opie(4) is no longer an option in several places in DragonFly.   It's also known as S/Key, and I'd be mildly surprised if you've used it.
Remember the commit that autocreates human-readable disk device names under /dev?  (Here's a reminder.)  It's now in 5.4 - technically, since 5.4.2.  Anyway, it will automatically identify the root USB disk when you boot from a USB .img file, so you no longer have to guess which /dev/daX file it was - usually da8 but sometimes you got a surprise instead.
That sounds like a good thing, right?  No automatic bugs, just manually placed ones.  What it really means is that bugs.dragonflybsd.org no longer autocreates users, cause there was a certain amount of spam coming through freely created accounts there.  It may be hard to tell the next step.
If you have been enjoying the Digest for many years, and you'd like to buy me a nice sandwich, you most certainly can.
Accidental theme of the week: old-school non-UNIX operating systems.  
Watch for post-BSDCan slides and material and ideas to show up in the next few weeks.  
Here's something that might be useful: an example cleaning file for creating an AWS DragonFly image.  Here's the blob if you want to see what's in it.  I assume you will want to install awscli to use.
There's a vmm demo from Josh Greene tomorrow, at SEMIBUG's monthly meeting.  Go, if you are near.
Cobbled together early cause I have an unexpectedly busy weekend, so you are getting a straight dump of everything pending I had in RSS, Thursday night.
I have more links than I expected.
This may never ever matter if you manage to avoid fdisk your whole life.  But if you don't pull that off, here's the reminder: label your DragonFly slices with 108. (Yes, I do in fact have a backlog of two months with DragonFly material.  It's been that constant.)
I am confused because it seems like we had two BSD Now episodes in a week, but I am not complaining.  Episode 298 is up (show notes) and has a goat.