They keep publishing Russian version of this book, with the latest covering PostgreSQL 18: https://edu.postgrespro.ru/postgresql_internals-18.pdf
AI should do a decent job translating it to English.
On an unrelated note, this reminds me of the excellent books published by Mir Publications. Russian books in general are of very high quality.
On an unrelated note, this reminds me of the excellent books published by Mir Publications. Russian books in general are of very high quality.