### 2.9.14.1
– Fixed a PHP fatal error that can occur in some hosting environments when the form is saved via Ajax in the form editor.
### 2.9.14 | 2025-07-24
– Added the constant [GF_ENABLE_NOTIFICATION_EMAIL_HEADER](https://docs.gravityforms.com/gf_enable_notification_email_header) and filter [gform_notification_email_header](https://docs.gravityforms.com/gform_notification_email_header) to allow enabling and setting of `X-Gravity-Forms-Source` email header.