wat does it mean wen it says it is a beta file?

[GallitGun523]

wat does it mean when it is a beta file?

 

[SierraSonic]

Alpha, No where near complete, usually never released.

Beta, not complete, but almost there release.

Non-Beta, They say this is complete, but they will always find some things to add and fix bugs.

 

[Dask]

alpa is the ancient number from somewhere for 1 and beta is the number for 2