old import assertions syntax. This will aid migration by making the new syntax available across all currently supported Node.js release lines. For more details, see * [#50134](#50134) * [#51622](#51622) Doc deprecation for `dirent.path`: Please use newly added `dirent.parentPath` instead. Experimental node-api feature flags Introduces an experimental feature to segregate finalizers that affect GC state. A new type called `node_api_nogc_env` has been introduced as the const version of `napi_env` and `node_api_nogc_finalize` as a variant of `napi_finalize` that accepts a `node_api_nogc_env` as its first argument. This feature can be turned off by defining `NODE_API_EXPERIMENTAL_NOGC_ENV_OPT_OUT`. Root certificates updated to NSS 3.98: Certificates added: * Telekom Security TLS ECC Root 2020 * Telekom Security TLS RSA Root 2023 Certificates removed: * Security Communication Root CA Updated dependencies: * ada updated to 2.7.6. * base64 updated to 0.5.2. * c-ares updated to 1.27.0. * corepack updated to 0.25.2. * ICU updated to 74.2. Includes CLDR 44.1 and Unicode 15.1). * npm updated to 10.5.0. Fixes a regression in signals not being passed onto child processes. * simdutf8 updated to 4.0.8. * Timezone updated to 2024a. * zlib updated to 1.3.0.1-motley-40e35a7. vm: fix V8 compilation cache support for vm.Script: Previously repeated compilation of the same source code using `vm.Script` stopped hitting the V8 compilation cache after v16.x when support for `importModuleDynamically` was added to `vm.Script`, resulting in a performance regression that blocked users (in particular Jest users) from upgrading from v16.x. The recent fixes allow the compilation cache to be hit again for `vm.Script` when `--experimental-vm-modules` is not used even in the presence of the `importModuleDynamically` option, so that users affected by the performance regression can now upgrade. Ongoing work is also being done to enable compilation cache support for `vm.CompileFunction`. PR-URL: #52165

Notable changes: Added support for import attributes: Support has been added for import attributes, to replace the old import assertions syntax. This will aid migration by making the new syntax available across all currently supported Node.js release lines. For more details, see * [#50134](#50134) * [#51622](#51622) Doc deprecation for `dirent.path`: Please use newly added `dirent.parentPath` instead. Experimental node-api feature flags Introduces an experimental feature to segregate finalizers that affect GC state. A new type called `node_api_nogc_env` has been introduced as the const version of `napi_env` and `node_api_nogc_finalize` as a variant of `napi_finalize` that accepts a `node_api_nogc_env` as its first argument. This feature can be turned off by defining `NODE_API_EXPERIMENTAL_NOGC_ENV_OPT_OUT`. Root certificates updated to NSS 3.98: Certificates added: * Telekom Security TLS ECC Root 2020 * Telekom Security TLS RSA Root 2023 Certificates removed: * Security Communication Root CA Updated dependencies: * ada updated to 2.7.6. * base64 updated to 0.5.2. * c-ares updated to 1.27.0. * corepack updated to 0.25.2. * ICU updated to 74.2. Includes CLDR 44.1 and Unicode 15.1. * npm updated to 10.5.0. Fixes a regression in signals not being passed onto child processes. * simdutf8 updated to 4.0.8. * Timezone updated to 2024a. * zlib updated to 1.3.0.1-motley-40e35a7. vm: fix V8 compilation cache support for vm.Script: Previously repeated compilation of the same source code using `vm.Script` stopped hitting the V8 compilation cache after v16.x when support for `importModuleDynamically` was added to `vm.Script`, resulting in a performance regression that blocked users (in particular Jest users) from upgrading from v16.x. The recent fixes allow the compilation cache to be hit again for `vm.Script` when `--experimental-vm-modules` is not used even in the presence of the `importModuleDynamically` option, so that users affected by the performance regression can now upgrade. Ongoing work is also being done to enable compilation cache support for `vm.CompileFunction`. PR-URL: #52165

This PR contains the following updates: | Package | Update | Change | |---|---|---| | [node](https://nodejs.org) ([source](https://github.com/nodejs/node)) | minor | `18.19.1` -> `18.20.0` | --- ### Release Notes <details> <summary>nodejs/node (node)</summary> ### [`v18.20.0`](https://github.com/nodejs/node/releases/tag/v18.20.0): 2024-03-26, Version 18.20.0 'Hydrogen' (LTS), @richardlau [Compare Source](nodejs/node@v18.19.1...v18.20.0) ##### Notable Changes ##### Added support for import attributes Support has been added for import attributes, to replace the old import assertions syntax. This will aid migration by making the new syntax available across all currently supported Node.js release lines. This adds the `with` keyword which should be used in place of the previous `assert` keyword, which will be removed in a future semver-major Node.js release. For example, ```console import "foo" assert { ... } ``` should be replaced with ```console import "foo" with { ... } ``` For more details, see - [#50134](nodejs/node#50134) - [#51622](nodejs/node#51622) Contributed by Nicolò Ribaudo in [#51136](nodejs/node#51136) and Antoine du Hamel in [#50140](nodejs/node#50140). ##### Doc deprecation for `dirent.path` Please use newly added `dirent.parentPath` instead. Contributed by Antoine du Hamel in [#50976](nodejs/node#50976) and [#51020](nodejs/node#51020). ##### Experimental node-api feature flags Introduces an experimental feature to segregate finalizers that affect GC state. A new type called `node_api_nogc_env` has been introduced as the const version of `napi_env` and `node_api_nogc_finalize` as a variant of `napi_finalize` that accepts a `node_api_nogc_env` as its first argument. This feature can be turned off by defining `NODE_API_EXPERIMENTAL_NOGC_ENV_OPT_OUT`. Contributed by Gabriel Schulhof in [#50060](nodejs/node#50060). ##### Root certificates updated to NSS 3.98 Certificates added: - Telekom Security TLS ECC Root 2020 - Telekom Security TLS RSA Root 2023 Certificates removed: - Security Communication Root CA ##### Updated dependencies - ada updated to 2.7.6. - base64 updated to 0.5.2. - c-ares updated to 1.27.0. - corepack updated to 0.25.2. - ICU updated to 74.2. Includes CLDR 44.1 and Unicode 15.1. - npm updated to 10.5.0. Fixes a regression in signals not being passed onto child processes. - simdutf8 updated to 4.0.8. - Timezone updated to 2024a. - zlib updated to 1.3.0.1-motley-40e35a7. ##### vm: fix V8 compilation cache support for vm.Script Previously repeated compilation of the same source code using `vm.Script` stopped hitting the V8 compilation cache after v16.x when support for `importModuleDynamically` was added to `vm.Script`, resulting in a performance regression that blocked users (in particular Jest users) from upgrading from v16.x. The recent fixes allow the compilation cache to be hit again for `vm.Script` when `--experimental-vm-modules` is not used even in the presence of the `importModuleDynamically` option, so that users affected by the performance regression can now upgrade. Ongoing work is also being done to enable compilation cache support for `vm.CompileFunction`. Contributed by Joyee Cheung in [#49950](nodejs/node#49950) and [#50137](nodejs/node#50137). ##### Commits - \[[`c70383b8d4`](nodejs/node@c70383b8d4)] - **build**: support Python 3.12 (Shi Pujin) [#50209](nodejs/node#50209) - \[[`4b960c3a4a`](nodejs/node@4b960c3a4a)] - **build**: fix incorrect g++ warning message (Richard Lau) [#51695](nodejs/node#51695) - \[[`8fdea67694`](nodejs/node@8fdea67694)] - **crypto**: update root certificates to NSS 3.98 (Node.js GitHub Bot) [#51794](nodejs/node#51794) - \[[`812b126dd9`](nodejs/node@812b126dd9)] - **deps**: V8: cherry-pick [`d90d453`](nodejs/node@d90d4533b053) (Michaël Zasso) [#50077](nodejs/node#50077) - \[[`9ab8c3db87`](nodejs/node@9ab8c3db87)] - **deps**: update c-ares to 1.27.0 (Node.js GitHub Bot) [#51846](nodejs/node#51846) - \[[`c688680387`](nodejs/node@c688680387)] - **deps**: update c-ares to 1.26.0 (Node.js GitHub Bot) [#51582](nodejs/node#51582) - \[[`9498ac8a47`](nodejs/node@9498ac8a47)] - **deps**: compile c-ares with C11 support (Michaël Zasso) [#51410](nodejs/node#51410) - \[[`8fb743642f`](nodejs/node@8fb743642f)] - **deps**: update c-ares to 1.25.0 (Node.js GitHub Bot) [#51385](nodejs/node#51385) - \[[`7bea2d7c12`](nodejs/node@7bea2d7c12)] - **deps**: update zlib to 1.3.0.1-motley-40e35a7 (Node.js GitHub Bot) [#51274](nodejs/node#51274) - \[[`57a38c8f75`](nodejs/node@57a38c8f75)] - **deps**: update zlib to 1.3.0.1-motley-dd5fc13 (Node.js GitHub Bot) [#51105](nodejs/node#51105) - \[[`b0ca084a6b`](nodejs/node@b0ca084a6b)] - **deps**: update zlib to 1.3-22124f5 (Node.js GitHub Bot) [#50910](nodejs/node#50910) - \[[`4b43823f37`](nodejs/node@4b43823f37)] - **deps**: update zlib to 1.2.13.1-motley-5daffc7 (Node.js GitHub Bot) [#50803](nodejs/node#50803) - \[[`f0da591812`](nodejs/node@f0da591812)] - **deps**: update zlib to 1.2.13.1-motley-dfc48fc (Node.js GitHub Bot) [#50456](nodejs/node#50456) - \[[`16d28a883a`](nodejs/node@16d28a883a)] - **deps**: update base64 to 0.5.2 (Node.js GitHub Bot) [#51455](nodejs/node#51455) - \[[`13a9e81cb6`](nodejs/node@13a9e81cb6)] - **deps**: update base64 to 0.5.1 (Node.js GitHub Bot) [#50629](nodejs/node#50629) - \[[`b4502d3ac5`](nodejs/node@b4502d3ac5)] - **deps**: update simdutf to 4.0.8 (Node.js GitHub Bot) [#51000](nodejs/node#51000) - \[[`183cf8a74a`](nodejs/node@183cf8a74a)] - **deps**: update simdutf to 4.0.4 (Node.js GitHub Bot) [#50772](nodejs/node#50772) - \[[`11ba8593ea`](nodejs/node@11ba8593ea)] - **deps**: update ada to 2.7.6 (Node.js GitHub Bot) [#51542](nodejs/node#51542) - \[[`73a946d55c`](nodejs/node@73a946d55c)] - **deps**: update ada to 2.7.5 (Node.js GitHub Bot) [#51542](nodejs/node#51542) - \[[`cc434c1a39`](nodejs/node@cc434c1a39)] - **deps**: update ada to 2.7.4 (Node.js GitHub Bot) [#50815](nodejs/node#50815) - \[[`3a3808a6ae`](nodejs/node@3a3808a6ae)] - **deps**: upgrade npm to 10.5.0 (npm team) [#51913](nodejs/node#51913) - \[[`c8876d765c`](nodejs/node@c8876d765c)] - **deps**: upgrade npm to 10.3.0 (npm team) [#51431](nodejs/node#51431) - \[[`5aec3af460`](nodejs/node@5aec3af460)] - **deps**: update corepack to 0.25.2 (Node.js GitHub Bot) [#51810](nodejs/node#51810) - \[[`a593985326`](nodejs/node@a593985326)] - **deps**: update corepack to 0.24.1 (Node.js GitHub Bot) [#51459](nodejs/node#51459) - \[[`d1a9237bf5`](nodejs/node@d1a9237bf5)] - **deps**: update corepack to 0.24.0 (Node.js GitHub Bot) [#51318](nodejs/node#51318) - \[[`adac0c7a63`](nodejs/node@adac0c7a63)] - **deps**: update corepack to 0.23.0 (Node.js GitHub Bot) [#50563](nodejs/node#50563) - \[[`4a6f83e32a`](nodejs/node@4a6f83e32a)] - **deps**: escape Python strings correctly (Michaël Zasso) [#50695](nodejs/node#50695) - \[[`c13969e52a`](nodejs/node@c13969e52a)] - **deps**: V8: cherry-pick [`ea996ad`](nodejs/node@ea996ad04a68) (Nicolò Ribaudo) [#51136](nodejs/node#51136) - \[[`6fbf0ba5c3`](nodejs/node@6fbf0ba5c3)] - **deps**: V8: cherry-pick [`a0fd320`](nodejs/node@a0fd3209dda8) (Nicolò Ribaudo) [#51136](nodejs/node#51136) - \[[`68fd7516e1`](nodejs/node@68fd7516e1)] - **deps**: update timezone to 2024a (Michaël Zasso) [#51723](nodejs/node#51723) - \[[`f9b229ebe1`](nodejs/node@f9b229ebe1)] - **deps**: update icu to 74.2 (Michaël Zasso) [#51723](nodejs/node#51723) - \[[`90c73d2eb4`](nodejs/node@90c73d2eb4)] - **deps**: update timezone to 2023d (Node.js GitHub Bot) [#51461](nodejs/node#51461) - \[[`2a2bf57028`](nodejs/node@2a2bf57028)] - **deps**: update icu to 74.1 (Node.js GitHub Bot) [#50515](nodejs/node#50515) - \[[`425e011e52`](nodejs/node@425e011e52)] - **deps**: add v8::Object::SetInternalFieldForNodeCore() (Joyee Cheung) [#49874](nodejs/node#49874) - \[[`58c70344a2`](nodejs/node@58c70344a2)] - **deps**: V8: cherry-pick [`705e374`](nodejs/node@705e374124ae) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`b0e88899e1`](nodejs/node@b0e88899e1)] - **deps**: V8: cherry-pick [`1fada6b`](nodejs/node@1fada6b36f8d) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`d87a810b81`](nodejs/node@d87a810b81)] - **deps**: V8: cherry-pick [`3dd9576`](nodejs/node@3dd9576ce336) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`6d50966876`](nodejs/node@6d50966876)] - **deps**: V8: cherry-pick [`94e8282`](nodejs/node@94e8282325a1) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`fafbacdfec`](nodejs/node@fafbacdfec)] - **deps**: V8: cherry-pick [`9a98f96`](nodejs/node@9a98f96b6d68) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`d4a530ed8d`](nodejs/node@d4a530ed8d)] - **deps**: V8: cherry-pick [`7f5daed`](nodejs/node@7f5daed62d47) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`1ce901b164`](nodejs/node@1ce901b164)] - **deps**: V8: cherry-pick [`c400af4`](nodejs/node@c400af48b5ef) (Joyee Cheung) [#51004](nodejs/node#51004) - \[[`f232064f35`](nodejs/node@f232064f35)] - **doc**: fix historical experimental fetch flag (Kenrick) [#51506](nodejs/node#51506) - \[[`194ff6a40f`](nodejs/node@194ff6a40f)] - **(SEMVER-MINOR)** **doc**: add deprecation notice to `dirent.path` (Antoine du Hamel) [#50976](nodejs/node#50976) - \[[`0f09267dc6`](nodejs/node@0f09267dc6)] - **(SEMVER-MINOR)** **doc**: deprecate `dirent.path` (Antoine du Hamel) [#50976](nodejs/node#50976) - \[[`8bfb8f5b2f`](nodejs/node@8bfb8f5b2f)] - **doc,crypto**: further clarify RSA_PKCS1\_PADDING support (Tobias Nießen) [#51799](nodejs/node#51799) - \[[`c7baf7b274`](nodejs/node@c7baf7b274)] - **doc,crypto**: add changelog and note about disabled RSA_PKCS1\_PADDING (Filip Skokan) [#51782](nodejs/node#51782) - \[[`a193be3dc2`](nodejs/node@a193be3dc2)] - **esm**: use import attributes instead of import assertions (Antoine du Hamel) [#50140](nodejs/node#50140) - \[[`26e8f7793e`](nodejs/node@26e8f7793e)] - **(SEMVER-MINOR)** **fs**: introduce `dirent.parentPath` (Antoine du Hamel) [#50976](nodejs/node#50976) - \[[`5b5e5192f7`](nodejs/node@5b5e5192f7)] - **lib**: fix compileFunction throws range error for negative numbers (Jithil P Ponnan) [#49855](nodejs/node#49855) - \[[`7552de6806`](nodejs/node@7552de6806)] - **module**: fix the leak in SourceTextModule and ContextifySript (Joyee Cheung) [#48510](nodejs/node#48510) - \[[`2e05cf1c60`](nodejs/node@2e05cf1c60)] - **module**: fix leak of vm.SyntheticModule (Joyee Cheung) [#48510](nodejs/node#48510) - \[[`a86a2e14a3`](nodejs/node@a86a2e14a3)] - **module**: use symbol in WeakMap to manage host defined options (Joyee Cheung) [#48510](nodejs/node#48510) - \[[`32906ddcac`](nodejs/node@32906ddcac)] - **node-api**: segregate nogc APIs from rest via type system (Gabriel Schulhof) [#50060](nodejs/node#50060) - \[[`1aa71c26ff`](nodejs/node@1aa71c26ff)] - **node-api**: factor out common code into macros (Gabriel Schulhof) [#50664](nodejs/node#50664) - \[[`3d0b233f52`](nodejs/node@3d0b233f52)] - **node-api**: introduce experimental feature flags (Gabriel Schulhof) [#50991](nodejs/node#50991) - \[[`96514a8b9f`](nodejs/node@96514a8b9f)] - **src**: iterate on import attributes array correctly (Michaël Zasso) [#50703](nodejs/node#50703) - \[[`2c2892bf88`](nodejs/node@2c2892bf88)] - **src**: set ModuleWrap internal fields only once (Joyee Cheung) [#49391](nodejs/node#49391) - \[[`ff334cb774`](nodejs/node@ff334cb774)] - **src**: cast v8::Object::GetInternalField() return value to v8::Value (Joyee Cheung) [#48943](nodejs/node#48943) - \[[`270b519971`](nodejs/node@270b519971)] - **stream**: do not defer construction by one microtick (Matteo Collina) [#52005](nodejs/node#52005) - \[[`95d7a75084`](nodejs/node@95d7a75084)] - **test**: fix dns test case failures after c-ares update to 1.21.0+ (Brad House) [#50743](nodejs/node#50743) - \[[`cd613e5167`](nodejs/node@cd613e5167)] - **test**: handle relative https redirect (Richard Lau) [#51121](nodejs/node#51121) - \[[`40f10eafcf`](nodejs/node@40f10eafcf)] - **test**: fix `internet/test-inspector-help-page` (Richard Lau) [#51693](nodejs/node#51693) - \[[`5e426511b1`](nodejs/node@5e426511b1)] - **test**: deflake test-vm-contextified-script-leak (Joyee Cheung) [#49710](nodejs/node#49710) - \[[`0b156c6d28`](nodejs/node@0b156c6d28)] - **test**: use checkIfCollectable in vm leak tests (Joyee Cheung) [#49671](nodejs/node#49671) - \[[`1586c11b3c`](nodejs/node@1586c11b3c)] - **test**: add checkIfCollectable to test/common/gc.js (Joyee Cheung) [#49671](nodejs/node#49671) - \[[`902d8b3d4b`](nodejs/node@902d8b3d4b)] - **test**: fix flaky http-chunk-extensions-limit test (Ethan Arrowood) [#51943](nodejs/node#51943) - \[[`1743d2bdc1`](nodejs/node@1743d2bdc1)] - **test**: test surrogate pair filenames on windows (Mert Can Altın) [#51800](nodejs/node#51800) - \[[`1c1a7ec22d`](nodejs/node@1c1a7ec22d)] - **test**: increase platform timeout zlib-brotli-16gb (Rafael Gonzaga) [#51792](nodejs/node#51792) - \[[`931d02fe3e`](nodejs/node@931d02fe3e)] - **test, v8**: fix wrong import attributes test (Nicolò Ribaudo) [#52184](nodejs/node#52184) - \[[`d9ea6c1f8d`](nodejs/node@d9ea6c1f8d)] - **tls**: fix order of setting cipher before setting cert and key (Kumar Rishav) [#50186](nodejs/node#50186) - \[[`3184befa2e`](nodejs/node@3184befa2e)] - **tools**: fix update-icu.sh (Michaël Zasso) [#51723](nodejs/node#51723) - \[[`06646e11be`](nodejs/node@06646e11be)] - **(SEMVER-MINOR)** **vm**: use import attributes instead of import assertions (Antoine du Hamel) [#50141](nodejs/node#50141) - \[[`fe66e9d06e`](nodejs/node@fe66e9d06e)] - **vm**: reject in importModuleDynamically without --experimental-vm-modules (Joyee Cheung) [#50137](nodejs/node#50137) - \[[`052e095c6b`](nodejs/node@052e095c6b)] - **vm**: use internal versions of compileFunction and Script (Joyee Cheung) [#50137](nodejs/node#50137) - \[[`9f7899ed0a`](nodejs/node@9f7899ed0a)] - **vm**: unify host-defined option generation in vm.compileFunction (Joyee Cheung) [#50137](nodejs/node#50137) - \[[`6291c107d0`](nodejs/node@6291c107d0)] - **vm**: use default HDO when importModuleDynamically is not set (Joyee Cheung) [#49950](nodejs/node#49950) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).  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See e.g. what appears to be nodejs/node#51622.

shellscape · 2024-10-09T15:17:47Z

Did anyone consider that v18 is in maintenance for another year? We've got no path forward to support v18.x (less than 18.20.0) as well as v22 due to this change. Bananas.

nicolo-ribaudo · 2024-10-09T15:20:53Z

Its the latest version of v18 that is still supported for one year, and not versions below v18.20.

v18.19 is getting no security fixes, for example.

shellscape · 2024-10-09T15:22:29Z

@nicolo-ribaudo there are environments where that version is pinned and we have to support them. this effectively backported a breaking change to an older version.

nicolo-ribaudo · 2024-10-09T15:24:18Z

this effectively backported a breaking change to an older version.

A breaking change on a feature that was logging on your terminal "Warning: it might change at any time" in red every time you used it in any meaningful way 😅

shellscape · 2024-10-09T15:28:04Z

I don't think that language nor the emoji was necessary; I have not been disrespectful and am disappointed you've chosen to be. The project has consistently set reasonable expectations for experimental and deprecated features, and that expectation has been broken in this instance.

aduh95 · 2024-10-09T17:19:46Z

Did anyone consider that v18 is in maintenance for another year?

Obviously we did, you can read that in that very thread, and that's also why we spent time backporting support for with to v18.x branch.

We've got no path forward to support v18.x (less than 18.20.0) as well as v22 due to this change.

The only choice you have is either to drop support for Node.js <18.20 (recommended, as said above those do not receive security patches), or to build you own binaries including the commits for the new syntax support. I guess I'm not telling anything you don't already know though

I don't think that language nor the emoji was necessary; I have not been disrespectful and am disappointed you've chosen to be.

I'm not sure what language you found disrespectful, I personally interpret the tone of Nicolò's comments as friendly. Anyway, commenting on each other supposed intent is unlikely to result in a productive discussion, so let's not.

The project has consistently set reasonable expectations for experimental and deprecated features, and that expectation has been broken in this instance.

TBH we should probably break this more often for experimental features, having folks relying on experimental features, and complaining when it breaks (despite being clearly documented as "can break at any time") is such a pain. I very much disagree that "support until the end of maintenance cycle" is a reasonable expectation for experimental feature.

nicolo-ribaudo added the feature request Issues that request new features to be added to Node.js. label Jan 31, 2024

github-project-automation bot added this to Node.js feature requests Jan 31, 2024

github-project-automation bot moved this to Pending Triage in Node.js feature requests Jan 31, 2024

aduh95 mentioned this issue Feb 1, 2024

deps: add deprecation warning for import assertion syntax #51631

Closed

aduh95 added the release-agenda Issues and PRs to discuss during the meetings of the Release team. label Feb 2, 2024

nicolo-ribaudo mentioned this issue Mar 15, 2024

esm: drop support for import assertions #52104

Merged

richardlau mentioned this issue Mar 20, 2024

v18.20.0 proposal #52165

Merged

nicolo-ribaudo mentioned this issue Apr 13, 2024

2024-04-24, Version 22.0.0 (Current) #52505

Merged

nodejs-github-bot closed this as completed in #52104 Apr 19, 2024

Julian added a commit to bowtie-json-schema/bowtie that referenced this issue May 2, 2024

Update import syntax for node 22 in implementations.

2fae5a6

See e.g. what appears to be nodejs/node#51622.

RedYetiDev moved this from Awaiting Triage to Done in Node.js feature requests Jun 27, 2024

peterwooley mentioned this issue Jul 10, 2024

SyntaxError when run with Node 22+ because of the removed assert syntax davidkeipert/tikfav#10

Open

theogravity mentioned this issue Aug 19, 2024

Broken in node v22 FusionAuth/fusionauth-node-cli#14

Open

bhousel mentioned this issue Sep 10, 2024

Change import assertions to import attributes osmlab/name-suggestion-index#9907

Merged

This was referenced Sep 11, 2024

Undocumented requirements on Node version for building the site mdn/content#35825

Closed

Migrate deprecated 'assert' import syntax, bump to Node 18.20 mdn/content#35826

Merged

RedYetiDev removed this from Node.js feature requests Sep 13, 2024

jamesgpearce mentioned this issue Sep 13, 2024

Fails in node22: because of assert { type: "json" }; vlcn-io/cr-sqlite#443

Open

thoukydides mentioned this issue Sep 16, 2024

Can't configure the plugin. thoukydides/homebridge-homeconnect#298

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5 tasks

peterpeterparker mentioned this issue Nov 14, 2024

chore: replace assert for with to adapt dynamic import junobuild/juno#803

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Re-flag `assert` syntax for import attributes in Node.js 22 #51622

Re-flag `assert` syntax for import attributes in Node.js 22 #51622

nicolo-ribaudo commented Jan 31, 2024

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aduh95 commented Feb 2, 2024

nicolo-ribaudo commented Mar 15, 2024 •

edited

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aduh95 commented Oct 9, 2024

Re-flag assert syntax for import attributes in Node.js 22 #51622

Re-flag assert syntax for import attributes in Node.js 22 #51622

Comments

nicolo-ribaudo commented Jan 31, 2024

What is the problem this feature will solve?

What is the feature you are proposing to solve the problem?

What alternatives have you considered?

aduh95 commented Jan 31, 2024

richardlau commented Jan 31, 2024

GeoffreyBooth commented Jan 31, 2024

joyeecheung commented Jan 31, 2024

mcollina commented Feb 1, 2024

aduh95 commented Feb 2, 2024

nicolo-ribaudo commented Mar 15, 2024 • edited Loading

GeoffreyBooth commented Mar 15, 2024

nicolo-ribaudo commented Mar 15, 2024

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shellscape commented Oct 9, 2024

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shellscape commented Oct 9, 2024

aduh95 commented Oct 9, 2024

Re-flag `assert` syntax for import attributes in Node.js 22 #51622

Re-flag `assert` syntax for import attributes in Node.js 22 #51622

nicolo-ribaudo commented Mar 15, 2024 •

edited

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