Update docs

docs/index.md

@@ -13,8 +13,10 @@ View this extension in the [Extension Directory](https://civicrm.org/extensions/
 * Jquery 1.10 (Use jquery_update module on Drupal).
 * Drupal 7 / Joomla / Wordpress (latest supported release). *Not currently tested with other CMS but it may work.*
 * Stripe API version: 2019-09-09
-* Drupal webform_civicrm 7.x-4.28+ (if using webform integration) - does NOT support test mode:
-  > If using test mode with drupal webform_civicrm you need [this patch](https://github.com/colemanw/webform_civicrm/pull/266)
+* Drupal webform_civicrm 7.x-4.28+ (if using webform integration) - does NOT support test mode:  
+  * If using test mode with drupal webform_civicrm (4.x) you need [this patch for webform_civicrm](https://github.com/colemanw/webform_civicrm/pull/266).
+  * If using drupal webform_civicrm (4.x) you need [this patch for CiviCRM core](https://github.com/civicrm/civicrm-core/pull/15340).
+
 * [MJWShared extension](https://civicrm.org/extensions/mjwshared) version 0.3. 
 
 ## Troubleshooting

docs/release/release_notes.md

@@ -4,6 +4,8 @@
 * Remove invalid setting of customer on paymentIntent (no user impact).
 * Small improvements to Stripe Plan code (no user impact).
 
+*Note: You should use [this CiviCRM core patch](https://github.com/civicrm/civicrm-core/pull/15340) if using webform_civicrm 4.28.*
+
 ## Release 6.1.2
 
 * Fix [#89](https://lab.civicrm.org/extensions/stripe/issues/89) - Payment Element is not loading for backend "Credit Card Event Registration".