Fedora 33 System-Wide Change proposal: Node.js 14.x by default

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https://fedoraproject.org/wiki/Changes/Nodejs14x

== Summary ==
The latest release of Node.js to carry a 30-month lifecycle is the
14.x series. As with 12.x, 10.x and 8.x before it, Fedora 33 will
carry 14.x as the default Node.js interpreter for the system. The 12.x
interpreter will remain available as a non-default module stream.

== Owner ==
* Name: [[User:zvetlik| Zuzana Svetlikova]]
* Email: zsvetlik@xxxxxxxxxx
* Name: [[User:Sgallagh| Stephen Gallagher]]
* Email: sgallagh@xxxxxxxxxxxxxxxxx
* Responsible SIG: Node.js SIG


== Detailed Description ==
Fedora 33 will ship with the latest LTS version of Node.js by default.
This will either be the `nodejs:14` module stream or else replicated
to the non-modular repository, depending on the status of other
release engineering work around supporting modular content in the
non-modular buildroots. To end-users, the experience should be
identical: `dnf install nodejs` will give them `nodejs-14.x` and the
matching `npm` package.

== Benefit to Fedora ==
Node.js is a popular server-side JavaScript engine. Keeping Fedora on
the latest release allows us to continue tracking the state-of-the-art
in that space. For those whose applications do not yet work with the
14.x release, Fedora 33 will also have the 12.x release available as a
selectable module stream.

== Scope ==
* Proposal owners:
The packages are already built for Fedora 33 in a non-default module
stream. On June 14th, 2020, the nodejs-14.x packages will become the
default in Fedora 33 (either by making the 14.x module stream be the
default stream or by rebuilding the packages as non-modular, depending
on other factors).

* Other developers: Any developer with a package that depends on
Node.js at run-time or build-time should test with the 14.x module
stream enabled as soon as possible. Issues should be reported to
nodejs@xxxxxxxxxxxxxxxxxxxxxxx

* Release engineering: [https://pagure.io/releng/issue/9426 #9426]
Release engineering and FESCo will need to approve the change to the
default module stream.

* Policies and guidelines: N/A (not needed for this Change)
* Trademark approval: N/A (not needed for this Change)


== Upgrade/compatibility impact ==
As with previous releases, users running Fedora 31 or Fedora 32 with
the non-modular nodejs-12.x packages will be automatically upgraded to
the 14.x packages, which may cause issues. If users are running
software known not to support Node.js 14.x yet, they can switch the
system to use 12.x with dnf module commands.

== How To Test ==
* Confirm that `dnf install nodejs` results in Node.js 14.x being installed.
* Confirm that upgrading from Fedora 31 or Fedora 32 with nodejs-12.x
installed (non-modular) results in an upgrade to nodejs-14.x
* Confirm that upgrading from Fedora 31 or Fedora 32 with the
`nodejs:12` module enabled does *not* result in an upgrade to 14.x and
still has `nodejs:12` enabled on Fedora 33.
* Confirm that upgrading from Fedora 31 or Fedora 32 with the
`nodejs:14` module enabled upgrades successfully and still has
`nodejs:14` enabled on Fedora 33.

== User Experience ==
Users will have the 14.x release of Node.js available by default. See
the "Upgrade/compatibility impact" section for specific details.

== Dependencies ==
All packages prefixed with `nodejs-` depend on this package. If they
do not work with Node.js 14.x, they will need to be updated, made
modular and dependent upon the `nodejs:12` stream or else removed from
Fedora 33.

Prior to the switchover date to Node.js 14.x as the default, packagers
are strongly encouraged to test their existing Node modules with 14.x
via the Modular version by running:

```
dnf reset nodejs
dnf module install nodejs:12/development
```

== Contingency Plan ==
* Contingency mechanism:
Revert to Node.js 12.x as the default stream. This may require bumping
epoch or making the `nodejs:12` stream the default, depending on the
status of the modules-in-non-modular-buildroot work at the time.

* Contingency deadline: Beta Freeze
* Blocks release? No
* Blocks product? No

== Documentation ==
* https://nodejs.org/dist/latest-v14.x/docs/api/
* https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V14.md

== Release Notes ==
Fedora 33 now ships with Node.js 14.x as the default Node.js
JavaScript server-side engine. If your applications are not yet ready
for this newer version, you can revert to the 12.x series by running
the following commands

<pre>
dnf remove nodejs
dnf module reset nodejs
dnf module install nodejs:14
</pre>


-- 
Ben Cotton
He / Him / His
Senior Program Manager, Fedora & CentOS Stream
Red Hat
TZ=America/Indiana/Indianapolis
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