diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index e394bcf08..fe802d3a4 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v203
\ No newline at end of file
+v204
\ No newline at end of file
diff --git a/lib/Refund.php b/lib/Refund.php
index 0ddabfc4e..fd7eef280 100644
--- a/lib/Refund.php
+++ b/lib/Refund.php
@@ -9,6 +9,11 @@
  * been created but not yet refunded. Funds will be refunded to the credit or debit
  * card that was originally charged.
  *
+ * Stripe Tax users with recurring payments and invoices can create <a
+ * href="https://stripe.com/docs/api/credit_notes">Credit Notes</a>, which reduce
+ * overall tax liability because tax is correctly recalculated and apportioned to
+ * the related invoice.
+ *
  * Related guide: <a href="https://stripe.com/docs/refunds">Refunds</a>.
  *
  * @property string $id Unique identifier for the object.
diff --git a/lib/Service/Issuing/AuthorizationService.php b/lib/Service/Issuing/AuthorizationService.php
index 6517688f6..d36f48ed9 100644
--- a/lib/Service/Issuing/AuthorizationService.php
+++ b/lib/Service/Issuing/AuthorizationService.php
@@ -27,7 +27,9 @@ public function all($params = null, $opts = null)
      * Approves a pending Issuing <code>Authorization</code> object. This request
      * should be made within the timeout window of the <a
      * href="/docs/issuing/controls/real-time-authorizations">real-time
-     * authorization</a> flow.
+     * authorization</a> flow.  You can also respond directly to the webhook request to
+     * approve an authorization (preferred). More details can be found <a
+     * href="https://site-admin.stripe.com/docs/issuing/controls/real-time-authorizations#authorization-handling">here</a>.
      *
      * @param string $id
      * @param null|array $params
@@ -46,7 +48,9 @@ public function approve($id, $params = null, $opts = null)
      * Declines a pending Issuing <code>Authorization</code> object. This request
      * should be made within the timeout window of the <a
      * href="/docs/issuing/controls/real-time-authorizations">real time
-     * authorization</a> flow.
+     * authorization</a> flow. You can also respond directly to the webhook request to
+     * decline an authorization (preferred). More details can be found <a
+     * href="https://site-admin.stripe.com/docs/issuing/controls/real-time-authorizations#authorization-handling">here</a>.
      *
      * @param string $id
      * @param null|array $params
diff --git a/lib/Subscription.php b/lib/Subscription.php
index 6de61c0b5..0c7a8209b 100644
--- a/lib/Subscription.php
+++ b/lib/Subscription.php
@@ -39,6 +39,7 @@
  * @property bool $livemode Has the value <code>true</code> if the object exists in live mode or the value <code>false</code> if the object exists in test mode.
  * @property \Stripe\StripeObject $metadata Set of <a href="https://stripe.com/docs/api/metadata">key-value pairs</a> that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
  * @property null|int $next_pending_invoice_item_invoice Specifies the approximate timestamp on which any pending invoice items will be billed according to the schedule provided at <code>pending_invoice_item_interval</code>.
+ * @property null|string|\Stripe\Account $on_behalf_of The account (if any) the charge was made on behalf of for charges associated with this subscription. See the Connect documentation for details.
  * @property null|\Stripe\StripeObject $pause_collection If specified, payment collection for this subscription will be paused.
  * @property null|\Stripe\StripeObject $payment_settings Payment settings passed on to invoices created by the subscription.
  * @property null|\Stripe\StripeObject $pending_invoice_item_interval Specifies an interval for how often to bill for any pending invoice items. It is analogous to calling <a href="https://stripe.com/docs/api#create_invoice">Create an invoice</a> for the given subscription at the specified interval.