Historically, the old books have worked just fine when the exam version changes. The exam is a test of your experience and critical thinking skills, not a test of your ability to memorize a book.
(ISC)² does maintain a list of suggested references. To save @rslade the effort of replying I will also mention that Ross Anderson's
Slade's Security Engineering is also an extremely good reference, for which the prior version is available as a free PDF.
I think William meant Ross Anderson's ....