diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90c7d8f0..22b46d38 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,25 @@
+### v3.40.0 (2025-12-30)
+* * * 
+
+### New Attributes: 
+* retry_engine has been added to Invoice#DunningAttempt.
+
+### New Endpoint: 
+* move action has been added to ItemPrice.
+
+### New Parameters: 
+* exclude_tax_type has been added to Estimate#RenewalEstimateInputParam.
+* variant_id has been added to ItemPrice#MoveInputParam.
+* custom has been added to PricingPageSession#CreateForNewSubscriptionInputParam.
+* custom has been added to PricingPageSession#CreateForExistingSubscriptionInputParam.
+
+### New Enums: 
+* ELECTRONIC_PAYMENT_STANDARD has been added to PaymentMethodTypeEnum.
+* KBC_PAYMENT_BUTTON has been added to PaymentMethodTypeEnum.
+* PAY_BY_BANK has been added to PaymentMethodTypeEnum.
+* TRUSTLY has been added to PaymentMethodTypeEnum.
+* STABLECOIN has been added to PaymentMethodTypeEnum.
+
 ### v3.39.0 (2025-11-26)
 * * * 
 
diff --git a/pom.xml b/pom.xml
index 80c51303..29860c7e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>com.chargebee</groupId>
     <artifactId>chargebee-java</artifactId>
-    <version>3.39.0</version>
+    <version>3.40.0</version>
 
 
     <packaging>jar</packaging>
diff --git a/src/main/java/com/chargebee/Environment.java b/src/main/java/com/chargebee/Environment.java
index 65357c65..6fef38aa 100644
--- a/src/main/java/com/chargebee/Environment.java
+++ b/src/main/java/com/chargebee/Environment.java
@@ -38,7 +38,7 @@ public class Environment {
 
     public static final String API_VERSION = "v2";
     
-    public static final String LIBRARY_VERSION = "3.39.0";
+    public static final String LIBRARY_VERSION = "3.40.0";
 
     private final String apiBaseUrl;
 
diff --git a/src/main/java/com/chargebee/models/Customer.java b/src/main/java/com/chargebee/models/Customer.java
index d6eba422..8974600f 100644
--- a/src/main/java/com/chargebee/models/Customer.java
+++ b/src/main/java/com/chargebee/models/Customer.java
@@ -209,7 +209,7 @@ public Boolean sendBillingEmail() {
 
     public static class PaymentMethod extends Resource<PaymentMethod> {
         public enum Type {
-             CARD,PAYPAL_EXPRESS_CHECKOUT,AMAZON_PAYMENTS,DIRECT_DEBIT,GENERIC,ALIPAY,UNIONPAY,APPLE_PAY,WECHAT_PAY,IDEAL,GOOGLE_PAY,SOFORT,BANCONTACT,GIROPAY,DOTPAY,UPI,NETBANKING_EMANDATES,VENMO,PAY_TO,FASTER_PAYMENTS,SEPA_INSTANT_TRANSFER,AUTOMATED_BANK_TRANSFER,KLARNA_PAY_NOW,ONLINE_BANKING_POLAND,PAYCONIQ_BY_BANCONTACT,
+             CARD,PAYPAL_EXPRESS_CHECKOUT,AMAZON_PAYMENTS,DIRECT_DEBIT,GENERIC,ALIPAY,UNIONPAY,APPLE_PAY,WECHAT_PAY,IDEAL,GOOGLE_PAY,SOFORT,BANCONTACT,GIROPAY,DOTPAY,UPI,NETBANKING_EMANDATES,VENMO,PAY_TO,FASTER_PAYMENTS,SEPA_INSTANT_TRANSFER,AUTOMATED_BANK_TRANSFER,KLARNA_PAY_NOW,ONLINE_BANKING_POLAND,PAYCONIQ_BY_BANCONTACT,ELECTRONIC_PAYMENT_STANDARD,KBC_PAYMENT_BUTTON,PAY_BY_BANK,TRUSTLY,STABLECOIN,
             _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
             java-client version incompatibility. We suggest you to upgrade to the latest version */ 
         }
diff --git a/src/main/java/com/chargebee/models/Estimate.java b/src/main/java/com/chargebee/models/Estimate.java
index 14c8490a..bfe53a08 100644
--- a/src/main/java/com/chargebee/models/Estimate.java
+++ b/src/main/java/com/chargebee/models/Estimate.java
@@ -2335,6 +2335,12 @@ public RenewalEstimateRequest ignoreScheduledChanges(Boolean ignoreScheduledChan
         }
 
 
+        public RenewalEstimateRequest excludeTaxType(com.chargebee.models.enums.ExcludeTaxType excludeTaxType) {
+            params.addOpt("exclude_tax_type", excludeTaxType);
+            return this;
+        }
+
+
         @Override
         public Params params() {
             return params;
diff --git a/src/main/java/com/chargebee/models/Invoice.java b/src/main/java/com/chargebee/models/Invoice.java
index f683b00b..1c91e69f 100644
--- a/src/main/java/com/chargebee/models/Invoice.java
+++ b/src/main/java/com/chargebee/models/Invoice.java
@@ -574,6 +574,10 @@ public Long txnAmount() {
             return optLong("txn_amount");
         }
 
+        public RetryEngine retryEngine() {
+            return optEnum("retry_engine", RetryEngine.class);
+        }
+
     }
 
     public static class AppliedCredit extends Resource<AppliedCredit> {
diff --git a/src/main/java/com/chargebee/models/ItemPrice.java b/src/main/java/com/chargebee/models/ItemPrice.java
index 3ceb4f10..5cb56a6e 100644
--- a/src/main/java/com/chargebee/models/ItemPrice.java
+++ b/src/main/java/com/chargebee/models/ItemPrice.java
@@ -1175,6 +1175,12 @@ public MoveItemPriceRequest destinationItemId(String destinationItemId) {
         }
 
 
+        public MoveItemPriceRequest variantId(String variantId) {
+            params.addOpt("variant_id", variantId);
+            return this;
+        }
+
+
         @Override
         public Params params() {
             return params;
diff --git a/src/main/java/com/chargebee/models/PaymentIntent.java b/src/main/java/com/chargebee/models/PaymentIntent.java
index f9da5cae..979e3d7e 100644
--- a/src/main/java/com/chargebee/models/PaymentIntent.java
+++ b/src/main/java/com/chargebee/models/PaymentIntent.java
@@ -45,6 +45,11 @@ public enum PaymentMethodType {
         KLARNA_PAY_NOW,
         ONLINE_BANKING_POLAND,
         PAYCONIQ_BY_BANCONTACT,
+        ELECTRONIC_PAYMENT_STANDARD,
+        KBC_PAYMENT_BUTTON,
+        PAY_BY_BANK,
+        TRUSTLY,
+        STABLECOIN,
         _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
         java-client version incompatibility. We suggest you to upgrade to the latest version */
     }
diff --git a/src/main/java/com/chargebee/models/PricingPageSession.java b/src/main/java/com/chargebee/models/PricingPageSession.java
index 4194ecc0..705ec859 100644
--- a/src/main/java/com/chargebee/models/PricingPageSession.java
+++ b/src/main/java/com/chargebee/models/PricingPageSession.java
@@ -84,6 +84,12 @@ public CreateForNewSubscriptionRequest autoSelectLocalCurrency(Boolean autoSelec
         }
 
 
+        public CreateForNewSubscriptionRequest custom(JSONObject custom) {
+            params.addOpt("custom", custom);
+            return this;
+        }
+
+
         public CreateForNewSubscriptionRequest pricingPageId(String pricingPageId) {
             params.add("pricing_page[id]", pricingPageId);
             return this;
@@ -327,6 +333,12 @@ public CreateForExistingSubscriptionRequest redirectUrl(String redirectUrl) {
         }
 
 
+        public CreateForExistingSubscriptionRequest custom(JSONObject custom) {
+            params.addOpt("custom", custom);
+            return this;
+        }
+
+
         public CreateForExistingSubscriptionRequest pricingPageId(String pricingPageId) {
             params.add("pricing_page[id]", pricingPageId);
             return this;
diff --git a/src/main/java/com/chargebee/models/enums/ExcludeTaxType.java b/src/main/java/com/chargebee/models/enums/ExcludeTaxType.java
new file mode 100644
index 00000000..4f23ed35
--- /dev/null
+++ b/src/main/java/com/chargebee/models/enums/ExcludeTaxType.java
@@ -0,0 +1,8 @@
+package com.chargebee.models.enums;
+
+public enum ExcludeTaxType {
+    EXCLUSIVE,
+    NONE,
+    _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
+    java-client version incompatibility. We suggest you to upgrade to the latest version */
+}
\ No newline at end of file
diff --git a/src/main/java/com/chargebee/models/enums/PaymentMethod.java b/src/main/java/com/chargebee/models/enums/PaymentMethod.java
index 08e48a67..4d4ff362 100644
--- a/src/main/java/com/chargebee/models/enums/PaymentMethod.java
+++ b/src/main/java/com/chargebee/models/enums/PaymentMethod.java
@@ -34,6 +34,11 @@ public enum PaymentMethod {
     KLARNA_PAY_NOW,
     ONLINE_BANKING_POLAND,
     PAYCONIQ_BY_BANCONTACT,
+    ELECTRONIC_PAYMENT_STANDARD,
+    KBC_PAYMENT_BUTTON,
+    PAY_BY_BANK,
+    TRUSTLY,
+    STABLECOIN,
     _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
     java-client version incompatibility. We suggest you to upgrade to the latest version */
 }
\ No newline at end of file
diff --git a/src/main/java/com/chargebee/models/enums/PaymentMethodType.java b/src/main/java/com/chargebee/models/enums/PaymentMethodType.java
index da6f67ae..778ba81c 100644
--- a/src/main/java/com/chargebee/models/enums/PaymentMethodType.java
+++ b/src/main/java/com/chargebee/models/enums/PaymentMethodType.java
@@ -26,6 +26,11 @@ public enum PaymentMethodType {
     KLARNA_PAY_NOW,
     ONLINE_BANKING_POLAND,
     PAYCONIQ_BY_BANCONTACT,
+    ELECTRONIC_PAYMENT_STANDARD,
+    KBC_PAYMENT_BUTTON,
+    PAY_BY_BANK,
+    TRUSTLY,
+    STABLECOIN,
     _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
     java-client version incompatibility. We suggest you to upgrade to the latest version */
 }
\ No newline at end of file
diff --git a/src/main/java/com/chargebee/models/enums/RetryEngine.java b/src/main/java/com/chargebee/models/enums/RetryEngine.java
new file mode 100644
index 00000000..2afc937a
--- /dev/null
+++ b/src/main/java/com/chargebee/models/enums/RetryEngine.java
@@ -0,0 +1,9 @@
+package com.chargebee.models.enums;
+
+public enum RetryEngine {
+    CHARGEBEE,
+    FLEXPAY,
+    SUCCESSPLUS,
+    _UNKNOWN; /*Indicates unexpected value for this enum. You can get this when there is a
+    java-client version incompatibility. We suggest you to upgrade to the latest version */
+}
\ No newline at end of file
diff --git a/src/main/java/com/chargebee/models/enums/Type.java b/src/main/java/com/chargebee/models/enums/Type.java
index a6a6318d..e9ed8598 100644
--- a/src/main/java/com/chargebee/models/enums/Type.java
+++ b/src/main/java/com/chargebee/models/enums/Type.java
@@ -26,6 +26,11 @@ public enum Type {
     KLARNA_PAY_NOW,
     ONLINE_BANKING_POLAND,
     PAYCONIQ_BY_BANCONTACT,
+    ELECTRONIC_PAYMENT_STANDARD,
+    KBC_PAYMENT_BUTTON,
+    PAY_BY_BANK,
+    TRUSTLY,
+    STABLECOIN,
     FREE_TRIAL,
     PAY_UP_FRONT,
     PAY_AS_YOU_GO,