Differences between new and old syllabus for CCA 175?

I have already finished till Pyspark from old playlist and I am seeing that the people appearing exam in month of April are also getting questions as per old syllabus. I am in a dilemma of whether to start with new playlist as per revised syllabus or study with the old playlist.

Can someone point out the changes between new and old syllabus topicwise?

Thanks

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