Excluding merges, 43 authors have pushed 818 commits to github. This puts EOSIO in the top 8 most active c++ projects on github in the past month. As you can see a lot is happening.

Now is now Now
New Market-Based RAM Allocation Model
Rise of Inter-Blockchain-Communication
Upgrade DPOS Last Irreversible Block Algorithm
Name Squatting
Header-only Validation
Light Weight Producer Schedule Change Proofs
Refined Producer Pay Model
Producer Vote Decay
Exchange Integration Support