* Fix: All Products for WooCommerce Subscriptions `wc-mnm-validation-status-changed` event callback not firing, fixes hide/show of schemes.
* Fix: Do not display $0.00 price as Free! for per-item priced containers unless enabled via `add_filter( 'wc_mnm_container_show_free_string', '__return_true' );`
* Fix: Launch PayPal compatibility module to disable Smart Pay Buttons on Name Your Price products.
* Tweak: Replace `wc_mnm_show_free_string` with existing `wc_mnm_container_show_free_string` filter.

* Fix – Address possible checkout errors when using very specific patch versions of PHP 8.0.x and 8.1.x
* Misc – Update the SkyVerge Plugin Framework to v6.1.4

* Fix – Replace per-request static memo with database-backed transients to prevent OAuth token failures persisting across PHP-FPM requests.

* Add – Royal Mail and Parcelforce rates effective April 7, 2026.
* Add – Manual "Sync rates from local files" button in WooCommerce → Settings → Shipping → Royal Mail.
* Tweak – Migrate rate data from hardcoded PHP arrays to local JSON files; rates are cached in the database and re-synced automatically on plugin update.

* Fix – Prevent PHP warnings for undefined destination address keys in REST and Legacy API rate requests when address is incomplete.
* Fix – Prevent JavaScript error in block checkout when UPS extension data is not yet available.