[wp-trac] [WordPress Trac] #45073: Upgrading to 5.0 and handling the Gutenberg plugin

[WordPress Trac]

#45073: Upgrading to 5.0 and handling the Gutenberg plugin
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 Reporter:  mcsf             |      Owner:  mcsf
     Type:  defect (bug)     |     Status:  assigned
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Upgrade/Install  |    Version:  trunk
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 Once 5.0 lands, a process will be needed through which users running 4.9.*
 with the Gutenberg plugin activated can have the plugin automatically
 deactivate upon upgrading to 5.0. As is expected.

 As a feature plugin, Gutenberg differs slightly in a couple of ways:

 - Gutenberg development — phase 2 and beyond — will continue via the
 plugin. A small subset of users may be interested in remaining on the
 faster-iterating cycle of the plugin.
 - The feature being merged, i.e. the new editor, can be disabled by way of
 a second plugin: Classic Editor. Although everything is being done to
 eschew its need, it will nevertheless be sought by many.

 These beg a few of questions:

 - How much information should be offloaded to the “Welcome to 5.0” post-
 upgrade page and what should we handle separately?
 - Should we account for the prospective intent of some users to keep using
 the Gutenberg plugin?
 - Should the message conveyed vary depending on a user’s installed plugins
 (Gutenberg, Classic Editor)?

 The overarching goal for the entire process should be to **minimize the
 user’s burden** of choice, especially upfront choice (e.g. requiring a
 decision before trying the changes), and the anxiety that comes with it.

 Thus a tentative flow could be:

 1. User requests 5.0 upgrade.
 2. Upgrade is carried through.
 3. In the process, the Gutenberg plugin is deactivated. No user action is
 required (nor is any explicit notice of this deactivation necessary).

 And that’s it in terms of flow. After the upgrade, the 5.0 Welcome page
 should present Gutenberg as a highlight of the release. Perhaps this page
 is enough.

 If not, should a [https://make.wordpress.org/core/2018/08/02/try-
 gutenberg-callout-in-wordpress-4-9-8/ callout-like] header appear in WP-
 Admin, letting users know about the Gutenberg plugin and/or Classic
 Editor?

 cc @pento

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Ticket URL: <https://core.trac.wordpress.org/ticket/45073>
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