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Product GuidesEnforcer GuidesMobile SDKAPI Reference
Product GuidesEnforcer GuidesMobile SDKAPI Reference
  • General Enforcer information
    • Supported Frameworks
    • Hostnames Used by Enforcers
    • HUMAN Enforcer SDK
    • Integration Flow
    • Supporting First Party HUMAN calls on a CDN
    • Supporting GraphQL API Calls
    • API IPs
    • Troubleshoot your Enforcer configuration
  • Enforcer frameworks
    • Akamai ESI
    • Apache - C Module
    • ASP.NET
    • Callout Enforcer
    • Cloudflare Worker
    • Envoy Proxy
    • F5 BIGIP
    • Fastly JavaScript Compute@Edge
    • Fastly Rust Compute@Edge
    • Google Cloud Platform (GCP) Callout Enforcer
    • HAProxy Enforcer
    • Java
    • Kong Plugin
    • NGINX - C Module
    • NGINX - LUA Module
    • PHP
    • Python
    • Ruby
    • Salesforce Commerce Cloud Cartridge
    • Varnish Enforcer
Enforcer frameworksFastly VCL

Fastly VCL changelog

December 10, 2025
December 10, 2025

Version 12.4.0

  • Added Header Based Logger support
  • Added Telemetry by Risk support
  • Correct enforcer_start_time and risk_start_time on all enforcer activities
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