diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index d7e1f5fa4b..9f46827f56 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v2024
\ No newline at end of file
+v2025
\ No newline at end of file
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/Cadence.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/Cadence.cs
index b8fde70d1e..0cc871b0f3 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/Cadence.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/Cadence.cs
@@ -85,7 +85,7 @@ public class Cadence : StripeEntity<Cadence>, IHasId, IHasMetadata, IHasObject
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("next_billing_date")]
 #endif
-        public DateTime NextBillingDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? NextBillingDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The payer determines the entity financially responsible for the bill.
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleDayTime.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleDayTime.cs
index bc6b77ba96..056ba1ad9c 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleDayTime.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleDayTime.cs
@@ -36,6 +36,6 @@ public class CadenceBillingCycleDayTime : StripeEntity<CadenceBillingCycleDayTim
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("second")]
 #endif
-        public long Second { get; set; }
+        public long? Second { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonth.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonth.cs
index fd3a92699a..980c2eb0ba 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonth.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonth.cs
@@ -27,7 +27,7 @@ public class CadenceBillingCycleMonth : StripeEntity<CadenceBillingCycleMonth>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("month_of_year")]
 #endif
-        public long MonthOfYear { get; set; }
+        public long? MonthOfYear { get; set; }
 
         /// <summary>
         /// The time at which the billing cycle ends.
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonthTime.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonthTime.cs
index 695ff998d0..33f8a0ad2b 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonthTime.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleMonthTime.cs
@@ -36,6 +36,6 @@ public class CadenceBillingCycleMonthTime : StripeEntity<CadenceBillingCycleMont
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("second")]
 #endif
-        public long Second { get; set; }
+        public long? Second { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleWeekTime.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleWeekTime.cs
index c94c1315c8..213baba2a9 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleWeekTime.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleWeekTime.cs
@@ -36,6 +36,6 @@ public class CadenceBillingCycleWeekTime : StripeEntity<CadenceBillingCycleWeekT
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("second")]
 #endif
-        public long Second { get; set; }
+        public long? Second { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleYearTime.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleYearTime.cs
index 69c5fb99d7..38709f7177 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleYearTime.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceBillingCycleYearTime.cs
@@ -36,6 +36,6 @@ public class CadenceBillingCycleYearTime : StripeEntity<CadenceBillingCycleYearT
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("second")]
 #endif
-        public long Second { get; set; }
+        public long? Second { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceSettingsDataCollectionPaymentMethodOptionsCardMandateOptions.cs b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceSettingsDataCollectionPaymentMethodOptionsCardMandateOptions.cs
index 7b578e4587..3f6839fb8f 100644
--- a/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceSettingsDataCollectionPaymentMethodOptionsCardMandateOptions.cs
+++ b/src/Stripe.net/Entities/V2/Billing/Cadences/CadenceSettingsDataCollectionPaymentMethodOptionsCardMandateOptions.cs
@@ -15,7 +15,7 @@ public class CadenceSettingsDataCollectionPaymentMethodOptionsCardMandateOptions
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("amount")]
 #endif
-        public long Amount { get; set; }
+        public long? Amount { get; set; }
 
         /// <summary>
         /// The AmountType for the mandate. One of <c>fixed</c> or <c>maximum</c>.
diff --git a/src/Stripe.net/Entities/V2/Billing/CollectionSettingVersions/CollectionSettingVersionPaymentMethodOptionsCardMandateOptions.cs b/src/Stripe.net/Entities/V2/Billing/CollectionSettingVersions/CollectionSettingVersionPaymentMethodOptionsCardMandateOptions.cs
index 63c7c8fcb6..24a0082bdf 100644
--- a/src/Stripe.net/Entities/V2/Billing/CollectionSettingVersions/CollectionSettingVersionPaymentMethodOptionsCardMandateOptions.cs
+++ b/src/Stripe.net/Entities/V2/Billing/CollectionSettingVersions/CollectionSettingVersionPaymentMethodOptionsCardMandateOptions.cs
@@ -15,7 +15,7 @@ public class CollectionSettingVersionPaymentMethodOptionsCardMandateOptions : St
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("amount")]
 #endif
-        public long Amount { get; set; }
+        public long? Amount { get; set; }
 
         /// <summary>
         /// The AmountType for the mandate. One of <c>fixed</c> or <c>maximum</c>.
diff --git a/src/Stripe.net/Entities/V2/Billing/CollectionSettings/CollectionSettingPaymentMethodOptionsCardMandateOptions.cs b/src/Stripe.net/Entities/V2/Billing/CollectionSettings/CollectionSettingPaymentMethodOptionsCardMandateOptions.cs
index 33a25f5792..05a993e08d 100644
--- a/src/Stripe.net/Entities/V2/Billing/CollectionSettings/CollectionSettingPaymentMethodOptionsCardMandateOptions.cs
+++ b/src/Stripe.net/Entities/V2/Billing/CollectionSettings/CollectionSettingPaymentMethodOptionsCardMandateOptions.cs
@@ -15,7 +15,7 @@ public class CollectionSettingPaymentMethodOptionsCardMandateOptions : StripeEnt
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("amount")]
 #endif
-        public long Amount { get; set; }
+        public long? Amount { get; set; }
 
         /// <summary>
         /// The AmountType for the mandate. One of <c>fixed</c> or <c>maximum</c>.
diff --git a/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonAdditionalTermsOfServiceAccount.cs b/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonAdditionalTermsOfServiceAccount.cs
index 029bb1c88a..648351d244 100644
--- a/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonAdditionalTermsOfServiceAccount.cs
+++ b/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonAdditionalTermsOfServiceAccount.cs
@@ -18,7 +18,7 @@ public class AccountPersonAdditionalTermsOfServiceAccount : StripeEntity<Account
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the Account's representative accepted the terms of service.
diff --git a/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonRelationship.cs b/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonRelationship.cs
index 387723b012..94d2f12aee 100644
--- a/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonRelationship.cs
+++ b/src/Stripe.net/Entities/V2/Core/AccountPersons/AccountPersonRelationship.cs
@@ -15,7 +15,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("authorizer")]
 #endif
-        public bool Authorizer { get; set; }
+        public bool? Authorizer { get; set; }
 
         /// <summary>
         /// Whether the individual is a director of the Account’s legal entity. Directors are
@@ -26,7 +26,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("director")]
 #endif
-        public bool Director { get; set; }
+        public bool? Director { get; set; }
 
         /// <summary>
         /// Whether the individual has significant responsibility to control, manage, or direct the
@@ -36,7 +36,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("executive")]
 #endif
-        public bool Executive { get; set; }
+        public bool? Executive { get; set; }
 
         /// <summary>
         /// Whether the individual is the legal guardian of the Account’s representative.
@@ -45,7 +45,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("legal_guardian")]
 #endif
-        public bool LegalGuardian { get; set; }
+        public bool? LegalGuardian { get; set; }
 
         /// <summary>
         /// Whether the individual is an owner of the Account’s legal entity.
@@ -54,7 +54,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("owner")]
 #endif
-        public bool Owner { get; set; }
+        public bool? Owner { get; set; }
 
         /// <summary>
         /// The percent owned by the individual of the Account’s legal entity.
@@ -76,7 +76,7 @@ public class AccountPersonRelationship : StripeEntity<AccountPersonRelationship>
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("representative")]
 #endif
-        public bool Representative { get; set; }
+        public bool? Representative { get; set; }
 
         /// <summary>
         /// The individual's title (e.g., CEO, Support Engineer).
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationCustomerBillingInvoice.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationCustomerBillingInvoice.cs
index 7cc8f4bd85..0863e19f5b 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationCustomerBillingInvoice.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationCustomerBillingInvoice.cs
@@ -35,7 +35,7 @@ public class AccountConfigurationCustomerBillingInvoice : StripeEntity<AccountCo
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("next_sequence")]
 #endif
-        public long NextSequence { get; set; }
+        public long? NextSequence { get; set; }
 
         /// <summary>
         /// The prefix for the customer used to generate unique invoice numbers. Must be 3–12
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationMerchantCardPaymentsDeclineOn.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationMerchantCardPaymentsDeclineOn.cs
index 16eedf2a96..c6a655e8eb 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationMerchantCardPaymentsDeclineOn.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountConfigurationMerchantCardPaymentsDeclineOn.cs
@@ -17,7 +17,7 @@ public class AccountConfigurationMerchantCardPaymentsDeclineOn : StripeEntity<Ac
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("avs_failure")]
 #endif
-        public bool AvsFailure { get; set; }
+        public bool? AvsFailure { get; set; }
 
         /// <summary>
         /// Whether Stripe automatically declines charges with an incorrect CVC. This setting only
@@ -27,6 +27,6 @@ public class AccountConfigurationMerchantCardPaymentsDeclineOn : StripeEntity<Ac
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("cvc_failure")]
 #endif
-        public bool CvcFailure { get; set; }
+        public bool? CvcFailure { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsDirectorshipDeclaration.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsDirectorshipDeclaration.cs
index c1422da9e4..a8644fcf31 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsDirectorshipDeclaration.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsDirectorshipDeclaration.cs
@@ -17,7 +17,7 @@ public class AccountIdentityAttestationsDirectorshipDeclaration : StripeEntity<A
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the director attestation was made.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsOwnershipDeclaration.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsOwnershipDeclaration.cs
index eac0c7b061..3b9a049e16 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsOwnershipDeclaration.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsOwnershipDeclaration.cs
@@ -18,7 +18,7 @@ public class AccountIdentityAttestationsOwnershipDeclaration : StripeEntity<Acco
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the beneficial owner attestation was made.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsPersonsProvided.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsPersonsProvided.cs
index b3d7068c57..2bb260c843 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsPersonsProvided.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsPersonsProvided.cs
@@ -17,7 +17,7 @@ public class AccountIdentityAttestationsPersonsProvided : StripeEntity<AccountId
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("directors")]
 #endif
-        public bool Directors { get; set; }
+        public bool? Directors { get; set; }
 
         /// <summary>
         /// Whether the company’s executives have been provided. Set this Boolean to true after
@@ -28,7 +28,7 @@ public class AccountIdentityAttestationsPersonsProvided : StripeEntity<AccountId
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("executives")]
 #endif
-        public bool Executives { get; set; }
+        public bool? Executives { get; set; }
 
         /// <summary>
         /// Whether the company’s owners have been provided. Set this Boolean to true after creating
@@ -39,7 +39,7 @@ public class AccountIdentityAttestationsPersonsProvided : StripeEntity<AccountId
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("owners")]
 #endif
-        public bool Owners { get; set; }
+        public bool? Owners { get; set; }
 
         /// <summary>
         /// Reason for why the company is exempt from providing ownership information.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceAccount.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceAccount.cs
index 7a38f158b9..2aac08f703 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceAccount.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceAccount.cs
@@ -18,7 +18,7 @@ public class AccountIdentityAttestationsTermsOfServiceAccount : StripeEntity<Acc
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the Account's representative accepted the terms of service.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceStorer.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceStorer.cs
index 9da4960180..1ab7d65a64 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceStorer.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityAttestationsTermsOfServiceStorer.cs
@@ -18,7 +18,7 @@ public class AccountIdentityAttestationsTermsOfServiceStorer : StripeEntity<Acco
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the Account's representative accepted the terms of service.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityBusinessDetails.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityBusinessDetails.cs
index 0e34530f6f..27b0cf6306 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityBusinessDetails.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityBusinessDetails.cs
@@ -44,7 +44,7 @@ public class AccountIdentityBusinessDetails : StripeEntity<AccountIdentityBusine
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("estimated_worker_count")]
 #endif
-        public long EstimatedWorkerCount { get; set; }
+        public long? EstimatedWorkerCount { get; set; }
 
         /// <summary>
         /// The provided ID numbers of a business entity.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualAdditionalTermsOfServiceAccount.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualAdditionalTermsOfServiceAccount.cs
index 3abc65b4eb..0b0e5650d8 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualAdditionalTermsOfServiceAccount.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualAdditionalTermsOfServiceAccount.cs
@@ -18,7 +18,7 @@ public class AccountIdentityIndividualAdditionalTermsOfServiceAccount : StripeEn
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("date")]
 #endif
-        public DateTime Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Date { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The IP address from which the Account's representative accepted the terms of service.
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualRelationship.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualRelationship.cs
index 754919d6e6..7e08ecf5cd 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualRelationship.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountIdentityIndividualRelationship.cs
@@ -15,7 +15,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("authorizer")]
 #endif
-        public bool Authorizer { get; set; }
+        public bool? Authorizer { get; set; }
 
         /// <summary>
         /// Whether the individual is a director of the Account’s legal entity. Directors are
@@ -26,7 +26,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("director")]
 #endif
-        public bool Director { get; set; }
+        public bool? Director { get; set; }
 
         /// <summary>
         /// Whether the individual has significant responsibility to control, manage, or direct the
@@ -36,7 +36,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("executive")]
 #endif
-        public bool Executive { get; set; }
+        public bool? Executive { get; set; }
 
         /// <summary>
         /// Whether the individual is the legal guardian of the Account’s representative.
@@ -45,7 +45,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("legal_guardian")]
 #endif
-        public bool LegalGuardian { get; set; }
+        public bool? LegalGuardian { get; set; }
 
         /// <summary>
         /// Whether the individual is an owner of the Account’s legal entity.
@@ -54,7 +54,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("owner")]
 #endif
-        public bool Owner { get; set; }
+        public bool? Owner { get; set; }
 
         /// <summary>
         /// The percent owned by the individual of the Account’s legal entity.
@@ -76,7 +76,7 @@ public class AccountIdentityIndividualRelationship : StripeEntity<AccountIdentit
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("representative")]
 #endif
-        public bool Representative { get; set; }
+        public bool? Representative { get; set; }
 
         /// <summary>
         /// The individual's title (e.g., CEO, Support Engineer).
diff --git a/src/Stripe.net/Entities/V2/Core/Accounts/AccountRequirementsSummaryMinimumDeadline.cs b/src/Stripe.net/Entities/V2/Core/Accounts/AccountRequirementsSummaryMinimumDeadline.cs
index 8e5985b959..b9571032be 100644
--- a/src/Stripe.net/Entities/V2/Core/Accounts/AccountRequirementsSummaryMinimumDeadline.cs
+++ b/src/Stripe.net/Entities/V2/Core/Accounts/AccountRequirementsSummaryMinimumDeadline.cs
@@ -26,6 +26,6 @@ public class AccountRequirementsSummaryMinimumDeadline : StripeEntity<AccountReq
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("time")]
 #endif
-        public DateTime Time { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? Time { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPaymentQuotes/OutboundPaymentQuoteFxQuote.cs b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPaymentQuotes/OutboundPaymentQuoteFxQuote.cs
index bc0de2b87f..b3e530d81e 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPaymentQuotes/OutboundPaymentQuoteFxQuote.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPaymentQuotes/OutboundPaymentQuoteFxQuote.cs
@@ -29,7 +29,7 @@ public class OutboundPaymentQuoteFxQuote : StripeEntity<OutboundPaymentQuoteFxQu
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("lock_expires_at")]
 #endif
-        public DateTime LockExpiresAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? LockExpiresAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Lock status of the quote. Transitions from active to expired once past the
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPayment.cs b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPayment.cs
index 6fd1d7e924..e05bbc2f81 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPayment.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPayment.cs
@@ -90,7 +90,7 @@ public class OutboundPayment : StripeEntity<OutboundPayment>, IHasId, IHasMetada
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("expected_arrival_date")]
 #endif
-        public DateTime ExpectedArrivalDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? ExpectedArrivalDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The FinancialAccount that funds were pulled from.
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPaymentStatusTransitions.cs b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPaymentStatusTransitions.cs
index 5f35f64f8c..898dba4cfc 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPaymentStatusTransitions.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundPayments/OutboundPaymentStatusTransitions.cs
@@ -18,7 +18,7 @@ public class OutboundPaymentStatusTransitions : StripeEntity<OutboundPaymentStat
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("canceled_at")]
 #endif
-        public DateTime CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundPayment changed status to <c>failed</c>.
@@ -29,7 +29,7 @@ public class OutboundPaymentStatusTransitions : StripeEntity<OutboundPaymentStat
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("failed_at")]
 #endif
-        public DateTime FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundPayment changed status to <c>posted</c>.
@@ -40,7 +40,7 @@ public class OutboundPaymentStatusTransitions : StripeEntity<OutboundPaymentStat
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("posted_at")]
 #endif
-        public DateTime PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundPayment changed status to <c>returned</c>.
@@ -51,6 +51,6 @@ public class OutboundPaymentStatusTransitions : StripeEntity<OutboundPaymentStat
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("returned_at")]
 #endif
-        public DateTime ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransfer.cs b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransfer.cs
index 6d4dd73d28..da24b4348f 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransfer.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransfer.cs
@@ -90,7 +90,7 @@ public class OutboundTransfer : StripeEntity<OutboundTransfer>, IHasId, IHasMeta
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("expected_arrival_date")]
 #endif
-        public DateTime ExpectedArrivalDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? ExpectedArrivalDate { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The FinancialAccount that funds were pulled from.
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransferStatusTransitions.cs b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransferStatusTransitions.cs
index 6b580921a9..48755b5f11 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransferStatusTransitions.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/OutboundTransfers/OutboundTransferStatusTransitions.cs
@@ -18,7 +18,7 @@ public class OutboundTransferStatusTransitions : StripeEntity<OutboundTransferSt
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("canceled_at")]
 #endif
-        public DateTime CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundTransfer changed status to <c>failed</c>.
@@ -29,7 +29,7 @@ public class OutboundTransferStatusTransitions : StripeEntity<OutboundTransferSt
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("failed_at")]
 #endif
-        public DateTime FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundTransfer changed status to <c>posted</c>.
@@ -40,7 +40,7 @@ public class OutboundTransferStatusTransitions : StripeEntity<OutboundTransferSt
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("posted_at")]
 #endif
-        public DateTime PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when an OutboundTransfer changed status to <c>returned</c>.
@@ -51,6 +51,6 @@ public class OutboundTransferStatusTransitions : StripeEntity<OutboundTransferSt
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("returned_at")]
 #endif
-        public DateTime ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedCredits/ReceivedCreditStatusTransitions.cs b/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedCredits/ReceivedCreditStatusTransitions.cs
index e97779bf19..29df46951e 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedCredits/ReceivedCreditStatusTransitions.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedCredits/ReceivedCreditStatusTransitions.cs
@@ -18,7 +18,7 @@ public class ReceivedCreditStatusTransitions : StripeEntity<ReceivedCreditStatus
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("failed_at")]
 #endif
-        public DateTime FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when the ReceivedCredit changed status to <c>returned</c>.
@@ -29,7 +29,7 @@ public class ReceivedCreditStatusTransitions : StripeEntity<ReceivedCreditStatus
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("returned_at")]
 #endif
-        public DateTime ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? ReturnedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// Timestamp describing when the ReceivedCredit was marked as <c>succeeded</c>. Represented
@@ -40,6 +40,6 @@ public class ReceivedCreditStatusTransitions : StripeEntity<ReceivedCreditStatus
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("succeeded_at")]
 #endif
-        public DateTime SucceededAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? SucceededAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedDebits/ReceivedDebitStatusTransitions.cs b/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedDebits/ReceivedDebitStatusTransitions.cs
index b7dbd28f6f..0dd719f336 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedDebits/ReceivedDebitStatusTransitions.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/ReceivedDebits/ReceivedDebitStatusTransitions.cs
@@ -18,7 +18,7 @@ public class ReceivedDebitStatusTransitions : StripeEntity<ReceivedDebitStatusTr
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("canceled_at")]
 #endif
-        public DateTime CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? CanceledAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The time when the ReceivedDebit was marked as <c>failed</c>. Represented as a RFC 3339
@@ -29,7 +29,7 @@ public class ReceivedDebitStatusTransitions : StripeEntity<ReceivedDebitStatusTr
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("failed_at")]
 #endif
-        public DateTime FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? FailedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The time when the ReceivedDebit was marked as <c>succeeded</c>. Represented as a RFC
@@ -40,6 +40,6 @@ public class ReceivedDebitStatusTransitions : StripeEntity<ReceivedDebitStatusTr
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("succeeded_at")]
 #endif
-        public DateTime SucceededAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? SucceededAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/MoneyManagement/Transactions/TransactionStatusTransitions.cs b/src/Stripe.net/Entities/V2/MoneyManagement/Transactions/TransactionStatusTransitions.cs
index ffc2292126..3b1659f061 100644
--- a/src/Stripe.net/Entities/V2/MoneyManagement/Transactions/TransactionStatusTransitions.cs
+++ b/src/Stripe.net/Entities/V2/MoneyManagement/Transactions/TransactionStatusTransitions.cs
@@ -16,7 +16,7 @@ public class TransactionStatusTransitions : StripeEntity<TransactionStatusTransi
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("posted_at")]
 #endif
-        public DateTime PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? PostedAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
 
         /// <summary>
         /// The time at which the Transaction became void. Only present if status == void.
@@ -25,6 +25,6 @@ public class TransactionStatusTransitions : StripeEntity<TransactionStatusTransi
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("void_at")]
 #endif
-        public DateTime VoidAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
+        public DateTime? VoidAt { get; set; } = Stripe.Infrastructure.DateTimeUtils.UnixEpoch;
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetails.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetails.cs
index 54637f4999..6cbaf02811 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetails.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetails.cs
@@ -16,7 +16,7 @@ public class OffSessionPaymentAmountDetails : StripeEntity<OffSessionPaymentAmou
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("discount_amount")]
 #endif
-        public long DiscountAmount { get; set; }
+        public long? DiscountAmount { get; set; }
 
         /// <summary>
         /// A list of line items, each containing information about a product in the PaymentIntent.
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItem.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItem.cs
index 1c78500fe9..dadfa70444 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItem.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItem.cs
@@ -15,7 +15,7 @@ public class OffSessionPaymentAmountDetailsLineItem : StripeEntity<OffSessionPay
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("discount_amount")]
 #endif
-        public long DiscountAmount { get; set; }
+        public long? DiscountAmount { get; set; }
 
         /// <summary>
         /// Unique identifier of the product. At most 12 characters long.
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItemTax.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItemTax.cs
index b5d2e86c6d..24ce7aaea9 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItemTax.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsLineItemTax.cs
@@ -15,6 +15,6 @@ public class OffSessionPaymentAmountDetailsLineItemTax : StripeEntity<OffSession
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("total_tax_amount")]
 #endif
-        public long TotalTaxAmount { get; set; }
+        public long? TotalTaxAmount { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsShipping.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsShipping.cs
index 6dca446178..a89083b42b 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsShipping.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsShipping.cs
@@ -15,7 +15,7 @@ public class OffSessionPaymentAmountDetailsShipping : StripeEntity<OffSessionPay
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("amount")]
 #endif
-        public long Amount { get; set; }
+        public long? Amount { get; set; }
 
         /// <summary>
         /// The postal code that represents the shipping source.
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsTax.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsTax.cs
index 56234aba5e..f72382c8dc 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsTax.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentAmountDetailsTax.cs
@@ -15,6 +15,6 @@ public class OffSessionPaymentAmountDetailsTax : StripeEntity<OffSessionPaymentA
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("total_tax_amount")]
 #endif
-        public long TotalTaxAmount { get; set; }
+        public long? TotalTaxAmount { get; set; }
     }
 }
diff --git a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentTransferData.cs b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentTransferData.cs
index 781515fcee..5760c00ce5 100644
--- a/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentTransferData.cs
+++ b/src/Stripe.net/Entities/V2/Payments/OffSessionPayments/OffSessionPaymentTransferData.cs
@@ -21,7 +21,7 @@ public class OffSessionPaymentTransferData : StripeEntity<OffSessionPaymentTrans
 #if NET6_0_OR_GREATER
         [STJS.JsonPropertyName("amount")]
 #endif
-        public long Amount { get; set; }
+        public long? Amount { get; set; }
 
         /// <summary>
         /// The account (if any) that the payment is attributed to for tax reporting, and where