Update release notes

docs/releasenotes.md

@@ -9,6 +9,11 @@ Releases use the following numbering system:
 
 * **[BC]**: Items marked with [BC] indicate a breaking change that will require updates to your code if you are using that code in your extension.
 
+## Release 6.6.1 (not yet released)
+
+* Fix PHP notice when there are no Stripe customers.
+* Fix [#313](https://lab.civicrm.org/extensions/stripe/-/issues/315) Stripe and CiviDiscount, Stripe payment is cancelled if the Discount Code is NOT first applied on the Event Registration form.
+
 ## Release 6.6
 **Requires mjwshared (Payment Shared) 1.0**
 

info.xml

@@ -15,7 +15,7 @@
     <author>Matthew Wire (MJW Consulting)</author>
     <email>mjw@mjwconsult.co.uk</email>
   </maintainer>
-  <releaseDate>2021-06-01</releaseDate>
+  <releaseDate>2021-06-13</releaseDate>
   <version>6.6.1-dev</version>
   <develStage>beta</develStage>
   <compatibility>