Depends on version running, i am sure Cat 9500 come with 16.12 or above. so that is smart License, you need to buy smart License for network advantage and associated with the device.
you do not need to change the device or switch.
you can activate license reservation works for 90-days, but required to reload.
license boot level network-advantage addon dna-advantage
Smart Licensing Using Policy (SLUP): Enhanced version of Smart Licensing, with the overarching objective of providing a licensing solution that does not interrupt the operations of your network, rather, one that enables a compliance relationship to account for the hardware and software licenses you purchase and use.
ordering guide :
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9500-series-switches/nb-06-cat9500-swit-ser-cte-en.html#OrderingInformation
