# Adds helpers to cancel subscriptions for billing periods with mixed intervals ## What’s new We introduced the following [cancel_at](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil#create_subscription-cancel_at) enum values to simplify canceling a [mixed interval](https://docs.stripe.com/billing/subscriptions/mixed-interval.md) subscription at the end of a billing period: - `min_period_end`: Schedules cancelation of the subscription at the earliest `items.data.current_period_end` across all subscription items. - `max_period_end`: Schedules cancelation of the subscription at the latest `items.data.current_period_end` across all subscription items. In requests that change both the `current_period_end` of a Subscription item and set one of these new values, the updated `current_period_end` is taken as the respective cancellation date. Unlike [cancel_at_period_end](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil#create_subscription-cancel_at_period_end), these values resolve to timestamps immediately and further changes to `items.data.current_period_end` don’t affect them. > For mixed interval subscriptions the existing [cancel_at_period_end](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil#create_subscription-cancel_at_period_end) feature always resolves to the earliest item period end. ## Impact The following API endpoints support the new enums: - [Create a subscription](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil) - [Update a subscription](https://docs.stripe.com/api/subscriptions/update.md?api-version=2025-07-30.basil) - [Create an invoice preview](https://docs.stripe.com/api/invoices/create_preview.md?api-version=2025-07-30.basil) If your flexible billing mode integration currently uses [cancel_at_period_end](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil#create_subscription-cancel_at_period_end) to cancel subscriptions, update your integration to either: - Use the new `min_period_end` or `max_period_end` enum values to specify which interval triggers cancelation. - Populate [cancel_at](https://docs.stripe.com/api/subscriptions/create.md?api-version=2025-07-30.basil#create_subscription-cancel_at) with an explicit integer timestamp. The `cancel_at_period_end` parameter on a Subscription isn’t compatible with the new `cancel_at` helpers. If you update the `current_period_end` value for items in a subscription, you can add `cancel_at: min_period_end` or `cancel_at: max_period_end` in the same request to reset the subscription’s existing [cancel_at](https://docs.stripe.com/api/subscriptions/object.md?api-version=2025-07-30.basil#subscription_object-cancel_at) timestamp. > This change won’t be available in the .NET SDK until version `49.0.0` and the Java SDK until version `30.0.0`. Until those versions are available, follow the instructions to [send undocumented parameters](https://docs.stripe.com/sdks/server-side.md#undocumented-params-and-fields) to pass the new enum values to the `cancel_at` parameter. ## Changes #### REST API | Fields | Change | From → to | | ------------------------------------------------------------------------------------------------------------------------- | ------- | --------------------------------------------------------------- | | `Invoice#create_preview.subscription_details.cancel_at`, `Subscription#create.cancel_at`, `Subscription#update.cancel_at` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### Ruby | Fields | Change | From → to | | -------------------------------------------------------------------------------------------------------------------------------------------- | ------- | --------------------------------------------------------------- | | `Invoice::CreatePreviewParams::SubscriptionDetail.cancel_at`, `Subscription::CreateParams.cancel_at`, `Subscription::UpdateParams.cancel_at` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### Python | Fields | Change | From → to | | --------------------------------------------------------------------------------------------------------------------------------------- | ------- | --------------------------------------------------------------- | | `Invoice.CreatePreviewParamsSubscriptionDetail.cancel_at`, `Subscription.CreateParams.cancel_at`, `Subscription.ModifyParams.cancel_at` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### PHP This change does not affect the PHP SDK. #### Java | Fields | Change | From → to | | ------------------------------------------------------------------------------------------------------------------------------------ | ------- | --------------------------------------------------------------- | | `InvoiceCreatePreviewParams.subscription_details.cancelAt`, `SubscriptionCreateParams.cancelAt`, `SubscriptionUpdateParams.cancelAt` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### Node.js | Fields | Change | From → to | | --------------------------------------------------------------------------------------------------------------------------------------- | ------- | --------------------------------------------------------------- | | `InvoiceCreatePreviewParams.subscription_details.cancel_at`, `SubscriptionCreateParams.cancel_at`, `SubscriptionUpdateParams.cancel_at` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### Go | Fields | Change | From → to | | --------------------------------------------------------------------------------------- | ------- | --------------------------------------------------------------- | | `InvoiceCreatePreviewSubscriptionDetailsParams.CancelAt`, `SubscriptionParams.CancelAt` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | #### .NET | Fields | Change | From → to | | ------------------------------------------------------------------------------------------------------------------------ | ------- | --------------------------------------------------------------- | | `InvoiceSubscriptionDetailsOptions.CancelAt`, `SubscriptionCreateOptions.CancelAt`, `SubscriptionUpdateOptions.CancelAt` | Changed | `DateTime → DateTime | enum('max_period_end'|'min_period_end')` | ## Upgrade #### REST API 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. If you use an SDK, upgrade to the corresponding SDK version for this API version. - If you don’t use an SDK, update your [API requests](https://docs.stripe.com/api/versioning.md) to include `Stripe-Version: 2025-07-30.basil` 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Ruby 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Ruby SDK to [v15.4.0](https://github.com/stripe/stripe-ruby/releases/tag/v15.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Python 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Python SDK to [v12.4.0](https://github.com/stripe/stripe-python/releases/tag/v12.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### PHP 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your PHP SDK to [v17.5.0](https://github.com/stripe/stripe-php/releases/tag/v17.5.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Java 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Java SDK to [v29.4.0](https://github.com/stripe/stripe-java/releases/tag/v29.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Node.js 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Node SDK to [v18.4.0](https://github.com/stripe/stripe-node/releases/tag/v18.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### Go 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your Go SDK to [v82.4.0](https://github.com/stripe/stripe-go/releases/tag/v82.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). #### .NET 1. [View your current API version](https://docs.stripe.com/upgrades.md#view-your-api-version-and-the-latest-available-upgrade-in-workbench) in Workbench. 1. Upgrade your .NET SDK to [v48.4.0](https://github.com/stripe/stripe-dotnet/releases/tag/v48.4.0) 1. Upgrade the API version used for [webhook endpoints](https://docs.stripe.com/webhooks/versioning.md). 1. [Test your integration](https://docs.stripe.com/testing.md) against the new version. 1. If you use Connect, [test your Connect integration](https://docs.stripe.com/connect/testing.md). 1. In Workbench, [perform the upgrade](https://docs.stripe.com/upgrades.md#perform-the-upgrade). You can [roll back the version](https://docs.stripe.com/upgrades.md#roll-back-your-api-version) for 72 hours. Learn more about [Stripe API upgrades](https://docs.stripe.com/upgrades.md). ## Related changes - [Adds a duration parameter for schedule phases](https://docs.stripe.com/changelog/basil/2025-07-30/add-schedule-phase-duration.md) - [Adds support for quantity adjustment to the Customer Portal Configuration API](https://docs.stripe.com/changelog/basil/2025-07-30/customer-portal-subscription-update-quantity-limits.md) - [Adds support for billing thresholds on flexible billing mode Subscriptions](https://docs.stripe.com/changelog/basil/2025-07-30/billing-thresholds.md) - [Adds support for mixed intervals on the same subscription](https://docs.stripe.com/changelog/basil/2025-07-30/support-mixed-intervals.md)