diff --git a/openapi/api.yaml b/openapi/api.yaml
index 6e8d8d1..ad7a4e4 100644
--- a/openapi/api.yaml
+++ b/openapi/api.yaml
@@ -8617,8 +8617,6 @@ paths:
       summary: Apply available credit to a pending or past due charge invoice
       description: Apply credit payment to the outstanding balance on an existing
         charge invoice from an account’s available balance from existing credit invoices.
-        Credit that was refunded from the invoice cannot be applied back to the invoice
-        as payment.
       parameters:
       - "$ref": "#/components/parameters/site_id"
       - "$ref": "#/components/parameters/invoice_id"
@@ -18389,6 +18387,10 @@ components:
           deprecated: true
         card_type:
           "$ref": "#/components/schemas/CardTypeEnum"
+        card_network_preference:
+          description: Represents the card network preference associated with the
+            billing info for dual badged cards. Must be a supported card network.
+          "$ref": "#/components/schemas/CardNetworkEnum"
     BillingInfoVerify:
       type: object
       properties:
@@ -24173,6 +24175,12 @@ components:
           title: Trial ends at
           description: When the external subscription trial period ends in the external
             platform.
+        test:
+          type: boolean
+          title: Test
+          description: An indication of whether or not the external subscription was
+            purchased in a sandbox environment.
+          default: false
         created_at:
           type: string
           format: date-time
@@ -24427,6 +24435,10 @@ components:
                 Reference value used when the external token was created. For Braintree
                 the PayPal PayerID is populated in the response.
               maxLength: 264
+        card_network_preference:
+          description: Represents the card network preference associated with the
+            billing info for dual badged cards. Must be a supported card network.
+          "$ref": "#/components/schemas/CardNetworkEnum"
         billing_agreement_id:
           type: string
           description: Billing Agreement identifier. Only present for Amazon or Paypal
@@ -25469,6 +25481,14 @@ components:
       - Unknown
       - Visa
       - Tarjeta Naranja
+    CardNetworkEnum:
+      type: string
+      enum:
+      - Bancontact
+      - CartesBancaires
+      - Dankort
+      - MasterCard
+      - Visa
     AccountTypeEnum:
       type: string
       enum:
diff --git a/src/main/java/com/recurly/v3/Constants.java b/src/main/java/com/recurly/v3/Constants.java
index 73c2861..bff2993 100644
--- a/src/main/java/com/recurly/v3/Constants.java
+++ b/src/main/java/com/recurly/v3/Constants.java
@@ -1457,6 +1457,26 @@ public enum CardType {
     
     };
   
+    public enum CardNetwork {
+      UNDEFINED,
+    
+      @SerializedName("Bancontact")
+      BANCONTACT,
+    
+      @SerializedName("CartesBancaires")
+      CARTESBANCAIRES,
+    
+      @SerializedName("Dankort")
+      DANKORT,
+    
+      @SerializedName("MasterCard")
+      MASTERCARD,
+    
+      @SerializedName("Visa")
+      VISA,
+    
+    };
+  
     public enum AccountType {
       UNDEFINED,
     
diff --git a/src/main/java/com/recurly/v3/requests/BillingInfoCreate.java b/src/main/java/com/recurly/v3/requests/BillingInfoCreate.java
index 2e5712c..32c2176 100644
--- a/src/main/java/com/recurly/v3/requests/BillingInfoCreate.java
+++ b/src/main/java/com/recurly/v3/requests/BillingInfoCreate.java
@@ -43,6 +43,14 @@ public class BillingInfoCreate extends Request {
   @Expose
   private Boolean backupPaymentMethod;
 
+  /**
+   * Represents the card network preference associated with the billing info for dual badged cards.
+   * Must be a supported card network.
+   */
+  @SerializedName("card_network_preference")
+  @Expose
+  private Constants.CardNetwork cardNetworkPreference;
+
   @SerializedName("card_type")
   @Expose
   private Constants.CardType cardType;
@@ -295,6 +303,22 @@ public void setBackupPaymentMethod(final Boolean backupPaymentMethod) {
     this.backupPaymentMethod = backupPaymentMethod;
   }
 
+  /**
+   * Represents the card network preference associated with the billing info for dual badged cards.
+   * Must be a supported card network.
+   */
+  public Constants.CardNetwork getCardNetworkPreference() {
+    return this.cardNetworkPreference;
+  }
+
+  /**
+   * @param cardNetworkPreference Represents the card network preference associated with the billing
+   *     info for dual badged cards. Must be a supported card network.
+   */
+  public void setCardNetworkPreference(final Constants.CardNetwork cardNetworkPreference) {
+    this.cardNetworkPreference = cardNetworkPreference;
+  }
+
   public Constants.CardType getCardType() {
     return this.cardType;
   }
diff --git a/src/main/java/com/recurly/v3/resources/ExternalSubscription.java b/src/main/java/com/recurly/v3/resources/ExternalSubscription.java
index 859522e..f8d1c45 100644
--- a/src/main/java/com/recurly/v3/resources/ExternalSubscription.java
+++ b/src/main/java/com/recurly/v3/resources/ExternalSubscription.java
@@ -95,6 +95,14 @@ public class ExternalSubscription extends Resource {
   @Expose
   private String state;
 
+  /**
+   * An indication of whether or not the external subscription was purchased in a sandbox
+   * environment.
+   */
+  @SerializedName("test")
+  @Expose
+  private Boolean test;
+
   /** When the external subscription trial period ends in the external platform. */
   @SerializedName("trial_ends_at")
   @Expose
@@ -284,6 +292,22 @@ public void setState(final String state) {
     this.state = state;
   }
 
+  /**
+   * An indication of whether or not the external subscription was purchased in a sandbox
+   * environment.
+   */
+  public Boolean getTest() {
+    return this.test;
+  }
+
+  /**
+   * @param test An indication of whether or not the external subscription was purchased in a
+   *     sandbox environment.
+   */
+  public void setTest(final Boolean test) {
+    this.test = test;
+  }
+
   /** When the external subscription trial period ends in the external platform. */
   public DateTime getTrialEndsAt() {
     return this.trialEndsAt;
diff --git a/src/main/java/com/recurly/v3/resources/PaymentMethod.java b/src/main/java/com/recurly/v3/resources/PaymentMethod.java
index 7ace094..6a6bfe3 100644
--- a/src/main/java/com/recurly/v3/resources/PaymentMethod.java
+++ b/src/main/java/com/recurly/v3/resources/PaymentMethod.java
@@ -22,6 +22,14 @@ public class PaymentMethod extends Resource {
   @Expose
   private String billingAgreementId;
 
+  /**
+   * Represents the card network preference associated with the billing info for dual badged cards.
+   * Must be a supported card network.
+   */
+  @SerializedName("card_network_preference")
+  @Expose
+  private Constants.CardNetwork cardNetworkPreference;
+
   /** Visa, MasterCard, American Express, Discover, JCB, etc. */
   @SerializedName("card_type")
   @Expose
@@ -123,6 +131,22 @@ public void setBillingAgreementId(final String billingAgreementId) {
     this.billingAgreementId = billingAgreementId;
   }
 
+  /**
+   * Represents the card network preference associated with the billing info for dual badged cards.
+   * Must be a supported card network.
+   */
+  public Constants.CardNetwork getCardNetworkPreference() {
+    return this.cardNetworkPreference;
+  }
+
+  /**
+   * @param cardNetworkPreference Represents the card network preference associated with the billing
+   *     info for dual badged cards. Must be a supported card network.
+   */
+  public void setCardNetworkPreference(final Constants.CardNetwork cardNetworkPreference) {
+    this.cardNetworkPreference = cardNetworkPreference;
+  }
+
   /** Visa, MasterCard, American Express, Discover, JCB, etc. */
   public Constants.CardType getCardType() {
     return this.cardType;