ConfigurationBothReviewed 2026-10-25

Compatibility and versions

Current recommended stable pair: Availability Free 2.5.9 and Availability Pro 1.1.1. Update Free first, then Pro, and keep both active. This recommendation is separate from the declared minimum requirements.

Published headers require WordPress 6.9+, PHP 7.4+ and WooCommerce 10.9+. For Availability Pro 1.1.1, WooCommerce 11.0 is the declared tested-up-to version, not a higher minimum. Pro retains its existing declared Core/API minimum of 2.5.0-dev.1. Use Free 2.5.9 before Pro 1.1.1 for the current stable upgrade.

Earlier reported coverage includes PHP 8.1/8.4, HPOS, classic checkout and Cart/Checkout Blocks. Declared support and exact tested combinations are separate; consult the current release evidence for the environments and checkout coverage actually executed.

Fresh versus migrated installations

A fresh install creates no locations and has no legacy behavior enabled. Migrated v1.9 installations preserve legacy options/assignments and can expose Legacy Compatibility controls. Run the bundled read-only legacy preflight before replacing v1.9, keep its checksums with the backup, and review fallback-dependent products before disabling compatibility.

Support for Leanmerce Product Availability by Location →