The current CCSP CBK contents are valid and there are no immediate plans to change them.
I would suggest you to get the 2nd edition of the book when studying: https://www.amazon.com/Official-ISC-Guide-CCSP-CBK/dp/1119276721
Also, the CCSP Official Study Guide released earlier this year: https://www.amazon.com/Certified-Cloud-Security-Professional-Official/dp/1119277418/ref=sr_1_1?s=boo... (This book has plenty of questions to practice)
All the best,
Official ISC2 Instructor