# double-opt-in/5.6.0/compatibility

Double Opt-In for Contact Form 7 – Secure, GDPR-Compliant Email Verification, version 5.6.0. 2 entries.

- Page: https://pluginprobe.com/plugins/double-opt-in/5.6.0/code/compatibility
- Release archive: https://downloads.wordpress.org/plugin/double-opt-in.5.6.0.zip

- dir  [cf7](https://pluginprobe.com/plugins/double-opt-in/5.6.0/code/compatibility/cf7)
- file [OptInFrontend.class.php](https://pluginprobe.com/plugins/double-opt-in/5.6.0/code/compatibility/OptInFrontend.class.php)

Append `?format=md` to any of these, or send `Accept: text/markdown`, to read them as
Markdown. Add `/raw/` in place of `/code/` for the file with no wrapper at all.