Version 1.6.21, changelog and .pot file updatees

changelog.txt

@@ -1,5 +1,19 @@
 *** Changelog ***
 
+= 1.6.21 - 2020-04-14 =
+* Fix - Ensure Puerto Rico and supported Locales are eligible for PayPal Credit. PR#693
+* Fix - Support purchasing subscriptions with $0 initial payment - free trials, synced etc. PR#698
+* Fix - Only make the billing fields optional during an active PayPal Checkout session. PR#697
+* Fix - Uncaught JS errors on product page when viewing and out-of-stock product. PR#704
+* Fix - Loading API certificates and improves managing certificate settings. PR#696
+* Fix - Displaying PayPal Smart Payment buttons on pages with single product shortcode. PR#665
+* Fix - Do not add discounts to total item amount and cause line item amount offset. PR#677
+* Fix - Redirect to Confirm your PayPal Order page for subscriptions initial purchases using PayPal Smart Buttons. PR#702
+* Fix - Display missing checkout notice when email format is incorrect. PR#708
+* Add - Filter product form validity via a new `wc_ppec_validate_product_form` event. PR#695
+* Add - Translation tables for states of more countries. PR#659
+* Update - WooCommerce 4.0 compatibility
+
 = 1.6.20 - 2020-02-18 =
 * Fix - Upgrade the plugin on plugins loaded rather than on plugin init. PR#682