From 2db8b3d729f0f80fdd5aef923913a25d58aa4b8c Mon Sep 17 00:00:00 2001
From: Stripe OpenAPI <105521251+stripe-openapi[bot]@users.noreply.github.com>
Date: Tue, 15 Jul 2025 16:35:08 +0000
Subject: [PATCH] Update generated code for v1845 and 2025-06-30.preview

---
 OPENAPI_VERSION                               |   2 +-
 lib/stripe/resources/invoice.rb               |  16 +++
 lib/stripe/resources/subscription_schedule.rb |  32 ++++++
 lib/stripe/services/invoice_service.rb        |  16 +++
 .../services/subscription_schedule_service.rb |  32 ++++++
 rbi/stripe.rbi                                | 104 +++++++++++++++++-
 rbi/stripe/resources/invoice.rbi              |  18 ++-
 .../resources/subscription_schedule.rbi       |  32 +++++-
 rbi/stripe/services/invoice_service.rbi       |  18 ++-
 .../subscription_schedule_service.rbi         |  36 +++++-
 10 files changed, 293 insertions(+), 13 deletions(-)

diff --git a/OPENAPI_VERSION b/OPENAPI_VERSION
index 115dcc37..4950dbf7 100644
--- a/OPENAPI_VERSION
+++ b/OPENAPI_VERSION
@@ -1 +1 @@
-v1843
\ No newline at end of file
+v1845
\ No newline at end of file
diff --git a/lib/stripe/resources/invoice.rb b/lib/stripe/resources/invoice.rb
index 384f581a..5bfcc5f8 100644
--- a/lib/stripe/resources/invoice.rb
+++ b/lib/stripe/resources/invoice.rb
@@ -3597,6 +3597,18 @@ module Stripe
             end
           end
 
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            attr_accessor :interval_count
+
+            def initialize(interval: nil, interval_count: nil)
+              @interval = interval
+              @interval_count = interval_count
+            end
+          end
+
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -3830,6 +3842,8 @@ module Stripe
           attr_accessor :description
           # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           attr_accessor :end_date
           # All invoices will be billed using the specified settings.
@@ -3871,6 +3885,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
@@ -3897,6 +3912,7 @@ module Stripe
             @default_tax_rates = default_tax_rates
             @description = description
             @discounts = discounts
+            @duration = duration
             @end_date = end_date
             @invoice_settings = invoice_settings
             @items = items
diff --git a/lib/stripe/resources/subscription_schedule.rb b/lib/stripe/resources/subscription_schedule.rb
index 41c04996..25d935eb 100644
--- a/lib/stripe/resources/subscription_schedule.rb
+++ b/lib/stripe/resources/subscription_schedule.rb
@@ -738,6 +738,18 @@ module Stripe
           end
         end
 
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          attr_accessor :interval_count
+
+          def initialize(interval: nil, interval_count: nil)
+            @interval = interval
+            @interval_count = interval_count
+          end
+        end
+
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -971,6 +983,8 @@ module Stripe
         attr_accessor :description
         # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         attr_accessor :end_date
         # All invoices will be billed using the specified settings.
@@ -1010,6 +1024,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -1035,6 +1050,7 @@ module Stripe
           @default_tax_rates = default_tax_rates
           @description = description
           @discounts = discounts
+          @duration = duration
           @end_date = end_date
           @invoice_settings = invoice_settings
           @items = items
@@ -1405,6 +1421,18 @@ module Stripe
           end
         end
 
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          attr_accessor :interval_count
+
+          def initialize(interval: nil, interval_count: nil)
+            @interval = interval
+            @interval_count = interval_count
+          end
+        end
+
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -1638,6 +1666,8 @@ module Stripe
         attr_accessor :description
         # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         attr_accessor :end_date
         # All invoices will be billed using the specified settings.
@@ -1679,6 +1709,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -1705,6 +1736,7 @@ module Stripe
           @default_tax_rates = default_tax_rates
           @description = description
           @discounts = discounts
+          @duration = duration
           @end_date = end_date
           @invoice_settings = invoice_settings
           @items = items
diff --git a/lib/stripe/services/invoice_service.rb b/lib/stripe/services/invoice_service.rb
index 32001a03..fd289449 100644
--- a/lib/stripe/services/invoice_service.rb
+++ b/lib/stripe/services/invoice_service.rb
@@ -3103,6 +3103,18 @@ module Stripe
             end
           end
 
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            attr_accessor :interval_count
+
+            def initialize(interval: nil, interval_count: nil)
+              @interval = interval
+              @interval_count = interval_count
+            end
+          end
+
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -3336,6 +3348,8 @@ module Stripe
           attr_accessor :description
           # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           attr_accessor :end_date
           # All invoices will be billed using the specified settings.
@@ -3377,6 +3391,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
@@ -3403,6 +3418,7 @@ module Stripe
             @default_tax_rates = default_tax_rates
             @description = description
             @discounts = discounts
+            @duration = duration
             @end_date = end_date
             @invoice_settings = invoice_settings
             @items = items
diff --git a/lib/stripe/services/subscription_schedule_service.rb b/lib/stripe/services/subscription_schedule_service.rb
index e29bdc6c..1c98403c 100644
--- a/lib/stripe/services/subscription_schedule_service.rb
+++ b/lib/stripe/services/subscription_schedule_service.rb
@@ -423,6 +423,18 @@ module Stripe
           end
         end
 
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          attr_accessor :interval_count
+
+          def initialize(interval: nil, interval_count: nil)
+            @interval = interval
+            @interval_count = interval_count
+          end
+        end
+
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -656,6 +668,8 @@ module Stripe
         attr_accessor :description
         # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         attr_accessor :end_date
         # All invoices will be billed using the specified settings.
@@ -695,6 +709,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -720,6 +735,7 @@ module Stripe
           @default_tax_rates = default_tax_rates
           @description = description
           @discounts = discounts
+          @duration = duration
           @end_date = end_date
           @invoice_settings = invoice_settings
           @items = items
@@ -1099,6 +1115,18 @@ module Stripe
           end
         end
 
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          attr_accessor :interval_count
+
+          def initialize(interval: nil, interval_count: nil)
+            @interval = interval
+            @interval_count = interval_count
+          end
+        end
+
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -1332,6 +1360,8 @@ module Stripe
         attr_accessor :description
         # The coupons to redeem into discounts for the schedule phase. If not specified, inherits the discount from the subscription's customer. Pass an empty string to avoid inheriting any discounts.
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         attr_accessor :end_date
         # All invoices will be billed using the specified settings.
@@ -1373,6 +1403,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -1399,6 +1430,7 @@ module Stripe
           @default_tax_rates = default_tax_rates
           @description = description
           @discounts = discounts
+          @duration = duration
           @end_date = end_date
           @invoice_settings = invoice_settings
           @items = items
diff --git a/rbi/stripe.rbi b/rbi/stripe.rbi
index 4c599fac..79b55f51 100644
--- a/rbi/stripe.rbi
+++ b/rbi/stripe.rbi
@@ -32609,6 +32609,16 @@ module Stripe
              }
             def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
           end
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            sig { returns(String) }
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            sig { returns(T.nilable(Integer)) }
+            attr_accessor :interval_count
+            sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+            def initialize(interval: nil, interval_count: nil); end
+          end
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -32875,6 +32885,11 @@ module Stripe
             returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))))
            }
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          sig {
+            returns(T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Duration))
+           }
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           sig { returns(T.nilable(T.any(Integer, String))) }
           attr_accessor :end_date
@@ -32928,7 +32943,7 @@ module Stripe
            }
           attr_accessor :trial_settings
           sig {
-            params(add_invoice_items: T.nilable(T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
+            params(add_invoice_items: T.nilable(T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), duration: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
            }
           def initialize(
             add_invoice_items: nil,
@@ -32942,6 +32957,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
@@ -92372,6 +92388,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -92633,6 +92659,9 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig { returns(T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::Duration)) }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(Integer)) }
         attr_accessor :end_date
@@ -92681,7 +92710,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::Duration), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -92695,6 +92724,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -93092,6 +93122,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -93353,6 +93393,9 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig { returns(T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::Duration)) }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(T.any(Integer, String))) }
         attr_accessor :end_date
@@ -93404,7 +93447,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -93418,6 +93461,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -138365,6 +138409,16 @@ module Stripe
              }
             def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
           end
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            sig { returns(String) }
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            sig { returns(T.nilable(Integer)) }
+            attr_accessor :interval_count
+            sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+            def initialize(interval: nil, interval_count: nil); end
+          end
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -138631,6 +138685,11 @@ module Stripe
             returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))))
            }
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          sig {
+            returns(T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Duration))
+           }
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           sig { returns(T.nilable(T.any(Integer, String))) }
           attr_accessor :end_date
@@ -138684,7 +138743,7 @@ module Stripe
            }
           attr_accessor :trial_settings
           sig {
-            params(add_invoice_items: T.nilable(T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
+            params(add_invoice_items: T.nilable(T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), duration: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
            }
           def initialize(
             add_invoice_items: nil,
@@ -138698,6 +138757,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
@@ -178700,6 +178760,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -178961,6 +179031,11 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig {
+          returns(T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::Duration))
+         }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(Integer)) }
         attr_accessor :end_date
@@ -179009,7 +179084,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::Duration), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -179023,6 +179098,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -179431,6 +179507,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -179692,6 +179778,11 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig {
+          returns(T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Duration))
+         }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(T.any(Integer, String))) }
         attr_accessor :end_date
@@ -179743,7 +179834,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -179757,6 +179848,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
diff --git a/rbi/stripe/resources/invoice.rbi b/rbi/stripe/resources/invoice.rbi
index 3aea25f4..46a9a15c 100644
--- a/rbi/stripe/resources/invoice.rbi
+++ b/rbi/stripe/resources/invoice.rbi
@@ -4177,6 +4177,16 @@ module Stripe
              }
             def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
           end
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            sig { returns(String) }
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            sig { returns(T.nilable(Integer)) }
+            attr_accessor :interval_count
+            sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+            def initialize(interval: nil, interval_count: nil); end
+          end
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -4443,6 +4453,11 @@ module Stripe
             returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))))
            }
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          sig {
+            returns(T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Duration))
+           }
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           sig { returns(T.nilable(T.any(Integer, String))) }
           attr_accessor :end_date
@@ -4496,7 +4511,7 @@ module Stripe
            }
           attr_accessor :trial_settings
           sig {
-            params(add_invoice_items: T.nilable(T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
+            params(add_invoice_items: T.nilable(T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), duration: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::Invoice::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
            }
           def initialize(
             add_invoice_items: nil,
@@ -4510,6 +4525,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
diff --git a/rbi/stripe/resources/subscription_schedule.rbi b/rbi/stripe/resources/subscription_schedule.rbi
index 9cbe62fb..158f1e9c 100644
--- a/rbi/stripe/resources/subscription_schedule.rbi
+++ b/rbi/stripe/resources/subscription_schedule.rbi
@@ -926,6 +926,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -1187,6 +1197,9 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig { returns(T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::Duration)) }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(Integer)) }
         attr_accessor :end_date
@@ -1235,7 +1248,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::Duration), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::CreateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -1249,6 +1262,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -1646,6 +1660,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -1907,6 +1931,9 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig { returns(T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::Duration)) }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(T.any(Integer, String))) }
         attr_accessor :end_date
@@ -1958,7 +1985,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionSchedule::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionSchedule::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionSchedule::UpdateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -1972,6 +1999,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
diff --git a/rbi/stripe/services/invoice_service.rbi b/rbi/stripe/services/invoice_service.rbi
index 71eb3a81..7cbcb732 100644
--- a/rbi/stripe/services/invoice_service.rbi
+++ b/rbi/stripe/services/invoice_service.rbi
@@ -3327,6 +3327,16 @@ module Stripe
              }
             def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
           end
+          class Duration < Stripe::RequestParams
+            # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+            sig { returns(String) }
+            attr_accessor :interval
+            # The multiplier applied to the interval.
+            sig { returns(T.nilable(Integer)) }
+            attr_accessor :interval_count
+            sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+            def initialize(interval: nil, interval_count: nil); end
+          end
           class InvoiceSettings < Stripe::RequestParams
             class Issuer < Stripe::RequestParams
               # The connected account being referenced when `type` is `account`.
@@ -3593,6 +3603,11 @@ module Stripe
             returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))))
            }
           attr_accessor :discounts
+          # The number of intervals the phase should last. If set, `end_date` must not be set.
+          sig {
+            returns(T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Duration))
+           }
+          attr_accessor :duration
           # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
           sig { returns(T.nilable(T.any(Integer, String))) }
           attr_accessor :end_date
@@ -3646,7 +3661,7 @@ module Stripe
            }
           attr_accessor :trial_settings
           sig {
-            params(add_invoice_items: T.nilable(T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
+            params(add_invoice_items: T.nilable(T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Discount]))), duration: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::InvoiceSettings), items: T::Array[::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::InvoiceService::CreatePreviewParams::ScheduleDetails::Phase::TrialSettings)).void
            }
           def initialize(
             add_invoice_items: nil,
@@ -3660,6 +3675,7 @@ module Stripe
             default_tax_rates: nil,
             description: nil,
             discounts: nil,
+            duration: nil,
             end_date: nil,
             invoice_settings: nil,
             items: nil,
diff --git a/rbi/stripe/services/subscription_schedule_service.rbi b/rbi/stripe/services/subscription_schedule_service.rbi
index 567e8610..2bb2e394 100644
--- a/rbi/stripe/services/subscription_schedule_service.rbi
+++ b/rbi/stripe/services/subscription_schedule_service.rbi
@@ -460,6 +460,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -721,6 +731,11 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig {
+          returns(T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::Duration))
+         }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(Integer)) }
         attr_accessor :end_date
@@ -769,7 +784,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::CreateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::Duration), end_date: T.nilable(Integer), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::CreateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(Integer), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::CreateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -783,6 +798,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,
@@ -1191,6 +1207,16 @@ module Stripe
            }
           def initialize(coupon: nil, discount: nil, discount_end: nil, promotion_code: nil); end
         end
+        class Duration < Stripe::RequestParams
+          # Specifies phase duration. Either `day`, `week`, `month` or `year`.
+          sig { returns(String) }
+          attr_accessor :interval
+          # The multiplier applied to the interval.
+          sig { returns(T.nilable(Integer)) }
+          attr_accessor :interval_count
+          sig { params(interval: String, interval_count: T.nilable(Integer)).void }
+          def initialize(interval: nil, interval_count: nil); end
+        end
         class InvoiceSettings < Stripe::RequestParams
           class Issuer < Stripe::RequestParams
             # The connected account being referenced when `type` is `account`.
@@ -1452,6 +1478,11 @@ module Stripe
           returns(T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))))
          }
         attr_accessor :discounts
+        # The number of intervals the phase should last. If set, `end_date` must not be set.
+        sig {
+          returns(T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Duration))
+         }
+        attr_accessor :duration
         # The date at which this phase of the subscription schedule ends. If set, `iterations` must not be set.
         sig { returns(T.nilable(T.any(Integer, String))) }
         attr_accessor :end_date
@@ -1503,7 +1534,7 @@ module Stripe
          }
         attr_accessor :trial_settings
         sig {
-          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TrialSettings)).void
+          params(add_invoice_items: T.nilable(T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AddInvoiceItem]), application_fee_percent: T.nilable(Float), automatic_tax: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::AutomaticTax), billing_cycle_anchor: T.nilable(String), billing_thresholds: T.nilable(T.nilable(T.any(String, ::Stripe::SubscriptionScheduleService::UpdateParams::Phase::BillingThresholds))), collection_method: T.nilable(String), currency: T.nilable(String), default_payment_method: T.nilable(String), default_tax_rates: T.nilable(T.nilable(T.any(String, T::Array[String]))), description: T.nilable(T.nilable(String)), discounts: T.nilable(T.nilable(T.any(String, T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Discount]))), duration: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Duration), end_date: T.nilable(T.any(Integer, String)), invoice_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::InvoiceSettings), items: T::Array[::Stripe::SubscriptionScheduleService::UpdateParams::Phase::Item], iterations: T.nilable(Integer), metadata: T.nilable(T::Hash[String, String]), on_behalf_of: T.nilable(String), pause_collection: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::PauseCollection), proration_behavior: T.nilable(String), start_date: T.nilable(T.any(Integer, String)), transfer_data: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TransferData), trial: T.nilable(T::Boolean), trial_continuation: T.nilable(String), trial_end: T.nilable(T.any(Integer, String)), trial_settings: T.nilable(::Stripe::SubscriptionScheduleService::UpdateParams::Phase::TrialSettings)).void
          }
         def initialize(
           add_invoice_items: nil,
@@ -1517,6 +1548,7 @@ module Stripe
           default_tax_rates: nil,
           description: nil,
           discounts: nil,
+          duration: nil,
           end_date: nil,
           invoice_settings: nil,
           items: nil,