Will older versions of the game always be playable?

[theedgar]

right now you are able to access older versions of the game in steam, will this always be the case or is it just temporary? I'm asking because every now and again I like to go back to an older version to see what the game was like before

[Hatsune_Neko]

Dont think they will remove them as they the only version to work on 32bit system's.
They just wont be updated.