The version numbers and 1.478.564.0 are specific build versions of Forza Horizon 4
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The phrase "e work" in the query likely refers to the effort required to make these versions operational, often in an environment where the official Microsoft Store/Xbox Game Pass launcher attempts to force the newest version. This section outlines the technical steps involved in this work. forza horizon 4 update 1465282 1478564 e work