diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c7a9ac..8c07298 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,46 @@
+### v3.18.0 (2026-02-06)
+* * *
+### New Attributes:
+- [`subscription_id`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/entitlement-override-object#subscription_id) has been added to [`EntitlementOverride`](https://apidocs.chargebee.com/docs/api/entitlement_overrides).
+- [`is_enabled`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/entitlement-override-object#is_enabled) has been added to [`EntitlementOverride`](https://apidocs.chargebee.com/docs/api/entitlement_overrides).
+- [`decommissioned`](https://apidocs.chargebee.com/docs/api/subscriptions/subscription-object#decommissioned) has been added to [`Subscription`](https://apidocs.chargebee.com/docs/api/subscriptions).
+
+
+### New Parameters:
+- [`omnichannel_subscription_item`](https://apidocs.chargebee.com/docs/api/omnichannel_subscriptions/list-omnichannel-subscriptions#omnichannel_subscription_item) has been added as query parameter to [`list_omnichannel_subscriptions`](https://apidocs.chargebee.com/docs/api/omnichannel_subscriptions/list-omnichannel-subscriptions) in [`OmnichannelSubscription`](https://apidocs.chargebee.com/docs/api/omnichannel_subscriptions).
+- [`entitlement_overrides.entity_id`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription#entitlement_overrides_entity_id) has been added as request body parameter to [`upsert_or_remove_entitlement_overrides_for_a_subscription`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription) in [`EntitlementOverride`](https://apidocs.chargebee.com/docs/api/entitlement_overrides).
+- [`entitlement_overrides.entity_type`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription#entitlement_overrides_entity_type) has been added as request body parameter to [`upsert_or_remove_entitlement_overrides_for_a_subscription`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription) in [`EntitlementOverride`](https://apidocs.chargebee.com/docs/api/entitlement_overrides).
+- [`entitlement_overrides.is_enabled`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription#entitlement_overrides_is_enabled) has been added as request body parameter to [`upsert_or_remove_entitlement_overrides_for_a_subscription`](https://apidocs.chargebee.com/docs/api/entitlement_overrides/upsert-or-remove-entitlement-overrides-for-a-subscription) in [`EntitlementOverride`](https://apidocs.chargebee.com/docs/api/entitlement_overrides).
+- [`payment_method_save_policy`](https://apidocs.chargebee.com/docs/api/hosted_pages/collect-now#payment_method_save_policy) has been added as request body parameter to [`collect_now`](https://apidocs.chargebee.com/docs/api/hosted_pages/collect-now) in [`HostedPage`](https://apidocs.chargebee.com/docs/api/hosted_pages).
+- [`decommissioned`](https://apidocs.chargebee.com/docs/api/subscriptions/cancel-subscription-for-items#decommissioned) has been added as request body parameter to [`cancel_subscription_for_items`](https://apidocs.chargebee.com/docs/api/subscriptions/cancel-subscription-for-items) in [`Subscription`](https://apidocs.chargebee.com/docs/api/subscriptions).
+
+
+### Parameter Updates:
+- [`pricing_page`](https://apidocs.chargebee.com/docs/api/pricing_page_sessions/create-pricing-page-for-existing-subscription#pricing_page) has been changed from required to optional in [`create_pricing_page_for_existing_subscription`](https://apidocs.chargebee.com/docs/api/pricing_page_sessions/create-pricing-page-for-existing-subscription) of [`PricingPageSession`](https://apidocs.chargebee.com/docs/api/pricing_page_sessions).
+
+
+### New Events:
+- [`payment_due_reminder`](https://apidocs.chargebee.com/docs/api/events/webhook/payment_due_reminder) has been added.
+
+
+### New Enums:
+- `charge` has been added as a new value enum `EntityType`.
+- `payment_due_reminder` has been added as a new value enum `EventType`.
+- `tempus` has been added as a new value enum `Gateway`.
+- `kakao_pay`, `naver_pay`, `revolut_pay`, and `cash_app_pay` have been added as new values enum `PaymentMethod`.
+- `always`, `ask`, and `never` have been added as new values enum `PaymentMethodSavePolicy`.
+- `kakao_pay`, `naver_pay`, `revolut_pay`, and `cash_app_pay` have been added as new values enum `PaymentMethodType`.
+- `kakao_pay`, `naver_pay`, `revolut_pay`, and `cash_app_pay` have been added as new values enum `Type`.
+- `accepted`, `rejected`, `message_acknowledgement`, `in_process`, `under_query`, `conditionally_accepted`, and `paid` have been added as new values to enum attribute [`einvoice.status`](https://apidocs.chargebee.com/docs/api/credit_notes/credit-note-object#einvoice_status) in [`CreditNote`](https://apidocs.chargebee.com/docs/api/credit_notes).
+- `accepted`, `rejected`, `message_acknowledgement`, `in_process`, `under_query`, `conditionally_accepted`, and `paid` have been added as new values to enum attribute [`status`](https://apidocs.chargebee.com/docs/api/einvoices/einvoice-object#status) in [`Einvoice`](https://apidocs.chargebee.com/docs/api/einvoices).
+- `accepted`, `rejected`, `message_acknowledgement`, `in_process`, `under_query`, `conditionally_accepted`, and `paid` have been added as new values to enum attribute [`einvoice.status`](https://apidocs.chargebee.com/docs/api/invoices/invoice-object#einvoice_status) in [`Invoice`](https://apidocs.chargebee.com/docs/api/invoices).
+- `kakao_pay`, `naver_pay`, `revolut_pay`, `cash_app_pay`, `wechat_pay`, and `alipay` have been added as new values to enum attribute [`payment_method_type`](https://apidocs.chargebee.com/docs/api/payment_intents/payment-intent-object#payment_method_type) in [`PaymentIntent`](https://apidocs.chargebee.com/docs/api/payment_intents).
+- `kakao_pay`, `naver_pay`, `revolut_pay`, `cash_app_pay`, `wechat_pay`, and `alipay` have been added as new values to enum attribute [`active_payment_attempt.payment_method_type`](https://apidocs.chargebee.com/docs/api/payment_intents/payment-intent-object#active_payment_attempt_payment_method_type) in [`PaymentIntent`](https://apidocs.chargebee.com/docs/api/payment_intents).
+- `kakao_pay`, `naver_pay`, `revolut_pay`, `cash_app_pay`, `wechat_pay`, and `alipay` have been added as new values to enum request body parameter `payment_method_type` in [`update_a_payment_intent`](https://apidocs.chargebee.com/docs/api/payment_intents/update-a-payment-intent) of [`PaymentIntent`](https://apidocs.chargebee.com/docs/api/payment_intents).
+- `kakao_pay`, `naver_pay`, `revolut_pay`, `cash_app_pay`, `wechat_pay`, and `alipay` have been added as new values to enum request body parameter `payment_method_type` in [`create_a_payment_intent`](https://apidocs.chargebee.com/docs/api/payment_intents/create-a-payment-intent) of [`PaymentIntent`](https://apidocs.chargebee.com/docs/api/payment_intents).
+
+
+
 ### v3.17.0 (2026-01-16)
 * * * 
 
diff --git a/Makefile b/Makefile
index 3ccade1..951ed00 100644
--- a/Makefile
+++ b/Makefile
@@ -53,7 +53,7 @@ install-dev:
 	@$(PIP) install -e ".[dev]"
 	@$(PIP) install pytest pytest-cov black flake8 pylint mypy
 
-test:
+test: install install-dev 
 	@echo "Running tests..."
 	@$(PYTHON) -m pytest tests/ -v
 
@@ -75,6 +75,7 @@ check: format-check lint test
 
 build: clean
 	@echo "Building distribution packages..."
+	@$(PYTHON) -m pip install -U build || $(PYTHON) -m pip install build
 	@$(PYTHON) -m build
 
 clean:
diff --git a/VERSION b/VERSION
index f85bf6e..c5b45eb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.17.0
\ No newline at end of file
+3.18.0
diff --git a/chargebee/models/__init__.py b/chargebee/models/__init__.py
index 97a9c6a..db88c70 100644
--- a/chargebee/models/__init__.py
+++ b/chargebee/models/__init__.py
@@ -55,6 +55,7 @@
     PauseOption,
     PaymentInitiator,
     PaymentMethod,
+    PaymentMethodSavePolicy,
     PaymentMethodType,
     PaymentVoucherType,
     PeriodUnit,
diff --git a/chargebee/models/credit_note/operations.py b/chargebee/models/credit_note/operations.py
index 2522fbc..7d5a38d 100644
--- a/chargebee/models/credit_note/operations.py
+++ b/chargebee/models/credit_note/operations.py
@@ -99,6 +99,13 @@ class EinvoiceStatus(Enum):
         SUCCESS = "success"
         FAILED = "failed"
         REGISTERED = "registered"
+        ACCEPTED = "accepted"
+        REJECTED = "rejected"
+        MESSAGE_ACKNOWLEDGEMENT = "message_acknowledgement"
+        IN_PROCESS = "in_process"
+        UNDER_QUERY = "under_query"
+        CONDITIONALLY_ACCEPTED = "conditionally_accepted"
+        PAID = "paid"
 
         def __str__(self):
             return self.value
diff --git a/chargebee/models/einvoice/operations.py b/chargebee/models/einvoice/operations.py
index 6500566..758101f 100644
--- a/chargebee/models/einvoice/operations.py
+++ b/chargebee/models/einvoice/operations.py
@@ -15,6 +15,13 @@ class Status(Enum):
         SUCCESS = "success"
         FAILED = "failed"
         REGISTERED = "registered"
+        ACCEPTED = "accepted"
+        REJECTED = "rejected"
+        MESSAGE_ACKNOWLEDGEMENT = "message_acknowledgement"
+        IN_PROCESS = "in_process"
+        UNDER_QUERY = "under_query"
+        CONDITIONALLY_ACCEPTED = "conditionally_accepted"
+        PAID = "paid"
 
         def __str__(self):
             return self.value
diff --git a/chargebee/models/entitlement_override/operations.py b/chargebee/models/entitlement_override/operations.py
index 62e4901..1bd759d 100644
--- a/chargebee/models/entitlement_override/operations.py
+++ b/chargebee/models/entitlement_override/operations.py
@@ -19,9 +19,12 @@ def __str__(self):
 
     class AddEntitlementOverrideForSubscriptionEntitlementOverrideParams(TypedDict):
         feature_id: Required[str]
+        entity_id: NotRequired[str]
+        entity_type: NotRequired[enums.EntityType]
         value: NotRequired[str]
         expires_at: NotRequired[int]
         effective_from: NotRequired[int]
+        is_enabled: NotRequired[bool]
 
     class AddEntitlementOverrideForSubscriptionParams(TypedDict):
         action: NotRequired[enums.Action]
diff --git a/chargebee/models/entitlement_override/responses.py b/chargebee/models/entitlement_override/responses.py
index 8a44a5a..1957ad9 100644
--- a/chargebee/models/entitlement_override/responses.py
+++ b/chargebee/models/entitlement_override/responses.py
@@ -8,6 +8,7 @@
 class EntitlementOverrideResponse(Model):
     raw_data: Dict[Any, Any] = None
     id: str = None
+    subscription_id: str = None
     entity_id: str = None
     entity_type: str = None
     feature_id: str = None
@@ -16,6 +17,7 @@ class EntitlementOverrideResponse(Model):
     name: str = None
     expires_at: int = None
     effective_from: int = None
+    is_enabled: bool = None
     schedule_status: str = None
 
 
diff --git a/chargebee/models/enums.py b/chargebee/models/enums.py
index e91828f..56800af 100644
--- a/chargebee/models/enums.py
+++ b/chargebee/models/enums.py
@@ -392,6 +392,7 @@ class EntityType(Enum):
     USAGE_FILE = "usage_file"
     BUSINESS_RULE = "business_rule"
     RULESET = "ruleset"
+    CHARGE = "charge"
 
     def __str__(self):
         return self.value
@@ -481,6 +482,7 @@ class EventType(Enum):
     PAYMENT_SCHEDULE_SCHEME_DELETED = "payment_schedule_scheme_deleted"
     SUBSCRIPTION_RENEWAL_REMINDER = "subscription_renewal_reminder"
     ADD_USAGES_REMINDER = "add_usages_reminder"
+    PAYMENT_DUE_REMINDER = "payment_due_reminder"
     TRANSACTION_CREATED = "transaction_created"
     TRANSACTION_UPDATED = "transaction_updated"
     TRANSACTION_DELETED = "transaction_deleted"
@@ -755,6 +757,7 @@ class Gateway(Enum):
     DEUTSCHE_BANK = "deutsche_bank"
     EZIDEBIT = "ezidebit"
     TWIKEY = "twikey"
+    TEMPUS = "tempus"
     GOCARDLESS = "gocardless"
     NOT_APPLICABLE = "not_applicable"
 
@@ -909,6 +912,19 @@ class PaymentMethod(Enum):
     PAY_BY_BANK = "pay_by_bank"
     TRUSTLY = "trustly"
     STABLECOIN = "stablecoin"
+    KAKAO_PAY = "kakao_pay"
+    NAVER_PAY = "naver_pay"
+    REVOLUT_PAY = "revolut_pay"
+    CASH_APP_PAY = "cash_app_pay"
+
+    def __str__(self):
+        return self.value
+
+
+class PaymentMethodSavePolicy(Enum):
+    ALWAYS = "always"
+    ASK = "ask"
+    NEVER = "never"
 
     def __str__(self):
         return self.value
@@ -945,6 +961,10 @@ class PaymentMethodType(Enum):
     PAY_BY_BANK = "pay_by_bank"
     TRUSTLY = "trustly"
     STABLECOIN = "stablecoin"
+    KAKAO_PAY = "kakao_pay"
+    NAVER_PAY = "naver_pay"
+    REVOLUT_PAY = "revolut_pay"
+    CASH_APP_PAY = "cash_app_pay"
 
     def __str__(self):
         return self.value
@@ -1198,6 +1218,10 @@ class Type(Enum):
     PAY_BY_BANK = "pay_by_bank"
     TRUSTLY = "trustly"
     STABLECOIN = "stablecoin"
+    KAKAO_PAY = "kakao_pay"
+    NAVER_PAY = "naver_pay"
+    REVOLUT_PAY = "revolut_pay"
+    CASH_APP_PAY = "cash_app_pay"
     FREE_TRIAL = "free_trial"
     PAY_UP_FRONT = "pay_up_front"
     PAY_AS_YOU_GO = "pay_as_you_go"
diff --git a/chargebee/models/hosted_page/operations.py b/chargebee/models/hosted_page/operations.py
index 14e8433..5343590 100644
--- a/chargebee/models/hosted_page/operations.py
+++ b/chargebee/models/hosted_page/operations.py
@@ -704,8 +704,8 @@ class CheckoutOneTimeForItemsParams(TypedDict):
     class CheckoutNewForItemsParams(TypedDict):
         subscription: NotRequired["HostedPage.CheckoutNewForItemsSubscriptionParams"]
         layout: NotRequired[enums.Layout]
-        customer: NotRequired["HostedPage.CheckoutNewForItemsCustomerParams"]
         business_entity_id: NotRequired[str]
+        customer: NotRequired["HostedPage.CheckoutNewForItemsCustomerParams"]
         billing_cycles: NotRequired[int]
         subscription_items: Required[
             List["HostedPage.CheckoutNewForItemsSubscriptionItemParams"]
@@ -824,6 +824,7 @@ class CollectNowParams(TypedDict):
         redirect_url: NotRequired[str]
         card: NotRequired["HostedPage.CollectNowCardParams"]
         currency_code: NotRequired[str]
+        payment_method_save_policy: NotRequired[enums.PaymentMethodSavePolicy]
 
     class AcceptQuoteParams(TypedDict):
         quote: Required["HostedPage.AcceptQuoteQuoteParams"]
diff --git a/chargebee/models/invoice/operations.py b/chargebee/models/invoice/operations.py
index 14197a7..c9b7a91 100644
--- a/chargebee/models/invoice/operations.py
+++ b/chargebee/models/invoice/operations.py
@@ -130,6 +130,13 @@ class EinvoiceStatus(Enum):
         SUCCESS = "success"
         FAILED = "failed"
         REGISTERED = "registered"
+        ACCEPTED = "accepted"
+        REJECTED = "rejected"
+        MESSAGE_ACKNOWLEDGEMENT = "message_acknowledgement"
+        IN_PROCESS = "in_process"
+        UNDER_QUERY = "under_query"
+        CONDITIONALLY_ACCEPTED = "conditionally_accepted"
+        PAID = "paid"
 
         def __str__(self):
             return self.value
diff --git a/chargebee/models/omnichannel_subscription/operations.py b/chargebee/models/omnichannel_subscription/operations.py
index 3e094d2..2d02839 100644
--- a/chargebee/models/omnichannel_subscription/operations.py
+++ b/chargebee/models/omnichannel_subscription/operations.py
@@ -62,9 +62,16 @@ class OmnichannelTransactionType(Enum):
         def __str__(self):
             return self.value
 
+    class ListOmnichannelSubscriptionItemParams(TypedDict):
+        status: NotRequired[Filters.EnumFilter]
+        item_id_at_source: NotRequired[Filters.StringFilter]
+
     class ListParams(TypedDict):
         limit: NotRequired[int]
         offset: NotRequired[str]
+        omnichannel_subscription_item: NotRequired[
+            "OmnichannelSubscription.ListOmnichannelSubscriptionItemParams"
+        ]
         source: NotRequired[Filters.EnumFilter]
         customer_id: NotRequired[Filters.StringFilter]
 
diff --git a/chargebee/models/payment_intent/operations.py b/chargebee/models/payment_intent/operations.py
index be64e18..b9036f7 100644
--- a/chargebee/models/payment_intent/operations.py
+++ b/chargebee/models/payment_intent/operations.py
@@ -46,6 +46,12 @@ class PaymentMethodType(Enum):
         PAY_BY_BANK = "pay_by_bank"
         TRUSTLY = "trustly"
         STABLECOIN = "stablecoin"
+        KAKAO_PAY = "kakao_pay"
+        NAVER_PAY = "naver_pay"
+        REVOLUT_PAY = "revolut_pay"
+        CASH_APP_PAY = "cash_app_pay"
+        WECHAT_PAY = "wechat_pay"
+        ALIPAY = "alipay"
 
         def __str__(self):
             return self.value
diff --git a/chargebee/models/pricing_page_session/operations.py b/chargebee/models/pricing_page_session/operations.py
index 887d53e..2da587f 100644
--- a/chargebee/models/pricing_page_session/operations.py
+++ b/chargebee/models/pricing_page_session/operations.py
@@ -68,7 +68,7 @@ class CreateForNewSubscriptionShippingAddressParams(TypedDict):
         validation_status: NotRequired[enums.ValidationStatus]
 
     class CreateForExistingSubscriptionPricingPageParams(TypedDict):
-        id: Required[str]
+        id: NotRequired[str]
 
     class CreateForExistingSubscriptionSubscriptionParams(TypedDict):
         id: Required[str]
@@ -111,7 +111,7 @@ class CreateForNewSubscriptionParams(TypedDict):
 
     class CreateForExistingSubscriptionParams(TypedDict):
         redirect_url: NotRequired[str]
-        pricing_page: Required[
+        pricing_page: NotRequired[
             "PricingPageSession.CreateForExistingSubscriptionPricingPageParams"
         ]
         subscription: Required[
diff --git a/chargebee/models/subscription/operations.py b/chargebee/models/subscription/operations.py
index 883e5b8..6d169c0 100644
--- a/chargebee/models/subscription/operations.py
+++ b/chargebee/models/subscription/operations.py
@@ -1729,6 +1729,7 @@ class CancelForItemsParams(TypedDict):
             List["Subscription.CancelForItemsSubscriptionItemParams"]
         ]
         cancel_reason_code: NotRequired[str]
+        decommissioned: NotRequired[bool]
 
     class ResumeParams(TypedDict):
         resume_option: NotRequired[enums.ResumeOption]
diff --git a/chargebee/models/subscription/responses.py b/chargebee/models/subscription/responses.py
index 0627665..b7bf861 100644
--- a/chargebee/models/subscription/responses.py
+++ b/chargebee/models/subscription/responses.py
@@ -282,6 +282,7 @@ class SubscriptionResponse(Model):
     auto_close_invoices: bool = None
     discounts: List[DiscountResponse] = None
     business_entity_id: str = None
+    decommissioned: bool = None
 
 
 @dataclass
diff --git a/chargebee/version.py b/chargebee/version.py
index 8bc0d97..ed2ab66 100644
--- a/chargebee/version.py
+++ b/chargebee/version.py
@@ -1 +1 @@
-VERSION = "3.17.0"
+VERSION = "3.18.0"