Lynn Conway, computer hardware pioneer (and genius) has passed away. None of her obits do justice to her accomplishments, so here's wikipedia:
https://en.wikipedia.org/wiki/Lynn_Conway
She pioneered asyncronous execution, VLSI circuit design, and practically the whole modern field of chip design.
She was also a trans woman who -- having been unfairly terminated by IBM -- never stopped fighting for the rights of trans people.
Rest in power, Lynn.