[wp-trac] [WordPress Trac] #62997: Put the final nail in the coffin of shared terms

[WordPress Trac]

#62997: Put the final nail in the coffin of shared terms
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 Reporter:  johnbillion               |       Owner:  johnbillion
     Type:  enhancement               |      Status:  accepted
 Priority:  normal                    |   Milestone:  6.9
Component:  Taxonomy                  |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
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Comment (by johnbillion):

 Replying to [comment:4 jorbin]:
 > I think there is a step that needs to take place first and that is for
 4.3 and earlier to no longer be receiving security updates

 I don't quite follow here. Can you clarify?

 > This will be a rare (first that I can think of off the top of my head)
 instance where a site will not be able to "just upgrade" from any version
 to the latest version

 I agree that this would likely be the first ''explicit'' instance, however
 I'm yet to determine whether it's actually possible to update from 4.2 to
 6.8 in one go due to minimum supported PHP version constraints. 4.2 only
 officially supports PHP up to 5.6, but 6.8 requires 7.2 or higher. So a
 user would need to first be running WordPress 4.2 on PHP 7.2 or higher for
 the update to be possible. Does it work? I've yet to get an environment
 running to try it, although [https://github.com/WordPress/wordpress-
 develop/actions/runs/13288295242/job/37103951478 the upgrade tests on
 GitHub Actions indicate that it does]. I will look into it further.

 > Additionally, for the breaking change to go in I think we will need to
 make sure that the updates API never offers whatever version this is in to
 sites below 4.3.

 Yeah I think I agree, although the changes I'm proposing to `upgrade.php`
 will prevent the upgrade from proceeding if a user does attempt it. But
 yes it would be complementary to also make that change.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62997#comment:5>
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