Support cards that do not request a postal/zip code

CRM/Core/Payment/Stripe.php

@@ -302,9 +302,12 @@ class CRM_Core_Payment_Stripe extends CRM_Core_Payment {
       $billingLocationID = CRM_Core_BAO_LocationType::getBilling();
     }
 
-    // Stripe does not require the state/county field
-    if (!empty($metadata["billing_state_province_id-{$billingLocationID}"]['is_required'])) {
-      $metadata["billing_state_province_id-{$billingLocationID}"]['is_required'] = FALSE;
+    // Stripe does not require some of the billing fields but users may still choose to fill them in.
+    $nonRequiredBillingFields = ["billing_state_province_id-{$billingLocationID}", "billing_postal_code-{$billingLocationID}"];
+    foreach ($nonRequiredBillingFields as $fieldName) {
+      if (!empty($metadata[$fieldName]['is_required'])) {
+        $metadata[$fieldName]['is_required'] = FALSE;
+      }
     }
 
     return $metadata;

docs/release/release_notes.md

+## Release 6.0.1
+
+* Support cards that do not request a postal/zip code.
+
 ## Release 6.0
 
 *Switch to Stripe Elements for SAQ-A compliance on most sites and support the European Secure Customer Authentication (SCA) payments directive.*

info.xml

@@ -12,8 +12,8 @@
     <author>Matthew Wire (MJW Consulting)</author>
     <email>mjw@mjwconsult.co.uk</email>
   </maintainer>
-  <releaseDate>2019-09-13</releaseDate>
-  <version>6.0</version>
+  <releaseDate>2019-09-14</releaseDate>
+  <version>6.0.1</version>
   <develStage>stable</develStage>
   <compatibility>
     <ver>5.13</ver>