Gravity Forms 2.8.9

- API: Fixed PHP warning during form submission if an invalid entry id is returned by the gform_entry_id_pre_save_lead filter.
- API: Fixed an issue where existing values for registered entry meta could be lost when using the gform_entry_id_pre_save_lead filter to update an entry during form submission.
- API: Added GFAPI::entry_exists() to check if an entry exists for the supplied ID.
- Removed "Not Checked" rule for the consent field in conditional logic JS.
- Fixed issue where conditionally hidden Drop Down fields were evaluated as having a value via conditional logic.
- Added security enhancements.
- Updated link in disable logging notice to immediately disable logging.

- Fixed an issue where use of some special characters, such as quotes, in the List field column label could prevent submission of the input value.
- Fixed an issue with the Rich Text Editor height when the Paragraph or Post Body field is displayed by conditional logic.

- Fixed some properties not being reset when the Product field input type is changed causing issues for the front-end calculations and conditional logic.
- Added the gform_field_validation to the Repeater field.
- API: Fixed returning repeater subfields via GFAPI::get_field()