i915 DRM has been updated to match the Linux 4.8.17 version, in DragonFly.  It includes some OpenBSD work too, interestingly.
CCC 36 is over, but the videos are on Relive and will eventually be collected.  CCC is one of the few remaining big not-a-corporate-event events; always worth viewing.  (posting now so it doesn't get lost in the new year.)
There's several accidental themes fighting it out this week. Your unrelated music link of the week: Cosey Fanni Tutti ?– Tutti.  Found via Ted Gioia's Best 100 Albums of 2019, which was discovered via Conversations with Tyler.  There, now you definitely have enough to listen to until 2020.
Quiet week, so catch up on your reading here.  
It's probably going to be quiet for at least a few days because of the Christmas holiday, though I'll of course have the normal weekend features up. In the meantime, here's something to ponder: this post about tmux and plugins for it led me to thinking about plugins in general.  The pkg system is sort of a plugin scheme for BSDs, much like apt for Debian, yum, etc.  Each language has its own libraries to load and plugins to manage past that, like Perl's CPAN.  Nowadays, applications have their own plugins.  For instance, a system with Wordpress installed with PHP installed with PHP plugins required with Wordpress plugins that also require given PHP libraries.  Wordpress manages keeping itself and its plugins up to date, but not the underlying PHP installation.   You can get something similar with Perl along with the Perl-specific package updates, through cpanm.  Or, npm, which seems to be its own world of constant flux. How many levels could this go?  Like running multiple emulators within each other, how many levels of plugin could you achieve?  There's probably a series of levels proceeding from tedious to barely maintainable to ridiculous.
Accidental theme this week: roguelikes!  Maybe with me that's not so accidental.
I managed to miss the Thursday update to BSDNow (#329) - Michael W. Lucas is interviewed mostly about his unnatural love of gelato BSD books , and he's always an entertaining talker.  
You probably type "du -sh *" reflexively when looking at disk usage, or at least I do.  On DragonFly, there's also a -t option, which gives the simple file size on disk.  That's the amount of data that would need to move when copied; that may differ from other amounts because of compression at the filesystem level.
This is minor, but I'll mention it because it might bite you someday: if you are using powerd to minimize CPU power usage, and also trying to push a high data rate through your serial port, you might drop characters.  It's mentioned in the powerd(8) man page, which has an entertaining bugs section.
The BSD.nrw Dusseldorf-Wersten BSD user’s group next meeting is on the 20th.  Go, if you are near.
This recent change in kernel memory use may make booting faster.  If you're running -current, time your boot before and after this change, and see what the difference is.  I'm always curious.
Some deep dives here; take your time today.
Lots of variety this week.
BSD Now 328 is out, and it's covering various news items; the common thread seems to be "please test this new tech", which is always exciting.