Changelog: API

This changelog provides information on changes across the Fastly platform, including to the VCL language, our public API, CLI, the Terraform provider, Terraform provider (beta), Compute Rust SDK, Compute JavaScript SDK, Compute Go SDK, and the Next-Gen WAF.

• March 5, 2026
  APIAdditions

  Add Domain Management filtering by fully-qualified domain name match

• February 24, 2026
  APIAdditions

  Add Compute error metrics to Historical Stats and Real-Time Analytics APIs

• February 20, 2026
  APIAdditions

  Add Image Optimizer format counting metrics

• February 4, 2026
  APIAdditions

  Add Alerts derived rate metrics for Compute responses

• January 27, 2026
  APIAdditions

  Add datacenter parameter to HSAPI

• January 26, 2026
  APIAdditions

  Add backend fetch timeout

• January 26, 2026
  APIAdditions

  Next-Gen WAF: Added top attacks endpoint

• January 14, 2026
  APIAdditions

  Next-Gen WAF: Added trend visualization type for custom dashboards

• January 12, 2026
  APIAdditions

  Manage thresholds for Next-Gen WAF workspaces

• January 7, 2026
  APIChanges

  Compute package `hashsum` and `size` fields are deprecated