Apr 8, 2021:

104.16.0.0/12 removed from ips-v4
104.16.0.0/13 added to ips-v4
104.24.0.0/14 added to ips-v4

Oct 1, 2020:

IPS were confirmed, no changes

Jun 7, 2017:

199.27.128.0/21 removed from ips-v4