Is this a download link for the latest version?
As you can see, this is a commercial software. It doesn't have version number listed because the product needs to be bought before it can be downloaded. For the latest version, you can open a support ticket on the Support Section of the main developer's website. You might need to create an account before you can post anything on the website.
No, the latest version is 2.4.3 but that version can be obtained by purchasing the product since it's on a commercial basis and it's available only for the customers who paid for the program.