Alpha 7 was a change that completely abandoned the style that got them that far. Block terrain was replaced with smooth in the largest bait and switch maneuver Minecraft fans who came over to try "Adult Minecraft" had ever seen.
Alpha 11 was a change that completely abandoned the style that got them that far. XP was introduced for the first time. Never in 10 alpha's previous had there been any sort of XP earned by playing. You just played to play.
Alpha 12 was a change that completely abandoned the style that got them that far. Crafting method was completely overhauled and the user interface was changed completely.
Alpha 15 was a change that completely abandoned the style that got them that far. Spam crafting was made possible to a degree never before seen and for the first time nobody started playing the actual game until a few days of huddling somewhere filling up crate after crate with stone axes.
Alpha 17 is a change that completely abandoned the style that got them this far. Again.
And yet....I still find myself crafting items I need, harvesting materials I need, looting places of interest, building a base or reinforcing an existing building and building a defense, and trying not to die each 7th day when the blood moon rises.