Search engine land has added three new factors in their periodic table. These new factors are Vertical Search (Cv), Direct answers (Ca) and HTTPS.
Danny has also explained positive changes in factors like Mobile (Am), Structured Data (Hs) and User Engagement (Te).
He has also explained negative changes like Stuffing (Vs), Spam (Vp) and Ads (Va).
You can read more explanation from Search Engine Land’s article.