System Security Configuration Guide for Cisco 8000 Series Routers, IOS XR Release 26.1.x, 26.2.x

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Updated:: June 9, 2026

Chapter: New and Changed Feature Information

New and Changed Feature Information
System Security Features Added or Modified in IOS XR Release 26.x.x

New and Changed Feature Information

This chapter lists all the features that have been added or modified in this guide. The table also contains references to these feature documentation sections.

System Security Features Added or Modified in IOS XR Release 26.x.x


Feature	Description	Changed in Release	Where Documented
FIDO2 authentication for SSH	This feature was introduced.	Release 26.2.1	FIDO2 authentication for SSH
ECC P-256 integration	This feature was introduced.	Release 26.2.1	ECC P256-based Secure Unique Device Identifiers
802.1X port-based authentication	This feature was enhanced.	Release 26.1.1	802.1X port-based authentication
SSH key strength: 3072 bits by default	This feature was introduced.	Release 26.1.1	Automatic generation of SSH host-key pairs

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