Requirements

Requirements

What you need to run HOF without sadness.

minimum

	Minimum	Recommended
PHP	8.2	8.3+
WordPress	6.4	latest
WooCommerce (if filtering products)	8.0	latest
MySQL	8.0.31	latest
Memory limit	128M	256M+

Important

MySQL 8.0.31 or newer is required. The resolver runs on the SQL INTERSECT operator, which MySQL added in 8.0.31. MariaDB does not implement INTERSECT the same way and is not supported.

We also don't support PHP 7.x. PHP 7.4 has been EOL since November 2022. If your host is still on it, ask them why.

hosting notes

• Shared hosting: Works on most. The indexer is chunked specifically so cheap hosts don't choke.
• Object cache (Redis, Memcached): Strongly recommended. HOF respects WP transients.
• CDN / page cache: Compatible. Facet queries are designed to bypass full-page cache cleanly.
• Bedrock / Composer-managed WP: First-class. We ship a real composer.json.

browser support

HOF's frontend runtime targets modern evergreen browsers:

• Chrome / Edge: last 2 versions
• Firefox: last 2 versions
• Safari: 15+
• iOS Safari: 15+

If your audience is on IE11, HOF is not for you. (Neither is the year 2026.)