v1.97.6 (2026年5月7日)

// Reading the captured feedback
const subscription = await client.subscriptions.retrieve('sub_123');
console.log(subscription.cancellation_feedback); // e.g., "too_expensive"
console.log(subscription.cancellation_comment);  // e.g., "Switching to a competitor"

// Per-subscription override
const subscription = await client.subscriptions.create({
  product_id: 'prod_inr_monthly',
  customer: { email: 'customer@example.in' },
  billing: { country: 'IN' /* ... */ },
  mandate_min_amount_inr_paise: 2_000_000 // ₹20,000 ceiling for this subscription
});

// Or via a checkout session
const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'prod_inr_monthly', quantity: 1 }],
  mandate_min_amount_inr_paise: 2_000_000,
  return_url: 'https://yoursite.com/return'
});

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'prod_abc', quantity: 1 }],
  adaptive_currency_fees_inclusive: true, // override business default
  return_url: 'https://yoursite.com/return'
});

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'prod_123', quantity: 1 }],
  allowed_payment_method_types: ['crypto', 'credit', 'debit'],
  return_url: 'https://example.com/success'
});

const licenseKey = await client.licenseKeys.create({
  customer_id: 'cus_abc123',
  product_id: 'prod_456',
  key: 'YOUR-EXISTING-LICENSE-KEY',
  activations_limit: 5,
  expires_at: '2026-12-31T23:59:59Z',
});

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'prod_abc', quantity: 1 }],
  feature_flags: {
    allow_phone_number_collection: true,
    require_phone_number: true
  },
  return_url: 'https://yoursite.com/return'
});