The WooCommerce 2.2.10 release is now available via WordPress.org or automatic update in your administration panel.
This release fixes the ‘stock status issue on quick and bluk edit’ bug and the ‘incorrect clearing of error messages on checkout’ bug both introduced in version 2.2.9. You can view the full changelog here. A total of 8 commits made it into this release.
(As always, the comments on this post are closed because this is not the right platform for support requests.)