Includes the base game plus all released DLCs up to that version point (e.g., Apex, Contact, Contact, S.O.G. Prairie Fire, etc.).
Your user profiles and game settings are stored in %USERPROFILE%\Documents\Arma 3\ on Windows. File: Arma.3.v2.10.149954.Incl.ALL.DLC.zip ...
v2.10.149954. This specific build is often associated with "Ultimate Edition" repacks. Includes the base game plus all released DLCs