Backdating a map from 1.7.x to 1.6.x
I have seen some megabuilds on PMC and would like to use it in a 1.6.x server however the map in question is a 1.7.x world. The question is what are the blocks that can potentially dissapear if i backdate the map? I can understand that moving out of the already generated region would cause shear cliffs as world gen code have changed.
Best Answer
The changes are as follows
New blocks! Two new types of wood. Stained glass! With both blocks and panes. Packed ice, red sand, podzol. Lots of new flowers, including double-tall versions of current plants. Portals can be bigger sizes!
These wood blocks are - Dark Oak - Acacia - and of course the planks and leaves for these. and what wasn't mentioned was the hardened clay with all of its colour types.
New world generation! Double the amount of biomes, with new trees/flowers/blocks. New “Amplified” world option. Less ocean, more awesome.
Also worth noting is maps in frames will not work the same when backdating if this was used in the mega build
If the builds use these items they will simply not appear when you downgrade but what you could do is go into single player use a world edit utility and convert the blocks yourself to something similar
EDIT Also to note is that any unloaded chunks from the map will end up have ugly world boarders as the world gen changed drastically causing this issue.
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