NGINX App Protect DoS Release 4.3

Here you can find the release information for NGINX App Protect DoS v4.3. NGINX App Protect DoS provides behavioral protection against Denial of Service (DoS) for your web applications.

Release 4.3

December 19, 2023

In this release, NGINX App Protect DoS supports NGINX Plus R31.

New Features

Supported Packages

App Protect DoS

Alpine 3.17
  • app-protect-dos-
CentOS 7.4+ / RHEL 7.4+ / UBI7
  • app-protect-dos-
RHEL 8 and Rocky Linux 8
  • app-protect-dos-
Debian 11
  • app-protect-dos_31.4.3.1-1~bullseye_amd64.deb
Ubuntu 20.04
  • app-protect-dos_31.4.3.1-1~focal_amd64.deb
Ubuntu 22.04
  • app-protect-dos_31.4.3.1-1~jammy_amd64.deb


  • NGINX Plus R31

Important Note

  • Starting with this release, Alpine 3.15 support has been deprecated.

This documentation applies to the following versions of NGINX App Protect DoS: 4.3.