From release notes:
Magento Open Source 2.4.4 introduces support for PHP 8.1. All project libraries and dependencies have been updated for compatibility with PHP 8.1. Core Composer dependencies and third-party libraries have also been upgraded to the latest versions that are compatible with PHP 8.1. This release also provides support for OpenSearch 1.2.
This release includes almost 250 quality fixes and enhancements.
submitted by /u/levashovbiz
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