Re: F35 Change: Node.js 16.x by default (System-Wide Change proposal)

[Stephen Gallagher]

Just a quick reminder, this switch will be occurring in a little over
three weeks, so make sure to test your NPM packages with Node.js 16.x!

On Thu, Apr 29, 2021 at 3:46 PM Ben Cotton <bcotton(a)redhat.com&gt; wrote:
>  https://fedoraproject.org/wiki/Changes/Nodejs16
>
>  == Summary ==
>  The latest release of Node.js to carry a 30-month lifecycle is the
>  16.x series. As with 14.x, 12.x, 10.x and 8.x before it, Fedora 35
>  will carry 16.x as the default Node.js interpreter for the system. The
>  14.x and 12.x interpreters will remain available as non-default module
>  streams.
>
>  == Owner ==
>  * Name: [[User:zvetlik| Zuzana Svetlikova]]
>  * Email: zsvetlik(a)redhat.com
>  * Name: [[User:Sgallagh| Stephen Gallagher]]
>  * Email: sgallagh(a)fedoraproject.org
>  * Responsible SIG: Node.js SIG
>
>
>
>  == Detailed Description ==
>  Fedora 35 will ship with the latest LTS version of Node.js. '''dnf
>  install nodejs''' will give users nodejs-16.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
>  16.x release, Fedora 35 will also have the 14.x and 12.x releases
>  available as selectable module streams.
>
>  == Scope ==
>  * Proposal owners: The packages are already built for Fedora 33, 34
>  and 35 in a non-default module stream. On June 14th, 2021, the
>  nodejs-16.x packages will be built in the non-modular repository and
>  thus become the default in Fedora 35.
>
>  * Other developers: Any developer with a package that depends on
>  Node.js at run-time or build-time should test with the 16.x module
>  stream enabled as soon as possible. Issues should be reported to
>  nodejs(a)lists.fedoraproject.org
>
>  * Release engineering: We will coordinate with the Node.js SIG to
>  create a side-tag to perform the rebuilds before making 16.x the
>  default.
>  * 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 33 or Fedora 34 with
>  the non-modular nodejs-14.x packages will be automatically upgraded to
>  the 16.x packages when they upgrade to Fedora 35, which may cause
>  issues. If users are running software known not to support Node.js
>  16.x yet, they can switch the system to use 14.x with '''dnf
> module'''
>  commands.
>
>  == How To Test ==
>  * Confirm that `dnf install nodejs` results in Node.js 16.x being installed.
>  * Confirm that upgrading from Fedora 33 or Fedora 34 with nodejs-14.x
>  installed (non-modular) results in an upgrade to nodejs-16.x
>  * Confirm that upgrading from Fedora 33 or Fedora 34 with the
>  `nodejs:14` module enabled does *not* result in an upgrade to 16.x and
>  still has `nodejs:14` enabled on Fedora 35.
>  * Confirm that upgrading from Fedora 33 or Fedora 34 with the
>  `nodejs:16` module enabled upgrades successfully and still has
>  `nodejs:16` enabled on Fedora 33.
>
>  == User Experience ==
>  Users will have the 16.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 16.x, they will need to be updated, made
>  modular and dependent upon the `nodejs:14` stream or else removed from
>  Fedora 35.
>
>  Prior to the switchover date to Node.js 16.x as the default, packagers
>  are strongly encouraged to test their existing Node modules with 16.x
>  via the Modular version by running:
>
>  <pre>
>  dnf module reset nodejs
>  dnf module install nodejs:16/development
>  </pre>
>
>  Packagers can also test their builds using `mock` by creating the file
>  `/etc/mock/fedora-rawhide-x86_64-nodejs16.cfg` with the following
>  contents:
>
>  <pre>
>  config_opts['target_arch'] = 'x86_64'
>  config_opts['legal_host_arches'] = ('x86_64',)
>  config_opts['enable_disable_repos'] = ['--enablerepo',
> 'rawhide-modular']
>  config_opts['module_install'] = ['nodejs:16/development']
>
>  include('templates/fedora-rawhide.tpl')
>  </pre>
>
>  Then call
>  <pre>
>  mock -r fedora-rawhide-x86_64-nodejs16 --enablerepo=rawhide-modular nodejs-foo
>  </pre>
>
>  (Note that the `--enablerepo=rawhide-modular` portion looks redundant,
>  but this is because of
>  [https://github.com/rpm-software-management/mock/issues/591 a mock
>  bug])
>
>  == Contingency Plan ==
>  * Contingency mechanism:
>  Revert to Node.js 14.x as the default Node.js interpreter. This will
>  require bumping epoch.
>
>  * Contingency deadline: Beta Freeze
>  * Blocks release? No
>  * Blocks product? No
>
>  == Documentation ==
>  * https://nodejs.org/dist/latest-v16.x/docs/api/
>  * https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V16.md
>
>  == Release Notes ==
>  Fedora 35 now ships with Node.js 16.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 14.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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