Doesn't look like it's been updated since 2020 (based on copyright page) Popular in:

2022 (91 points, 44 comments) https://news.ycombinator.com/item?id=32067559

2019 (134 points, 30 comments) https://news.ycombinator.com/item?id=19354465

~2018 (112 points, 8 comments) https://news.ycombinator.com/item?id=16087689

~2014 (41 points, 9 comments) https://news.ycombinator.com/item?id=8256469