Gravity Forms Eway v2.6.0 has just been released. This release fixes PHP notice in PHP 8.1+; requires PHP 7.4 or later.

PHP 7.4+

This version now requires PHP 7.4 or later. The plugin has had a code refresh with some features now requiring more modern PHP. The recommended version is PHP 8.2 or later.

PHP notice fixed

Single transactions using the Rapid API were logging a PHP notice with a deprecation warning. This didn’t affect transactions, and has now been resolved.

You can update to the latest version from your WordPress plugin admin page. Here’s the full changelog for Gravity Forms Eway.