Max Row for Another Column - M Query

Anonymous - Here is an improved version that keeps all of the information in the maximum OS_Version row and only that row:

Updated PBIX is attached

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("RY2xDoMwDER/pcrMAvxCl04MSCxR1KE6GkshlpJA+/nYKMBwtvzubFtrhvH9eppG+4SUiaMMIy94fDisyzVx8Ugnc401rTgqjpCaseHmnaj8WCro68vBu5ovPkE3IsniaahmXpP69Y6iXjFtGke4PvT1Uqb/8QdBEs7t", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [#"(blank)" = _t, #"(blank).1" = _t, Column1 = _t, Column2 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"(blank)", type text}, {"(blank).1", type text}}),
    #"Promoted Headers" = Table.PromoteHeaders(#"Changed Type", [PromoteAllScalars=true]),
    #"Changed Type1" = Table.TransformColumnTypes(#"Promoted Headers",{{"OS_ID", Int64.Type}, {"OS_Version", Int64.Type}}),
    #"Grouped Rows" = Table.Group(#"Changed Type1", {"OS_ID"}, {{"OS_Version", each List.Max([OS_Version]), type number}, {"OtherRows", each _, type table [OS_ID=number, OS_Version=number, Some column=text, Some other column=text]}}),
    #"Expanded OtherRows" = Table.ExpandTableColumn(#"Grouped Rows", "OtherRows", {"OS_Version", "Some column", "Some other column"}, {"OtherRows.OS_Version", "OtherRows.Some column", "OtherRows.Some other column"}),
    #"Added Custom" = Table.AddColumn(#"Expanded OtherRows", "Keep", each if [OS_Version] = [OtherRows.OS_Version] then 1 else 0),
    #"Filtered Rows" = Table.SelectRows(#"Added Custom", each ([Keep] = 1))
in
    #"Filtered Rows"