In the latest months I’ve been doing some research in Flex, to have better understanding of the RIA, event-driven development. Well, there was also an interest in AMF, AIR, mobile applications, and so on. And because I needed an extra motivation for that, I planned to take the Adobe Flex certification exam. Adobe Developer Connection provided a quick overview of the exam, and the Adobe official exams page shows the Adobe® Flex 4 ACE Exam (9A0-129) available (along with the older, Flex 3 version).
However, when going to Pearson VUE website (the exam provider), I found that starting today (13 Oct 2011), the no longer support the Flex 4 exam, offering as alternative the Flex 4.5 certification exam (9A0-182):
Pearson VUE: Adobe:

Adobe does not mention anything about that, they don’t provide any study guidelines, nor specific details about the exam (sections, number of questions, time allowed, etc). This lack of communication between the two entities (let’s go with that) is quite strange in my opinion.
I contacted both Adobe and Pearson VUE – and I’ll update this post as soon as I will have more details.

Update 25 Oct 2011: Pearson VUE answered me suggesting to contact Adobe for more information.