[wp-trac] [WordPress Trac] #37688: Issues with utf8mb4 collation and the 4.5 update

[WordPress Trac]

#37688: Issues with utf8mb4 collation and the 4.5 update
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 Reporter:  Hristo Sg     |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Database      |    Version:  4.6
 Severity:  normal        |   Keywords:
  Focuses:  performance   |
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 If you have a pre-4.6 WP install with charset configured in the wp-
 config.php file and set to utf8mb4:

 define('DB_CHARSET', 'utf8mb4');

 After the update, all site symbols including those in the options table
 are converted into incorrect characters.

 If you comment out the line:

 #define('DB_CHARSET', 'utf8mb4');

 The website starts showing characters correctly.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37688>
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