2.3.9 patch does not work on 2.3.7

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nocte

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Feb 6, 2026
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This is what i get on rebuild master data after uploading the patch files from https://xenforo.com/community/threads/xenforo-2-3-9-inc-xfmg-2-2-18-released-security-fix.235659/ to a XF 2.3.7 installation.

Code:

Code:

user@web /home/forum/web $ php cmd.php xf:rebuild-master-data
PHP Fatal error:  Uncaught ErrorException: [E_WARNING] The use statement with non-compound name 'array_key_exists' has no effect in /home/forum/web/src/XF/Container.php:6
Stack trace:
#0...