What's the current way to update the Zwave database to the latest version?

I just now received approval notice for a database edit. I’m excited to set up my new device but I’m not sure how to update the device database on my local openHAB instance.

I found this rather heated discussion from a year and a half ago, and I’m wondering if it’s still the case that the device database is built in to the binding? If so, how soon can I expect that build to reflect my approved change, and how would I go about installing the snapshot build?

Yes it is.

Usually pretty fast. A new snapshot build is available almost on a daily basis.

Are you on OH 2.3 Stable on Linux at the moment?

If yes, follow the instructions on https://www.openhab.org/docs/installation/linux.html#installation (Snapshot section)