Here is everything you need to know about why this specific version remains a "top download" and what you should consider before using it. Why Version 6.77 is Highly Sought After

: Version 6.77 stored its upload limit in a simple text configuration file ( constants.php ). By changing a single line of code, users could manually increase the 512MB limit to 32GB or more.

The primary reason users look for version 6.77 is its flexibility regarding and features that were later moved behind a paywall.