Sergey Biryukov 08d1cf7509 Database: Update default DB_CHARSET to utf8mb4 in wp-config-sample.php. ...

`utf8mb4` is the complete UTF-8 implementation in MySQL, supporting the full range of Unicode characters by using up to 4 bytes per character. This includes characters outside the Basic Multilingual Plane, such as emoji and supplementary characters. `utf8mb4` ensures full compatibility with modern text content and diverse character sets.

As of WordPress 4.2, on both new and existing installations, WordPress would automatically upgrade database tables to `utf8mb4` on compatible servers (MySQL 5.5.3 or later). However, the default `DB_CHARSET` value during setup was still set to `utf8` for compatibility with older MySQL versions.

As of WordPress 6.5, the minimum required MySQL version is 5.5.5, so the default can be updated to `utf8mb4`.

Follow-up to [30345], [31349], [57173], [57926].

Props bchecketts, JavierCasares, dmsnell, SergeyBiryukov.
Fixes #48285.
Built from https://develop.svn.wordpress.org/trunk@60629


git-svn-id: http://core.svn.wordpress.org/trunk@59965 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2025-08-12 14:47:31 +00:00

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