What is current version of Q&A Pro?

What is current version of Q&A Pro and which one is correct?

this is codecanyon details?change log version is 1.3.2,?Last Update: 21 October 21

https://codecanyon.net/item/dw-question-answer-pro-wordpress-plugin/15057949

this is design wall details Version: 1.2.7 Latest Updated: 22 April 21

https://www.designwall.com/wordpress-question-and-answer-plugin/

this worpress free verison detail?Version:1.5.7?Last updated: 2 years ago

above the details was confused to me. i like to buy your plugin but the version pro is less-then to free version why??