diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75dac43..f1fba8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,92 @@
+### v3.21.0 (2026-05-04)
+* * *
+### New Resources:
+- [`QuoteEntitlement`](https://apidocs.chargebee.com/docs/api/quote_entitlements) has been added.
+
+
+### New Actions:
+- [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`retrieve_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/retrieve-an-alert) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`update_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`delete_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/delete-an-alert) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) has been added to [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`list_alert_statuses_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription) has been added to [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`list_alert_statuses_for_an_alert`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert) has been added to [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+
+
+### New Attributes:
+- [`alarm_status`](https://apidocs.chargebee.com/docs/api/alert_statuses/alert-status-object#alarm_status) has been added to [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+
+
+### New Parameters:
+- [`limit`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription#limit) has been added as query parameter to [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`offset`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription#offset) has been added as query parameter to [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`status`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription#status) has been added as query parameter to [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`type`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription#type) has been added as query parameter to [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`limit`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#limit) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`offset`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#offset) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`id`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#id) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`type`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#type) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`subscription_id`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#subscription_id) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`status`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts#status) has been added as query parameter to [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`limit`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription#limit) has been added as query parameter to [`list_alert_statuses_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`offset`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription#offset) has been added as query parameter to [`list_alert_statuses_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`alarm_status`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription#alarm_status) has been added as query parameter to [`list_alert_statuses_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`alert_id`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription#alert_id) has been added as query parameter to [`list_alert_statuses_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-a-subscription) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`limit`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert#limit) has been added as query parameter to [`list_alert_statuses_for_an_alert`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`offset`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert#offset) has been added as query parameter to [`list_alert_statuses_for_an_alert`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`alarm_status`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert#alarm_status) has been added as query parameter to [`list_alert_statuses_for_an_alert`](https://apidocs.chargebee.com/docs/api/alert_statuses/list-alert-statuses-for-an-alert) in [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+- [`exclude`](https://apidocs.chargebee.com/docs/api/invoices/list-invoices#exclude) has been added as query parameter to [`list_invoices`](https://apidocs.chargebee.com/docs/api/invoices/list-invoices) in [`Invoice`](https://apidocs.chargebee.com/docs/api/invoices).
+- [`threshold`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert#threshold) has been added as request body parameter to [`update_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`status`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert#status) has been added as request body parameter to [`update_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`threshold`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#threshold) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`filter_conditions`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#filter_conditions) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`type`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#type) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`name`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#name) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`description`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#description) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`metered_feature_id`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#metered_feature_id) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`subscription_id`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#subscription_id) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`meta`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert#meta) has been added as request body parameter to [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) in [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- [`defer_payment_method_type`](https://apidocs.chargebee.com/docs/api/payment_intents/create-a-payment-intent#defer_payment_method_type) has been added as request body parameter to [`create_a_payment_intent`](https://apidocs.chargebee.com/docs/api/payment_intents/create-a-payment-intent) in [`PaymentIntent`](https://apidocs.chargebee.com/docs/api/payment_intents).
+- [`net_term_days`](https://apidocs.chargebee.com/docs/api/quotes/edit-quote-for-charge-items-and-charges#net_term_days) has been added as request body parameter to [`edit_quote_for_charge_items_and_charges`](https://apidocs.chargebee.com/docs/api/quotes/edit-quote-for-charge-items-and-charges) in [`Quote`](https://apidocs.chargebee.com/docs/api/quotes).
+- [`net_term_days`](https://apidocs.chargebee.com/docs/api/quotes/create-a-quote-for-charge-and-charge-items#net_term_days) has been added as request body parameter to [`create_a_quote_for_charge_and_charge_items`](https://apidocs.chargebee.com/docs/api/quotes/create-a-quote-for-charge-and-charge-items) in [`Quote`](https://apidocs.chargebee.com/docs/api/quotes).
+
+
+### Deleted Attributes:
+- `alarm_triggered_at` has been removed from [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `scope` has been removed from [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `alert_status` has been removed from [`AlertStatus`](https://apidocs.chargebee.com/docs/api/alert_statuses).
+
+
+### New Enums:
+- `within_limit` and `in_alarm` have been added as new values enum `AlarmStatus`.
+- `moyasar` and `payway` have been added as new values enum `Gateway`.
+- `absolute` and `percentage` have been added as new values enum `Mode`.
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` have been added as new values enum `PaymentMethod`.
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` have been added as new values enum `PaymentMethodType`.
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` have been added as new values enum `Type`.
+- `mada` has been added as a new value to enum attribute [`card_type`](https://apidocs.chargebee.com/docs/api/cards/card-object#card_type) in [`Card`](https://apidocs.chargebee.com/docs/api/cards).
+- `rate_limited` has been added as a new value to enum attribute [`webhook_status`](https://apidocs.chargebee.com/docs/api/events/event-object#webhook_status) in [`Event`](https://apidocs.chargebee.com/docs/api/events).
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` 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).
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` 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).
+- `mada` has been added as a new value to enum attribute [`card.brand`](https://apidocs.chargebee.com/docs/api/payment_sources/payment-source-object#card_brand) in [`PaymentSource`](https://apidocs.chargebee.com/docs/api/payment_sources).
+- `plan_price`, `addon_price`, `charge_price`, and `charge` have been added as new values to enum attribute [`entity_type`](https://apidocs.chargebee.com/docs/api/quote_entitlements/quote-entitlement-object#entity_type) in [`QuoteEntitlement`](https://apidocs.chargebee.com/docs/api/quote_entitlements).
+- `disabled` and `enabled` have been added as new values to enum query parameter `status.is` in [`list_applicable_alerts_for_a_subscription`](https://apidocs.chargebee.com/docs/api/alerts/list-applicable-alerts-for-a-subscription) of [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `enabled` and `disabled` have been added as new values to enum request body parameter `status` in [`update_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/update-an-alert) of [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `disabled` and `enabled` have been added as new values to enum query parameter `status.is` in [`list_alerts`](https://apidocs.chargebee.com/docs/api/alerts/list-alerts) of [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `plan_price_id` has been added as a new value to enum request body parameter `filter_conditions.field` in [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) of [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `not_equals` and `equals` have been added as new values to enum request body parameter `filter_conditions.operator` in [`create_an_alert`](https://apidocs.chargebee.com/docs/api/alerts/create-an-alert) of [`Alert`](https://apidocs.chargebee.com/docs/api/alerts).
+- `rate_limited` has been added as a new value to enum query parameter `webhook_status.is` in [`list_events`](https://apidocs.chargebee.com/docs/api/events/list-events) of [`Event`](https://apidocs.chargebee.com/docs/api/events).
+- `rate_limited` has been added as a new value to enum query parameter `webhook_status.is_not` in [`list_events`](https://apidocs.chargebee.com/docs/api/events/list-events) of [`Event`](https://apidocs.chargebee.com/docs/api/events).
+- `rate_limited` has been added as a new value to enum query parameter `webhook_status.in` in [`list_events`](https://apidocs.chargebee.com/docs/api/events/list-events) of [`Event`](https://apidocs.chargebee.com/docs/api/events).
+- `rate_limited` has been added as a new value to enum query parameter `webhook_status.not_in` in [`list_events`](https://apidocs.chargebee.com/docs/api/events/list-events) of [`Event`](https://apidocs.chargebee.com/docs/api/events).
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` 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).
+- `twint`, `go_pay`, `grab_pay`, `pay_co`, `after_pay`, `swish`, and `payme` 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).
+- `mada` has been added as a new value to enum request body parameter `card.brand` in [`create_using_permanent_token`](https://apidocs.chargebee.com/docs/api/payment_sources/create-using-permanent-token) of [`PaymentSource`](https://apidocs.chargebee.com/docs/api/payment_sources).
+
+
+
 ### v3.20.0 (2026-03-27)
 * * *
 ### New Resources:
diff --git a/VERSION b/VERSION
index eb9b76c..6075c9a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.20.0
+3.21.0
diff --git a/chargebee/main.py b/chargebee/main.py
index 89f4097..a38156f 100644
--- a/chargebee/main.py
+++ b/chargebee/main.py
@@ -71,6 +71,7 @@ def __init__(
         self.Event = chargebee.Event(self.env)
         self.Export = chargebee.Export(self.env)
         self.Feature = chargebee.Feature(self.env)
+        self.FilterCondition = chargebee.FilterCondition(self.env)
         self.GatewayErrorDetail = chargebee.GatewayErrorDetail(self.env)
         self.Gift = chargebee.Gift(self.env)
         self.Hierarchy = chargebee.Hierarchy(self.env)
@@ -120,6 +121,7 @@ def __init__(
         self.PromotionalCredit = chargebee.PromotionalCredit(self.env)
         self.Purchase = chargebee.Purchase(self.env)
         self.Quote = chargebee.Quote(self.env)
+        self.QuoteEntitlement = chargebee.QuoteEntitlement(self.env)
         self.QuoteLineGroup = chargebee.QuoteLineGroup(self.env)
         self.QuotedCharge = chargebee.QuotedCharge(self.env)
         self.QuotedDeltaRamp = chargebee.QuotedDeltaRamp(self.env)
diff --git a/chargebee/models/__init__.py b/chargebee/models/__init__.py
index 08ac4f8..8d1f5b8 100644
--- a/chargebee/models/__init__.py
+++ b/chargebee/models/__init__.py
@@ -3,6 +3,7 @@
     AccountReceivablesHandling,
     AccountType,
     Action,
+    AlarmStatus,
     ApiVersion,
     ApplyOn,
     AutoCollection,
@@ -47,6 +48,7 @@
     InvoiceDunningHandling,
     ItemType,
     Layout,
+    Mode,
     NotifyReferralSystem,
     OfflinePaymentMethod,
     OnEvent,
@@ -88,7 +90,6 @@
     VoucherType,
     WindowSize,
     ChargeOn,
-    AlertStatus,
     EnabledEvents,
 )
 
@@ -162,6 +163,8 @@
 
 from chargebee.models.feature.operations import Feature
 
+from chargebee.models.filter_condition.operations import FilterCondition
+
 from chargebee.models.gateway_error_detail.operations import GatewayErrorDetail
 
 from chargebee.models.gift.operations import Gift
@@ -256,6 +259,8 @@
 
 from chargebee.models.quote.operations import Quote
 
+from chargebee.models.quote_entitlement.operations import QuoteEntitlement
+
 from chargebee.models.quote_line_group.operations import QuoteLineGroup
 
 from chargebee.models.quoted_charge.operations import QuotedCharge
diff --git a/chargebee/models/alert/operations.py b/chargebee/models/alert/operations.py
index 4b0ca83..4d7c469 100644
--- a/chargebee/models/alert/operations.py
+++ b/chargebee/models/alert/operations.py
@@ -2,6 +2,8 @@
 from chargebee import request, environment
 from typing import TypedDict, Required, NotRequired, Dict, List, Any, cast
 from enum import Enum
+from chargebee.filters import Filters
+from chargebee.models import enums, filter_condition
 
 
 @dataclass
@@ -15,11 +17,147 @@ class Status(Enum):
         def __str__(self):
             return self.value
 
-    class Scope(Enum):
-        GLOBAL = "global"
-        SUBSCRIPTION = "subscription"
+    class CreateThresholdParams(TypedDict):
+        mode: Required[enums.Mode]
+        value: Required[float]
 
-        def __str__(self):
-            return self.value
+    class CreateFilterConditionParams(TypedDict):
+        field: NotRequired["filter_condition.FilterCondition.Field"]
+        operator: NotRequired["filter_condition.FilterCondition.Operator"]
+        value: NotRequired[str]
+
+    class UpdateThresholdParams(TypedDict):
+        mode: NotRequired[enums.Mode]
+        value: NotRequired[float]
+
+    class CreateParams(TypedDict):
+        type: Required[enums.Type]
+        name: Required[str]
+        description: NotRequired[str]
+        metered_feature_id: Required[str]
+        subscription_id: NotRequired[str]
+        threshold: Required["Alert.CreateThresholdParams"]
+        meta: NotRequired[str]
+        filter_conditions: NotRequired[List["Alert.CreateFilterConditionParams"]]
+
+    class ListParams(TypedDict):
+        limit: NotRequired[int]
+        offset: NotRequired[str]
+        id: NotRequired[Filters.StringFilter]
+        type: NotRequired[Filters.EnumFilter]
+        subscription_id: NotRequired[Filters.StringFilter]
+        status: NotRequired[Filters.EnumFilter]
+
+    class UpdateParams(TypedDict):
+        threshold: NotRequired["Alert.UpdateThresholdParams"]
+        status: NotRequired["Alert.Status"]
+
+    class ApplicationAlertsForSubscriptionParams(TypedDict):
+        limit: NotRequired[int]
+        offset: NotRequired[str]
+        status: NotRequired[Filters.EnumFilter]
+        type: NotRequired[Filters.EnumFilter]
+
+    def create(self, params: CreateParams, headers=None) -> CreateResponse:
+        jsonKeys = {}
+        options = {
+            "isIdempotent": True,
+        }
+        return request.send(
+            "post",
+            request.uri_path("alerts"),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            CreateResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
+
+    def retrieve(self, id, headers=None) -> RetrieveResponse:
+        jsonKeys = {}
+        options = {}
+        return request.send(
+            "get",
+            request.uri_path("alerts", id),
+            self.env,
+            None,
+            headers,
+            RetrieveResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
+
+    def list(self, params: ListParams = None, headers=None) -> ListResponse:
+        jsonKeys = {}
+        options = {}
+        return request.send_list_request(
+            "get",
+            request.uri_path("alerts"),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            ListResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
+
+    def update(self, id, params: UpdateParams = None, headers=None) -> UpdateResponse:
+        jsonKeys = {}
+        options = {
+            "isIdempotent": True,
+        }
+        return request.send(
+            "post",
+            request.uri_path("alerts", id),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            UpdateResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
+
+    def delete(self, id, headers=None) -> DeleteResponse:
+        jsonKeys = {}
+        options = {
+            "isIdempotent": True,
+        }
+        return request.send(
+            "post",
+            request.uri_path("alerts", id, "delete"),
+            self.env,
+            None,
+            headers,
+            DeleteResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
 
-    pass
+    def application_alerts_for_subscription(
+        self, id, params: ApplicationAlertsForSubscriptionParams = None, headers=None
+    ) -> ApplicationAlertsForSubscriptionResponse:
+        jsonKeys = {}
+        options = {}
+        return request.send(
+            "get",
+            request.uri_path("subscriptions", id, "applicable_alerts"),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            ApplicationAlertsForSubscriptionResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
diff --git a/chargebee/models/alert/responses.py b/chargebee/models/alert/responses.py
index a33fd5f..3286f77 100644
--- a/chargebee/models/alert/responses.py
+++ b/chargebee/models/alert/responses.py
@@ -1,6 +1,8 @@
 from dataclasses import dataclass
 from chargebee.model import Model
 from typing import Dict, List, Any
+from chargebee.response import Response
+from chargebee.models import filter_condition
 
 
 @dataclass
@@ -13,8 +15,51 @@ class AlertResponse(Model):
     metered_feature_id: str = None
     subscription_id: str = None
     status: str = None
-    alarm_triggered_at: int = None
-    scope: str = None
     meta: str = None
     created_at: int = None
     updated_at: int = None
+
+
+@dataclass
+class CreateResponse(Response):
+    is_idempotency_replayed: bool
+    alert: AlertResponse
+
+
+@dataclass
+class RetrieveResponse(Response):
+    alert: AlertResponse
+
+
+@dataclass
+class ListAlertResponse:
+    alert: AlertResponse
+
+
+@dataclass
+class ListResponse(Response):
+    list: List[ListAlertResponse]
+    next_offset: str = None
+
+
+@dataclass
+class UpdateResponse(Response):
+    is_idempotency_replayed: bool
+    alert: AlertResponse
+
+
+@dataclass
+class DeleteResponse(Response):
+    is_idempotency_replayed: bool
+    alert: AlertResponse
+
+
+@dataclass
+class ApplicationAlertsForSubscriptionAlertResponse:
+    alert: AlertResponse
+
+
+@dataclass
+class ApplicationAlertsForSubscriptionResponse(Response):
+    list: List[ApplicationAlertsForSubscriptionAlertResponse]
+    next_offset: str = None
diff --git a/chargebee/models/alert_status/operations.py b/chargebee/models/alert_status/operations.py
index f4052a6..a79a4cf 100644
--- a/chargebee/models/alert_status/operations.py
+++ b/chargebee/models/alert_status/operations.py
@@ -1,10 +1,56 @@
 from .responses import *
 from chargebee import request, environment
 from typing import TypedDict, Required, NotRequired, Dict, List, Any, cast
+from chargebee.filters import Filters
 
 
 @dataclass
 class AlertStatus:
     env: environment.Environment
 
-    pass
+    class AlertStatusesForSubscriptionParams(TypedDict):
+        limit: NotRequired[int]
+        offset: NotRequired[str]
+        alarm_status: NotRequired[Filters.EnumFilter]
+        alert_id: NotRequired[Filters.StringFilter]
+
+    class AlertStatusesForAlertParams(TypedDict):
+        limit: NotRequired[int]
+        offset: NotRequired[str]
+        alarm_status: NotRequired[Filters.EnumFilter]
+
+    def alert_statuses_for_subscription(
+        self, id, params: AlertStatusesForSubscriptionParams = None, headers=None
+    ) -> AlertStatusesForSubscriptionResponse:
+        jsonKeys = {}
+        options = {}
+        return request.send(
+            "get",
+            request.uri_path("subscriptions", id, "alert_statuses"),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            AlertStatusesForSubscriptionResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
+
+    def alert_statuses_for_alert(
+        self, id, params: AlertStatusesForAlertParams = None, headers=None
+    ) -> AlertStatusesForAlertResponse:
+        jsonKeys = {}
+        options = {}
+        return request.send(
+            "get",
+            request.uri_path("alerts", id, "alert_statuses"),
+            self.env,
+            cast(Dict[Any, Any], params),
+            headers,
+            AlertStatusesForAlertResponse,
+            None,
+            False,
+            jsonKeys,
+            options,
+        )
diff --git a/chargebee/models/alert_status/responses.py b/chargebee/models/alert_status/responses.py
index d6d4212..cb72745 100644
--- a/chargebee/models/alert_status/responses.py
+++ b/chargebee/models/alert_status/responses.py
@@ -1,6 +1,7 @@
 from dataclasses import dataclass
 from chargebee.model import Model
 from typing import Dict, List, Any
+from chargebee.response import Response
 
 
 @dataclass
@@ -8,5 +9,27 @@ class AlertStatusResponse(Model):
     raw_data: Dict[Any, Any] = None
     alert_id: str = None
     subscription_id: str = None
-    alert_status: str = None
+    alarm_status: str = None
     alarm_triggered_at: int = None
+
+
+@dataclass
+class AlertStatusesForSubscriptionAlertStatusResponse:
+    alert_status: AlertStatusResponse
+
+
+@dataclass
+class AlertStatusesForSubscriptionResponse(Response):
+    list: List[AlertStatusesForSubscriptionAlertStatusResponse]
+    next_offset: str = None
+
+
+@dataclass
+class AlertStatusesForAlertAlertStatusResponse:
+    alert_status: AlertStatusResponse
+
+
+@dataclass
+class AlertStatusesForAlertResponse(Response):
+    list: List[AlertStatusesForAlertAlertStatusResponse]
+    next_offset: str = None
diff --git a/chargebee/models/card/operations.py b/chargebee/models/card/operations.py
index 25d3e2e..a670a5d 100644
--- a/chargebee/models/card/operations.py
+++ b/chargebee/models/card/operations.py
@@ -46,6 +46,7 @@ class CardType(Enum):
         MAESTRO = "maestro"
         DANKORT = "dankort"
         CARTES_BANCAIRES = "cartes_bancaires"
+        MADA = "mada"
         OTHER = "other"
         NOT_APPLICABLE = "not_applicable"
 
diff --git a/chargebee/models/enums.py b/chargebee/models/enums.py
index f41470c..297f958 100644
--- a/chargebee/models/enums.py
+++ b/chargebee/models/enums.py
@@ -36,7 +36,7 @@ def __str__(self):
         return self.value
 
 
-class AlertStatus(Enum):
+class AlarmStatus(Enum):
     WITHIN_LIMIT = "within_limit"
     IN_ALARM = "in_alarm"
 
@@ -638,6 +638,10 @@ class EntityType(Enum):
     PLAN_ITEM_PRICE = "plan_item_price"
     ADDON_ITEM_PRICE = "addon_item_price"
     CHARGE_ITEM_PRICE = "charge_item_price"
+    PLAN_PRICE = "plan_price"
+    ADDON_PRICE = "addon_price"
+    CHARGE_PRICE = "charge_price"
+    CHARGE = "charge"
     INVOICE = "invoice"
     QUOTE = "quote"
     CREDIT_NOTE = "credit_note"
@@ -651,9 +655,6 @@ class EntityType(Enum):
     PLAN_ITEM = "plan_item"
     ADDON_ITEM = "addon_item"
     CHARGE_ITEM = "charge_item"
-    PLAN_PRICE = "plan_price"
-    ADDON_PRICE = "addon_price"
-    CHARGE_PRICE = "charge_price"
     DIFFERENTIAL_PRICE = "differential_price"
     ATTACHED_ITEM = "attached_item"
     FEATURE = "feature"
@@ -675,7 +676,6 @@ class EntityType(Enum):
     BUSINESS_RULE = "business_rule"
     RULESET = "ruleset"
     ALERT_STATUS = "alert_status"
-    CHARGE = "charge"
 
     def __str__(self):
         return self.value
@@ -1042,6 +1042,8 @@ class Gateway(Enum):
     EZIDEBIT = "ezidebit"
     TWIKEY = "twikey"
     TEMPUS = "tempus"
+    MOYASAR = "moyasar"
+    PAYWAY = "payway"
     GOCARDLESS = "gocardless"
     NOT_APPLICABLE = "not_applicable"
 
@@ -1083,6 +1085,14 @@ def __str__(self):
         return self.value
 
 
+class Mode(Enum):
+    ABSOLUTE = "absolute"
+    PERCENTAGE = "percentage"
+
+    def __str__(self):
+        return self.value
+
+
 class NotifyReferralSystem(Enum):
     NONE = "none"
     FIRST_PAID_CONVERSION = "first_paid_conversion"
@@ -1201,6 +1211,13 @@ class PaymentMethod(Enum):
     REVOLUT_PAY = "revolut_pay"
     CASH_APP_PAY = "cash_app_pay"
     PIX = "pix"
+    TWINT = "twint"
+    GO_PAY = "go_pay"
+    GRAB_PAY = "grab_pay"
+    PAY_CO = "pay_co"
+    AFTER_PAY = "after_pay"
+    SWISH = "swish"
+    PAYME = "payme"
 
     def __str__(self):
         return self.value
@@ -1251,6 +1268,13 @@ class PaymentMethodType(Enum):
     REVOLUT_PAY = "revolut_pay"
     CASH_APP_PAY = "cash_app_pay"
     PIX = "pix"
+    TWINT = "twint"
+    GO_PAY = "go_pay"
+    GRAB_PAY = "grab_pay"
+    PAY_CO = "pay_co"
+    AFTER_PAY = "after_pay"
+    SWISH = "swish"
+    PAYME = "payme"
 
     def __str__(self):
         return self.value
@@ -1509,6 +1533,13 @@ class Type(Enum):
     REVOLUT_PAY = "revolut_pay"
     CASH_APP_PAY = "cash_app_pay"
     PIX = "pix"
+    TWINT = "twint"
+    GO_PAY = "go_pay"
+    GRAB_PAY = "grab_pay"
+    PAY_CO = "pay_co"
+    AFTER_PAY = "after_pay"
+    SWISH = "swish"
+    PAYME = "payme"
     FREE_TRIAL = "free_trial"
     PAY_UP_FRONT = "pay_up_front"
     PAY_AS_YOU_GO = "pay_as_you_go"
diff --git a/chargebee/models/event/operations.py b/chargebee/models/event/operations.py
index c5c2e35..a4a56e6 100644
--- a/chargebee/models/event/operations.py
+++ b/chargebee/models/event/operations.py
@@ -20,6 +20,7 @@ class WebhookStatus(Enum):
         SKIPPED = "skipped"
         NOT_APPLICABLE = "not_applicable"
         DISABLED = "disabled"
+        RATE_LIMITED = "rate_limited"
 
         def __str__(self):
             return self.value
@@ -33,6 +34,7 @@ class WebhookWebhookStatus(Enum):
         SKIPPED = "skipped"
         NOT_APPLICABLE = "not_applicable"
         DISABLED = "disabled"
+        RATE_LIMITED = "rate_limited"
 
         def __str__(self):
             return self.value
diff --git a/chargebee/models/filter_condition/__init__.py b/chargebee/models/filter_condition/__init__.py
new file mode 100644
index 0000000..23d31bb
--- /dev/null
+++ b/chargebee/models/filter_condition/__init__.py
@@ -0,0 +1,2 @@
+from .operations import FilterCondition
+from .responses import FilterConditionResponse
diff --git a/chargebee/models/filter_condition/operations.py b/chargebee/models/filter_condition/operations.py
new file mode 100644
index 0000000..9f7aab6
--- /dev/null
+++ b/chargebee/models/filter_condition/operations.py
@@ -0,0 +1,24 @@
+from .responses import *
+from chargebee import request, environment
+from typing import TypedDict, Required, NotRequired, Dict, List, Any, cast
+from enum import Enum
+
+
+@dataclass
+class FilterCondition:
+    env: environment.Environment
+
+    class Field(Enum):
+        PLAN_PRICE_ID = "plan_price_id"
+
+        def __str__(self):
+            return self.value
+
+    class Operator(Enum):
+        EQUALS = "equals"
+        NOT_EQUALS = "not_equals"
+
+        def __str__(self):
+            return self.value
+
+    pass
diff --git a/chargebee/models/filter_condition/responses.py b/chargebee/models/filter_condition/responses.py
new file mode 100644
index 0000000..831486e
--- /dev/null
+++ b/chargebee/models/filter_condition/responses.py
@@ -0,0 +1,11 @@
+from dataclasses import dataclass
+from chargebee.model import Model
+from typing import Dict, List, Any
+
+
+@dataclass
+class FilterConditionResponse(Model):
+    raw_data: Dict[Any, Any] = None
+    field: str = None
+    operator: str = None
+    value: str = None
diff --git a/chargebee/models/invoice/operations.py b/chargebee/models/invoice/operations.py
index 1c78f70..c64ae78 100644
--- a/chargebee/models/invoice/operations.py
+++ b/chargebee/models/invoice/operations.py
@@ -1104,6 +1104,7 @@ class ListParams(TypedDict):
         voided_at: NotRequired[Filters.TimestampFilter]
         void_reason_code: NotRequired[Filters.StringFilter]
         sort_by: NotRequired[Filters.SortFilter]
+        exclude: NotRequired[Filters.StringFilter]
 
     class InvoicesForCustomerParams(TypedDict):
         limit: NotRequired[int]
diff --git a/chargebee/models/payment_intent/operations.py b/chargebee/models/payment_intent/operations.py
index b1c1a2f..6838630 100644
--- a/chargebee/models/payment_intent/operations.py
+++ b/chargebee/models/payment_intent/operations.py
@@ -53,6 +53,13 @@ class PaymentMethodType(Enum):
         WECHAT_PAY = "wechat_pay"
         ALIPAY = "alipay"
         PIX = "pix"
+        TWINT = "twint"
+        GO_PAY = "go_pay"
+        GRAB_PAY = "grab_pay"
+        PAY_CO = "pay_co"
+        AFTER_PAY = "after_pay"
+        SWISH = "swish"
+        PAYME = "payme"
 
         def __str__(self):
             return self.value
@@ -112,6 +119,7 @@ class CreateParams(TypedDict):
         currency_code: Required[str]
         gateway_account_id: NotRequired[str]
         reference_id: NotRequired[str]
+        defer_payment_method_type: NotRequired[bool]
         payment_method_type: NotRequired["PaymentIntent.PaymentMethodType"]
         success_url: NotRequired[str]
         failure_url: NotRequired[str]
diff --git a/chargebee/models/payment_source/operations.py b/chargebee/models/payment_source/operations.py
index bd78782..27f2189 100644
--- a/chargebee/models/payment_source/operations.py
+++ b/chargebee/models/payment_source/operations.py
@@ -42,6 +42,7 @@ class CardBrand(Enum):
         MAESTRO = "maestro"
         DANKORT = "dankort"
         CARTES_BANCAIRES = "cartes_bancaires"
+        MADA = "mada"
         NOT_APPLICABLE = "not_applicable"
 
         def __str__(self):
diff --git a/chargebee/models/quote/operations.py b/chargebee/models/quote/operations.py
index 09241bc..51522b4 100644
--- a/chargebee/models/quote/operations.py
+++ b/chargebee/models/quote/operations.py
@@ -1359,6 +1359,7 @@ class CreateForChargeItemsAndChargesParams(TypedDict):
         billing_address: NotRequired[
             "Quote.CreateForChargeItemsAndChargesBillingAddressParams"
         ]
+        net_term_days: NotRequired[int]
         shipping_address: NotRequired[
             "Quote.CreateForChargeItemsAndChargesShippingAddressParams"
         ]
@@ -1384,6 +1385,7 @@ class EditForChargeItemsAndChargesParams(TypedDict):
         billing_address: NotRequired[
             "Quote.EditForChargeItemsAndChargesBillingAddressParams"
         ]
+        net_term_days: NotRequired[int]
         shipping_address: NotRequired[
             "Quote.EditForChargeItemsAndChargesShippingAddressParams"
         ]
diff --git a/chargebee/models/quote_entitlement/__init__.py b/chargebee/models/quote_entitlement/__init__.py
new file mode 100644
index 0000000..b36f939
--- /dev/null
+++ b/chargebee/models/quote_entitlement/__init__.py
@@ -0,0 +1,2 @@
+from .operations import QuoteEntitlement
+from .responses import QuoteEntitlementResponse
diff --git a/chargebee/models/quote_entitlement/operations.py b/chargebee/models/quote_entitlement/operations.py
new file mode 100644
index 0000000..b720386
--- /dev/null
+++ b/chargebee/models/quote_entitlement/operations.py
@@ -0,0 +1,20 @@
+from .responses import *
+from chargebee import request, environment
+from typing import TypedDict, Required, NotRequired, Dict, List, Any, cast
+from enum import Enum
+
+
+@dataclass
+class QuoteEntitlement:
+    env: environment.Environment
+
+    class EntityType(Enum):
+        PLAN_PRICE = "plan_price"
+        ADDON_PRICE = "addon_price"
+        CHARGE_PRICE = "charge_price"
+        CHARGE = "charge"
+
+        def __str__(self):
+            return self.value
+
+    pass
diff --git a/chargebee/models/quote_entitlement/responses.py b/chargebee/models/quote_entitlement/responses.py
new file mode 100644
index 0000000..3010f03
--- /dev/null
+++ b/chargebee/models/quote_entitlement/responses.py
@@ -0,0 +1,17 @@
+from dataclasses import dataclass
+from chargebee.model import Model
+from typing import Dict, List, Any
+
+
+@dataclass
+class QuoteEntitlementResponse(Model):
+    raw_data: Dict[Any, Any] = None
+    entity_id: str = None
+    entity_type: str = None
+    feature_id: str = None
+    value: str = None
+    is_enabled: bool = None
+    start_date: int = None
+    end_date: int = None
+    created_at: int = None
+    modified_at: int = None
diff --git a/chargebee/models/virtual_bank_account/operations.py b/chargebee/models/virtual_bank_account/operations.py
index 6aff2f2..bbd2d14 100644
--- a/chargebee/models/virtual_bank_account/operations.py
+++ b/chargebee/models/virtual_bank_account/operations.py
@@ -24,11 +24,13 @@ def __str__(self):
     class CreateUsingPermanentTokenParams(TypedDict):
         customer_id: Required[str]
         reference_id: Required[str]
+        gateway_account_id: NotRequired[str]
         scheme: NotRequired["VirtualBankAccount.Scheme"]
 
     class CreateParams(TypedDict):
         customer_id: Required[str]
         email: NotRequired[str]
+        gateway_account_id: NotRequired[str]
         scheme: NotRequired["VirtualBankAccount.Scheme"]
 
     class ListParams(TypedDict):
diff --git a/chargebee/version.py b/chargebee/version.py
index 070a245..6b71007 100644
--- a/chargebee/version.py
+++ b/chargebee/version.py
@@ -1 +1 @@
-VERSION = "3.20.0"
+VERSION = "3.21.0"