[wp-trac] [WordPress Trac] #55443: Create WebP sub-sizes and use for output

[WordPress Trac]

#55443: Create WebP sub-sizes and use for output
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 Reporter:  adamsilverstein                      |       Owner:
                                                 |  adamsilverstein
     Type:  enhancement                          |      Status:  assigned
 Priority:  normal                               |   Milestone:  6.0
Component:  Media                                |     Version:  trunk
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests needs-      |     Focuses:
  testing needs-dev-note needs-docs needs-codex  |  performance
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Comment (by pbiron):

 In a comment on the [https://make.wordpress.org/core/2022/03/28/enabling-
 webp-by-default/#comment-42739 Enabling WebP by default] make/core post I
 asked "if a site already has a bunch of JPEGs in the media library, will
 regenerating the thumbnails (intermediate sizes) via either `wp media
 regenerate` or a plugin like [https://wordpress.org/plugins/regenerate-
 thumbnails/ Regenerate Thumbnails] automatically produce the WebP
 versions?"

 Just reporting here that I have now tested this with WP 5.9.2,
 [https://wordpress.org/plugins/performance-lab/ Performance Lab]
 1.0.0-beta.3, WP-CLI 2.6.0, and `Regenerate Thumbnails` 3.1.5 and it all
 works as I expected it to.

 Nice work!

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Ticket URL: <https://core.trac.wordpress.org/ticket/55443#comment:13>
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