: Starting with IOS XE 17.3.1, Cisco introduced Smart Licensing Using Policy . Ensure your switch is registered with Cisco Smart Software Manager (CSSM) to remain compliant.
In the Cisco Catalyst 9000 family, the "lite" designation (cat9k-lite) refers to the operating system specifically optimized for the models. While the higher-end Catalyst 9300, 9400, and 9500 switches use the standard cat9k image, the 9200 series requires the cat9k-lite version due to differences in hardware architecture and performance profiles. Key Features of IOS XE 17.3.5 cat9k-lite-iosxe.17.03.05.spa.bin download
: Go to the Cisco Download Software page. : Starting with IOS XE 17
: While 17.3 is a stable release, always check the Cisco EOS/EOL notices to ensure your software version is still receiving security updates. : Starting with IOS XE 17.3.1