@lorky thanks for reading book-modern-c-programming-with-test-driven-development !
The historical errata is here: Errata for Modern C++ Programming with Test-Driven Development
Those items with a date in the “Fixed On” column are already addressed and available in the latest ebook version, which you can get from the My Orders page. Sign in here: Manage
Any errata found after July 2020 will be here on the book’s forum page: Modern C++ Programming with Test-Driven Development Book Portal | Devtalk
I hope that answers your question!