- Show the coupon's QR code in the coupon delivery email as a PNG image. Requires Coupon Creator Pro 3.7.0.
- Apply coupon access and expiration checks before reveal and email actions.
- Preserve dynamic codes assigned to email access tokens and reject copied tokens for a different coupon.
- Keep email send limits separate from optional email logs.
- Trust forwarded IP addresses only from configured proxies and count failed send attempts.
- Fix WooCommerce permissions, current email settings, and MultiPrint paths on subdirectory sites.
- Add regression tests and a CI test runner.