I have just updated my X theme and Woo Commerce to the latest versions - I have now got the following message in the back office:
Your theme (X – Child Theme) contains outdated copies of some WooCommerce template files.
Having a look it is this file:
x/woocommerce/single-product-reviews.php version 2.3.2 is out of date. The core version is 3.2.0
Please advise - I will send the login details in a secure note