Over the last few years, we are continuously updating our software with new features and enhancements. However, the major blocker in this process is the backward compatibility. We always encouraged our users to move on to the latest version of software on their servers, however, due to many other reasons they are still unable to upgrade their environments. With over 8 years of software development of Joomla! extensions, we supported thousands of our users who are still using outdated and unsupported versions. This requires a significant amount of effort in keeping compatibility layers to support older versions of the software.
However, things need to be changed over time, official support for PHP versions are now limited to one branch (PHP 5.6) and others are no longer supported by PHP team. So we need to look forward the future and end our legacy code to support new features.
We would like to announce that we will be supporting only PHP 5.5 and above versions going forward. We urge all our users to upgrade PHP 7 or later versions as soon as possible which is not only faster but also safer PHP ever.
Note: Joomla project will no longer support PHP 5 from Joomla 4 onwards (read it here: https://developer.joomla.org/news/704-looking-forward-with-joomla-4.html)