So I'm thinking about embarking on something I never seen anyone else do. I wanna go through every released version of minecraft and abuse the broken mechanics from each in order to obtain blocks that are usually unobtainable. IE: Going back to the early release days when you could get spawners with silk touch, obtaining alpha slabs, and making stuff like bows with infinity and mending on them in 1.9. The big one to me though is obtaining bedrock. I've browsed old forums and supposedly there was a way to do it in the late alpha - early beta days. But I've only seen some old screenshots and not a lot of tangible information.
If anyone out there knows some odd version of minecraft that let's you obtain unbreakable blocks that'd be great. The intention is once I've moved versions I can't go back starting with infdev.
Also, prior to 1.7 (e.g. 1.6.4) you can mine redstone lamps with Silk Touch and obtain a lit redstone lamp item (warning - early 1.7 snapshots/releases will crash and regenerate chunks containing these items, and the item would probably be deleted in newer versions, or cause similar issues (this might explain why some people have had chunks reset and other issues when upgrading worlds to e.g. 1.13, as newer versions have become increasingly sensitive to invalid blocks/items, even variants of valid ones; for example, 1.6.4 treats stone with any data value as a valid block/item but in 1.8 only data values 0-6 are valid).