A: The 5th edition (2019) has updated examples, a new eBook, and improved design. However, the grammar is identical. A 2nd or 3rd edition PDF is perfectly fine for learning.
If you're interested in downloading English Grammar in Use Intermediate PDF, you can find it on various online platforms, such as Cambridge University Press, Amazon, or Google Books. Be sure to check the availability of the PDF version and any accompanying audio or video resources. Raymond Murphy English Grammar In Use Intermediate Pdf