Does it make sense to read Java Philosophy, for SE 5/6

Downloaded the Java Philosophy 4th edition book last night . After reading the preface, this paragraph alerted me: " One of the important improvements in this edition is the complete integration of the "new" features of Java SE 5/6 for use in the book. We have collected material that is only compatible with Java SE 5/6 and most of it will not compile in previous versions of Java . " And a 2015 book. Advise how to be.