[wp-trac] [WordPress Trac] #54348: Update TinyMCE to 5.10

[WordPress Trac]

#54348: Update TinyMCE to 5.10
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 Reporter:  SteelWagstaff      |      Owner:  (none)
     Type:  enhancement        |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  General            |    Version:
 Severity:  normal             |   Keywords:
  Focuses:  ui, accessibility  |
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 WordPress' Classic editor makes use of TinyMCE. The current version of
 TinyMCE used by WordPress is 4.9.11
 (https://github.com/WordPress/WordPress/commit/e503ee45d60171b0ecaf16a615a079a25c54ac55).
 This version of TinyMCE has been out of support since the end of 2020. The
 current version of TinyMCE is 5.10. Recent versions of TinyMCE include
 several improvements that would be useful for WordPress users who continue
 to use the Classic Editor rather than Gutenberg, including several
 accessibility improvements and security fixes (see
 https://www.tiny.cloud/docs/release-notes/ for specific details). Now that
 support for Classic Editor has been extended through the end of 2022
 (https://wordpress.org/news/2021/08/an-update-on-the-classic-editor-
 plugin/), it would be nice to update TinyMCE to a version which will be
 supported through that window (5.9 or 5.10). This guide includes relevant
 details for projects which intend to upgrade from v4 to v5:
 https://www.tiny.cloud/docs/migration-from-4x/.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54348>
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