Php Version Announcement and What It Means for Caldera Forms Users

Recently I answered a support ticket, where a paying customer reported getting deprecated function warnings when using Caldera Forms calculation fields on a site powered by PHP 7.2. PHP 7.2 is the latest version of PHP. The reason we are using the function that is now deprecated by PHP is that, like WordPress core, we support PHP 5.2. As a result, the better solutions that have been added to PHP over the last decade are not available to us. As a company we are unwilling to prioritize free users, who have dangerously out of date servers, over customers and free users, with properly set up servers. As a result, we are moving to aggressively drop support for out of date PHP versions. Based on the statistics provided by WordPress.org to us, this will affect approximately 20% of our users.
Caldera Forms 1.6 will deprecate support for PHP versions that are not supported by the PHP project — 5.5 and below. Caldera Forms 1.7 will not work unless your site is using PHP 5.6 or later.
Caldera Forms Pro has always required PHP 5.6 or later. I want to be fully transparent, that this decision is as much motivated by our desire to write better code as it is to prioritize paying customers. I
Source: https://managewp.org/articles/17273/php-version-announcement-and-what-it-means-for-caldera-forms-users

source https://williechiu40.wordpress.com/2018/03/23/php-version-announcement-and-what-it-means-for-caldera-forms-users/