In 2026 these PHP versions are relevant:
PHP 8.3 (latest)
Fastest, newest features. Use it for new projects.
PHP 8.2
Stable, compatible with most plugins and frameworks.
PHP 8.0/8.1
Still usable but upgrade is recommended.
PHP 7.4
Deprecated, no security updates. Migrate.
How to switch
In Plesk on Sayt.uz: "PHP Settings" → pick the version.