---
title: Next-Gen WAF for IIS 1.7.3
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2018/11/ngwaf-module-iis-1.7.3
---

- Fixed race condition
- Improved logging
- Added config options `agentHost`, `MaxPostSize`, `AnomalySize` and `AnomalyDurationMillis`
- Default RPC version changed and set to RPCv0