I am doing this one at the last minute.  I had all the articles noted, but normally I build this post over the course of the week.

• FreeBSD has added the atse(4) network driver.
• FreeBSD has added iw_cxgbe, for Chelsio T4/T5 chips.
• FreeBSD has added (initial, minimal) AR9340 switch SoC support.
• PC-BSD has an interesting install-to-SSD option that disables atime and swap.
• NetBSD now has a Lua device driver to access.
• NetBSD has added Apple’s libunwind.
• NetBSD has added several different iic sensors from OpenBSD.
• OpenBSD has added vxlan(4), a virtual LAN setup.  (Layer 2 traffic over layer 3)
• “Vendor said so” is a reasonable excuse.
• OpenBSD has an altq replacement.