My favourite is about software engineering in general:
- Software Engineering at Google: Lessons Learned from Programming Over Time by Titus Winters
Another good one is "Real-World Cryptography" by David Wong
Practical Object-Oriented Design: An Agile Primer Using Ruby 2nd Edition by Metz Sandi (Author)
Starting to get into programming again and she explains things in a way even a non programmer can understand. Quite rare in programming books. One of my all time favorites.
Not related to 2020 specifically; but you might find the ML/DL works of Timothy Masters (http://www.timothymasters.info) interesting. He has expertise in various domains and the code is all in C++.
Also i recently came to know of Markus Voelter (https://voelter.de/) and his works on DSLs. You might find his book DSL Engineering: Designing, Implementing and Using Domain-Specific Languages useful in coming up with DSL solutions for your ML/DL domain.
Artificial Intelligence: A Modern Approach, 4th edition (2020).
If there's enough, or you're willing to supplement it, and your employer doesn't already pay for it: https://learning.oreilly.com. I have made extensive use of this site since it was Safari Books Online (which was a better deal, you got download tokens and could get PDFs of the books or chapters).
There's a 2019 edition of The Pragmatic Programmer. I haven't read enough to compare it to the original.