I'll be taking my EX188 (EX188K specifically, since I'm taking it online) next week on the Ides of March
As I'm going through 4.14, it does appear to be the same material as 4.12 just using RHEL 9 for the lab exercises; thus, it looks like this new course version won't be of much consequence for my upcoming exam.
yes @EddieJennings many times the underlying infra is updated to the latest ones whereby courses more or less remains same wih little tweakings here and there.
You can choose any of the available versions for training and exam based on your choice.
Red Hat
Learning Community
A collaborative learning environment, enabling open source skill development.