System Security Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 25.1.x, 25.2.x, 25.3.x, 25.4.x

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Updated:: December 17, 2025

Chapter: New and Changed Feature Information

New and Changed Feature Information
System Security Features Added or Modified in IOS XR Release 25.x.x

New and Changed Feature Information

This table summarizes the new and changed feature information for the System Security Configuration Guide for Cisco NCS 5500 Series Routers, and tells you where they are documented.

System Security Features Added or Modified in IOS XR Release 25.x.x


Feature	Description	Changed in Release	Where Documented
Security template framework for TLS applications	This feature was introduced	Release 25.4.1	Security template framework for TLS applications
TLS RFC 5289 compliance for security template	This feature was introduced	Release 25.4.1	TLS RFC 5289 compliance for security template
Channel timeout for SSH sessions	This feature was introduced	Release 25.3.1	Channel timeout for SSH sessions
Unused connection timeout for SSH sessions	This feature was introduced	Release 25.3.1	Unused connection timeout for SSH sessions

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