Release 5.0.0

Added

• WhatsApp consent collection at checkout via a new unified Mobile consent
  group. Merchants choose to collect consent for SMS, WhatsApp, or both, and a
  single mobile checkbox at checkout drives per-channel subscriptions in Klaviyo.

Changed

• Replaced the SMS consent admin group with a unified Mobile group. Existing SMS
  settings are migrated to the new paths on upgrade; custom label and disclosure
  copy is preserved.
• Consent submission at order placement now uses the V3
  /api/profile-subscription-bulk-create-jobs/ endpoint instead of the legacy
  custom webhook.
• Phone numbers collected at checkout are now normalized to E.164 before being
  sent to Klaviyo.

Removed

• Support for PHP versions below 8.1. The plugin now requires PHP 8.1 or later,
  aligning with Magento 2.4.5+. Merchants on PHP 7.x must upgrade their PHP
  runtime before installing this release.