We have found there is very little difference in the end result (media sales) with one's PHP version. With the advent of software being released once every 3 days, we tend to be distracted with the idea that there is some newer greater feature with every subsequent version, wheereas the focus should be on the basics: self-promotion, mutual promotion, new creative ideas, and of course, photography.

That's why with Symbiostock we do so few releases as we only do it when it is necessary - but when we do, we ensure it is highly stable so that in production environments you can feel safe and secure knowing you're running on our platform.
Changelog is visible when you download it, but overall they are minor tweaks here and there, and a lot of fixes to work with the new WooCommerce 4.0.0. Generally, the base plugin is quite thorough and robust, and a lot of expanded functionality is added through the optional plugins.
Thanks!