the answer is in mbed newsletter , posted some moments ago by Dan Ros
Site update
Since then, we've released an update, covering several minor bugfixes and improvements. One thing you will notice however is a shiny new /code/ page. We have put in a number of features designed to try and help you discover more interesting programs and libraries.
Popular
We now show you how many views (and soon imports) a wikipage or repository has. This is for two reasons: One, to show you what other people think is interesting, and two, to show you how interested people are in your project!
Most active
Rather than only showing you repositories in order of last modification time, we now show you repositories in order of "most active, most recently". This means that for example, a repository with 10 commits in the past week will be ranked higher than a repository with 2 commits today.
Featured
We also now have the ability to feature projects which are particularly interesting or good examples to follow. If you know of a program or library which more people should know about, let us know in the forum!
Hi
I noticed the new way of code listing . Have I missed any more details announcing this ? How is popular , active , featured calculated ?
ie popular = more views , more downloads ?
Regards Christos