This can be mean to let you know the latest information

ｏr to　“ｋｅｅｐ　ｍｅ　ｉｎ　ｔｈｅ　ｌｏｏｐ＂，　ｂｕｔ　Ｉ guess that's another variation that's hard to interpret. It just means that if something new happens, please keep me informed. For example, if you are involved in a project, then you may want to always know what's going on. It's not really the same as "let me know the latest/most recent news", because it has a cyclic meaning and the news is not assumed to just occur once. For example, "If you have any new news, please let me know" can be used to substitute.

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Does this mean.... Yes it does.