https://www.pcgamer.com/heres-what-treyarch-learned-about-the-call-of-duty-black-ops-4-beta-test/

Treyarch has outlined some of the lessons it learned from the Call of Duty: Black Ops 4 beta, and detailed the changes it'll make ahead of the next beta trial scheduled for September 10 on PlayStation 4.

Summarising the recap in a Reddit thread, Treyarch said that while it wouldn't "go into detail on every fix or tuning change [they]'re making", it would comment upon "the most-discussed topics that also intersect with the game’s design intent".