With the rebranding from vRealize to Aria, vRealize Network Insight (vRNI) has become Aria Operations for Networks. I met some of the Product Team at VMware Explore 2022, and they are trying out the ArON acronym; I always preferred “Network Insight” as the most descriptive.
There is also a new release (though all the docs still use the old naming): https://docs.vmware.com/en/VMware-vRealize-Network-Insight/6.8/rn/vmware-vrealize-network-insight-68-release-notes/index.html
The most obvious change is the new Home page you start on upon login. One neat feature is the heat map view of issues, you can click on the tiles to jump to the objects.
It will take a bit to get used to the navigation changes, but overall I expect Network Insight to remain an important tool in our troubleshooting and microsegmentation toolkit.