Is PHP 5.5 really the minimum required version?

[kozie]

I couldn't find any further information about the version requirements so i'm gonna ask it over here.

The ZenDesk documentation page mentions that the module/plugin requires PHP v5.5+. We are running 5.4 and haven't seen any problem yet, so far.
Am i going to get those later when some piece of code is executed which really needs PHP 5.5?

My guess is that development for this module has been on 5.5 and older versions hasn't been tested. For the sake of ease, version 5.5+ was mentioned.

Thanks in advance