F.0 : Full release all features listed for version and bug fixed.
F.M.0 : Minor release of features that are fully bug tested. This can include a hotfix since it is fully bug tested.
F.M.L : Iteration of features completed does not have to be fully bug tested. Is not a public release but a release for those who like to live on the bleeding edge. Use leters at the end like 1.3.2 D to signify how many were released that week.