[wp-trac] [WordPress Trac] #48456: Update CodeMirror to latest v5 version

[WordPress Trac]

#48456: Update CodeMirror to latest v5 version
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 Reporter:  TobiasBg                       |       Owner:  westonruter
     Type:  enhancement                    |      Status:  accepted
 Priority:  normal                         |   Milestone:  7.0
Component:  External Libraries             |     Version:  4.9
 Severity:  normal                         |  Resolution:
 Keywords:  early has-patch needs-testing  |     Focuses:  javascript
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Comment (by westonruter):

 Once this is fixed I'm keen to explore the v6 upgrade, which will be much
 more liable to cause backwards compatibility breakages for extensions. But
 hopefully we can find shims to help bridge the gap.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48456#comment:16>
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