[wp-trac] [WordPress Trac] #55604: Update SimplePie to version 1.8.0

[WordPress Trac]

#55604: Update SimplePie to version 1.8.0
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 Reporter:  jrf                                  |       Owner:  (none)
     Type:  task (blessed)                       |      Status:  new
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  External Libraries                   |     Version:  6.0
 Severity:  normal                               |  Resolution:
 Keywords:  needs-dev-note early needs-unit-     |     Focuses:
  tests 2nd-opinion has-patch                    |
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Comment (by SergeyBiryukov):

 Replying to [comment:46 jrf]:
 > For the record, the following two tests in the WP Core test suite would
 currently fail on the version of SimplePie which is used by WP not being
 compatible with PHP 8.4:
 > * `WP_Test_REST_Widgets_Controller::test_get_items()`
 > * `Tests_Widgets_wpWidgetRss::test_url_happy_path with data set "when
 url is given"`

 Spent some time looking into this, and [https://github.com/WordPress
 /wordpress-develop/pull/7441 PR 7441] is my attempt at updating SimplePie
 to version 1.8.0, with those tests (and all others) passing.

 Replying to [ticket:55604 jrf]:
 > As WP currently only includes the files in the `library` directory, I
 would like to suggest to continue doing so for now.
 > This still makes the ''forward-compatibility'' layer available as all
 files in the `library` directory now create a ''class alias'' to their
 namespaced version.
 >
 > Once 2.0.0 has been released, the files included in WP, should be
 switched to the files from the `src` directory (which is currently in
 place mostly to allow for Composer autoloading) and should start using the
 namespaced names for the SimplePie classes.

 It appears that PSR-4 namespaced classes are used as of 1.7.0, so in my
 understanding both `library` and `src` directories are now necessary.
 Would that be correct?

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Ticket URL: <https://core.trac.wordpress.org/ticket/55604#comment:48>
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