Contact Form 7 5.5.4

Contact Form 7 5.5.4 is now available. Improvement for integration modules is ongoing. In this release, double opt-in has been introduced in the Sendinblue and Constant Contact integration modules.

Double opt-in support

Double opt-in is a procedure used to confirm user’s consent that is required for privacy reasons. In 5.5.4, the Sendinblue and Constant Contact modules have become able to support double opt-in with help from the Double Opt-In Helper plugin.

Requires: WordPress 5.7 or higher
Tested up to: WordPress 5.9-RC3

» Download Contact Form 7 plugin from

Major changes

  • Double opt-in support in the Sendinblue and Constant Contact integration modules.
  • New action hook: wpcf7_doi
  • New filter hook: wpcf7_do_doi
  • New filter hook: wpcf7_sendinblue_doi_optin_callback
  • New filter hook: wpcf7_sendinblue_doi_email_callback
  • New filter hook: wpcf7_constant_contact_doi_optin_callback
  • New filter hook: wpcf7_constant_contact_doi_email_callback
  • Fixed: Default contact form was not properly saved in the contact form selector block.

You can browse the full list of changes on GitHub.