[wp-trac] [WordPress Trac] #48955: WP 5.3.1 changes cause potential backwards compatibility breakage with kses

[WordPress Trac]

#48955: WP 5.3.1 changes cause potential backwards compatibility breakage with kses
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 Reporter:  iCaleb        |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Security      |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by iCaleb):

 We're seeing quite a few errors stem from this unfortunately on a number
 of sites, with some PHP errors coming from popular plugins.

 It does highlight incorrect usage and potential assumptions that lead to
 security issues, but I'd argue this sort of change would better be made
 with advanced notice. Or potentially even deprecation notices followed by
 strict type checking later on.

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Ticket URL: <https://core.trac.wordpress.org/ticket/48955#comment:2>
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