Hi Clement, Can I still continue with CBK 4th Edition for the preparation for new exam?

With regard to not needing the 5th edition of the CISSP CBK in preparation for the new 4/15/18 exam, does that also apply to your series of 2015 CBTs'?  I recently begun my exam prep here and would like to be certain of the recommended CBT and study material I should focus on for a late April 2018 exam?

Thank you!

Upon further reading I believe this quote " Candidate preparation should not change as a result of exam outline revisions." from your site answers my earlier question.  

Thanks again... 

Do you know if a 5th edition of the CISSP CBK will be published for the new exam starting April 15, 2018?

I've been checking the (ISC)2 website, and they still have the current (4th edition, by Adam Gordon) for sale.