Improving Smart Tiered Cache for Public Cloud Regions

What this post added

Introduced 'Smart Tiered Cache for Public Cloud Regions' which allows users to provide a cloud region hint for origins behind anycast or regional unicast networks. This feature maps public cloud origins to the correct region and selects better primary and fallback upper tiers, improving cache efficiency and reducing latency. It works by fetching IP range files from supported cloud providers (AWS, GCP, Azure, Oracle Cloud) and matching them against latency probing data to determine the optimal upper tier. The feature is configurable via the dashboard, API, and Terraform.