Some of the stuff I did in 2015:
Yosys now has a powerful formal verification flow based around the SMT2 file format: yosys-smtbmc. I've also made a presentation on computational complexity, SAT/SMT solving, and that new verification flow:
http://www.clifford.at/papers/2015/yosys-smt-bmc/
I have written a documentation of the iCE40 bit-stream format and created a Yosys-based open source synthesis flow for that FPGA family (Project IceStorm):
http://www.clifford.at/icestorm/
I have created PicoRV32, one of the smallest RISC-V CPU cores out there:
https://github.com/cliffordwolf/picorv32
I've released SimpleVOut, A Simple FPGA Core for Creating VGA/DVI/HDMI/OpenLDI Signals:
https://github.com/cliffordwolf/SimpleVOut
I have participated in this years Google Summer of Code as a mentor. Unfortunately the student I mentored dropped out shortly after the midterms. But the publicity from the Google Summer of Code helped me find Cotton Seed and some other very interesting people (or rather helped them find me). Cotton is the author of Arachne-pnr, the place and route tool used in the IceStorm FPGA flow.
I bought a Ninebot One, learned how to ride it, and then learned the hard way to only ride it wearing protective gear: I broke both my wrists and my right elbow in an accident. Luckily I recovered very quickly.
The video recordings on the (german) electronics lectures I gave at Metalab went online this year, over 100 videos :
https://metalab.at/wiki/Elektronik_Kurs#Videoaufzeichnung
