I am looking for the same thing. If the exam has been updated where can I get the latest copy of the BoK, or any other updated study material as well. Any updates of the practice exams? I am currently trying to get all this information together to take the CQE exam later on this year.
I downloaded two version of BOK in ASQ for CQE in 2018 and 2019 and compared them one by one. I don't see much differences in BOK. I just took the exam at the end of June and don't notice any questions out of scope of current Prime. Should be fine to most of earlier materials.
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