Cisco Catalyst 9400 System Management Configuration Manual page 382

Feature History for Software Maintenance Upgrade
Release
Cisco IOS XE Everest 16.6.3
Cisco IOS XE Fuji 16.9.1
Cisco IOS XE Gibraltar
16.10.1
Use Cisco Feature Navigator to find information about platform and software image support. To access Cisco
Feature Navigator, go to http://www.cisco.com/go/cfn.
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
364
Feature Feature Information
Software Maintenance An SMU is a package that can be installed on a
Upgrade (SMU) system to provide a fix or a security resolution to
a released image.
Hot patching Hot patching enables SMU to take effect after
activation without the system having to be reloaded.
Public Key The SMU package supports patching of the PKI
Infrastructure (PKI) component.
Patching
Software Maintenance Upgrade