In fact, objectively speaking, it is necessary to prepare for the postgraduate exam in 2023 with the textbook of 2022. If you wait until the new textbook comes out to review, it may be too late. However, candidates should pay attention to the fact that English and mathematics can be used for one year, but it is best to use new textbooks for politics.

Generally speaking, English for public subjects has not changed much over the years, and it doesn't make much difference whether the latest version is used or not. In fact, it can be seen from the syllabus of the past years that the scope and methods of the English test for postgraduate entrance examination have not changed much, so in general, you can use the review materials of previous years. The latest version must be used unless the question type and scope have changed greatly.