Changelog: Changes

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.

• February 17, 2026
  Next-Gen WAF agentChanges

  Next-Gen WAF agent 4.75.0

• February 5, 2026
  Next-Gen WAF for Node.jsChanges

  Next-Gen WAF for Node.js 2.4.1

• January 30, 2026
  Next-Gen WAF for GoChanges

  Next-Gen WAF for Go 1.14.1

• January 30, 2026
  Next-Gen WAF for Node.jsChanges

  Next-Gen WAF for Node.js 2.4.0

• January 22, 2026
  Next-Gen WAF for JavaChanges

  Next-Gen WAF for Java 2.8.3

• January 15, 2026
  Next-Gen WAF agentChanges

  Next-Gen WAF agent 4.74.0

• January 7, 2026
  APIChanges

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

• December 16, 2025
  Next-Gen WAF agentChanges

  Next-Gen WAF agent 4.73.0

• November 20, 2025
  Next-Gen WAF agentChanges

  Next-Gen WAF agent 4.72.0

• November 6, 2025
  APIChanges

  Add mode parameter for DDoS Protection enablement