This release reverts a change that was added with 4.9.0 and was causing issues with mail being sent out for few extensions.

This release contains only a single change:

Reverts #28204 to ensure compatibility with extensions using legacy do_action calls. #28835

Thanks to everyone for reporting this issue promptly and helping out with the fix release.

You can download the latest release of WooCommerce here or visit Dashboard → Updates to update the plugin from your WordPress admin screen.

WooCommerce 4.9.1 Fix Release