How to know which version Zend framework used to build website

My name is Dineshkumar BH from India. I have outsourced build website " The developer no more available. Still some work is pending and need to update it. When he was developing he told me he used send framework. But when I given for further development other’s developer’s telling it’s built on Zend framework. When i crosschecked no where showing framework details. Please help how recognize

Please help how recognize

You can ask other developers to send you a version.

Or you can execute command “composer show -i” to see packages and package’s versions.