How does the App Store handle consent and renewals for subscription price increases?

For subscription price increases, the App Store may require either a notice to subscribers or explicit user consent, depending on factors such as the size of the increase and local compliance requirements.
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Subscribers on introductory offers, promotional pricing, or free trials will renew for at least one additional billing period at the price shown at sign-up, ensuring proper advance notice.
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If a subscriber does not consent to the new price before the renewal, the subscription will expire at the end of the last billing cycle at the original price.