Following a high latency incident in mid-April, the subsequent IP addresses have been deployed to production. These addresses were previously communicated in an earlier announcement indicating their scheduled deployment within this year. Normally there would be an additional notification prior to activation; however, this did not occur. For users employing a database as their data source, it is strongly advised to ensure these addresses are incorporated into your firewall allowlist (Manage Ip Addresses and firewall information), particularly if intermittent connection failures have been observed. The additional addresses are on the Manage Ip Addresses page and are explicitly called out here as well:
US-West1
35.199.162.121
34.83.133.82
US-East4
34.86.235.230
35.221.38.52
Us-Central1
104.154.218.192
34.31.98.215
Europe-West4
34.90.249.137
35.204.85.7
Thanks for the update, Joshua.