It would be nice to see an updated version of this for recent releases.

Here is also the links to the backwards compatibility for the EP in newer guide if anyone is looking for later releases than M6. Ninth edition documentation will be updated soon with the information as well.

SAS® 9.4 In-Database Products: Administrator’s Guide, Eighth Edition
https://go.documentation.sas.com/?docsetId=indbag&docsetTarget=n104dbte7mppc0n1preqbdrvzgr8.htm&docsetVersion=9.4&locale=en

SAS® 9.4 In-Database Products: Administrator’s Guide, Ninth Edition (Backwards Compatibility section coming soon for M6 administration guide)
https://go.documentation.sas.com/?docsetId=indbag&docsetTarget=p1qt68x0lce2lmn19wpenhp6ibsb.htm&docsetVersion=9.4_01&locale=en
(when it is available the ninth edition should have a separate section for backwards compatibility that should be available soon in the left section of the link above.)