Yes, nothing has changed in this area
There are some changes in the product (NAM 2018) that you need to be aware of
* No ADS server as standalone component -> if you had ADS your existing license will now be updated to include ADOD (Advanced Diagnostics on Demand feature) ~ ADS functionality provided by NAM server (aka CAS) and NAM Probe (aka AMD) in 2018 and beyond
* Built in SSO mechanism (log in once, stay logged in while you navigate through components RUM Console -> NAM server and vice versa)
* DLM licensees are now distributed in eServices format, so DLM software is no longer used
Note, if you have 12.4, you can't upgrade straight to NAM 2018, but through mid step - 2017.
See complete upgrade guide in our documentation.
Shall you have more questions regarding upgrade in a specific environment, as always it's best to open a migration ticket and put these questions in context of that specific installation.