Preface

This preface describes the objectives and organization of this document and explains how to find additional information on related products and services.

Objectives

This document provides an overview of software functionality for Cisco 8400 Series Secure Routers.

It is not intended as a comprehensive guide to all of the software features that can be run using the Cisco 8400 Series Secure Routers but only the software aspects that are specific to this platform.

For information on general software features that are also available on the Cisco 8400 Series Secure Routers, see the Cisco IOS XE technology guide for that specific software feature.

Document revision history

The Document Revision History records technical changes to this document. The table shows the Cisco IOS XE software release number and document revision number for the change, the date of the change, and a brief summary of the change.

Release No.

Date

Change Summary

Cisco IOS XE 17.15.3

June 30, 2025

Cisco Catalyst C8475-G2 and C8455-G2 routers were introduced.