[wp-trac] [WordPress Trac] #49751: Old Featured Images (Thumbnails) Broken in 5.4

[WordPress Trac]

#49751: Old Featured Images (Thumbnails) Broken in 5.4
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 Reporter:  ispreview        |       Owner:  (none)
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  5.4.1
Component:  Post Thumbnails  |     Version:  5.4
 Severity:  major            |  Resolution:
 Keywords:                   |     Focuses:
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Comment (by ispreview):

 Replying to [comment:12 whyisjake]:
 > It sounds like this is a plugin issue, not directly related to core
 changes. I am thinking we can bump from the 5.4.1 milestone and close with
 `invalid`.

 It is indeed, much as I said earlier, but the issue here is that it's from
 quite a popular set of image plugins that are no longer supported (at
 least the way images were handled back then isn't supported anymore with
 WP5.4's change). Featured images have broken for tens of thousands of
 articles over many years, so I was just hoping there might be a better
 solution than to ignore the backwards compatibility issues created.

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Ticket URL: <https://core.trac.wordpress.org/ticket/49751#comment:13>
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