diff --git a/lib/Checkout/Session.php b/lib/Checkout/Session.php
index c3fbaae37..aa8b34011 100644
--- a/lib/Checkout/Session.php
+++ b/lib/Checkout/Session.php
@@ -64,7 +64,7 @@
  * @property string $success_url The URL the customer will be directed to after the payment or subscription creation is successful.
  * @property \Stripe\StripeObject $tax_id_collection
  * @property null|\Stripe\StripeObject $total_details Tax and discount details for the computed total amount.
- * @property null|string $url The URL to the Checkout Session.
+ * @property null|string $url The URL to the Checkout Session. Redirect customers to this URL to take them to Checkout. If you’re using <a href="https://stripe.com/docs/payments/checkout/custom-domains">Custom Domains</a>, the URL will use your subdomain. Otherwise, it’ll use <code>checkout.stripe.com.</code>
  */
 class Session extends \Stripe\ApiResource
 {
diff --git a/lib/Event.php b/lib/Event.php
index 469b75222..96674da4c 100644
--- a/lib/Event.php
+++ b/lib/Event.php
@@ -75,6 +75,7 @@ class Event extends ApiResource
     const BILLING_PORTAL_CONFIGURATION_CREATED = 'billing_portal.configuration.created';
     const BILLING_PORTAL_CONFIGURATION_UPDATED = 'billing_portal.configuration.updated';
     const CAPABILITY_UPDATED = 'capability.updated';
+    const CASH_BALANCE_FUNDS_AVAILABLE = 'cash_balance.funds_available';
     const CHARGE_CAPTURED = 'charge.captured';
     const CHARGE_EXPIRED = 'charge.expired';
     const CHARGE_FAILED = 'charge.failed';
diff --git a/lib/PaymentIntent.php b/lib/PaymentIntent.php
index bf46ad33a..c184d2a05 100644
--- a/lib/PaymentIntent.php
+++ b/lib/PaymentIntent.php
@@ -75,6 +75,23 @@ class PaymentIntent extends ApiResource
     const STATUS_REQUIRES_PAYMENT_METHOD = 'requires_payment_method';
     const STATUS_SUCCEEDED = 'succeeded';
 
+    /**
+     * @param null|array $params
+     * @param null|array|string $opts
+     *
+     * @throws \Stripe\Exception\ApiErrorException if the request fails
+     *
+     * @return \Stripe\PaymentIntent the applied payment intent
+     */
+    public function applyCustomerBalance($params = null, $opts = null)
+    {
+        $url = $this->instanceUrl() . '/apply_customer_balance';
+        list($response, $opts) = $this->_request('post', $url, $params, $opts);
+        $this->refreshFrom($response, $opts);
+
+        return $this;
+    }
+
     /**
      * @param null|array $params
      * @param null|array|string $opts
diff --git a/lib/Service/PaymentIntentService.php b/lib/Service/PaymentIntentService.php
index f69eaab0a..801654657 100644
--- a/lib/Service/PaymentIntentService.php
+++ b/lib/Service/PaymentIntentService.php
@@ -21,6 +21,26 @@ public function all($params = null, $opts = null)
         return $this->requestCollection('get', '/v1/payment_intents', $params, $opts);
     }
 
+    /**
+     * Manually reconcile the remaining amount for a customer_balance PaymentIntent.
+     *
+     * This can be used when the cash balance for <a
+     * href="docs/payments/customer-balance/reconciliation#cash-manual-reconciliation">a
+     * customer in manual reconciliation mode</a> received funds.
+     *
+     * @param string $id
+     * @param null|array $params
+     * @param null|array|\Stripe\Util\RequestOptions $opts
+     *
+     * @throws \Stripe\Exception\ApiErrorException if the request fails
+     *
+     * @return \Stripe\PaymentIntent
+     */
+    public function applyCustomerBalance($id, $params = null, $opts = null)
+    {
+        return $this->request('post', $this->buildPath('/v1/payment_intents/%s/apply_customer_balance', $id), $params, $opts);
+    }
+
     /**
      * A PaymentIntent object can be canceled when it is in one of these statuses:
      * <code>requires_payment_method</code>, <code>requires_capture</code>,
diff --git a/lib/Service/Terminal/ReaderService.php b/lib/Service/Terminal/ReaderService.php
index 2a97fa36a..ae8555950 100644
--- a/lib/Service/Terminal/ReaderService.php
+++ b/lib/Service/Terminal/ReaderService.php
@@ -117,7 +117,7 @@ public function retrieve($id, $params = null, $opts = null)
     }
 
     /**
-     * Sets reader display.
+     * Sets reader display to show cart details.
      *
      * @param string $id
      * @param null|array $params