Seamless Double Slabs and 1.13
When the smooth stone double slab was re-implemented, along with the smooth sandstone double slab and smooth quartz double slab, all the other stone slabs (old wood, cobblestone, bricks, stone bricks and nether bricks) also got "seamless" variants (with data values 10-14, respectively), though they appeared identical to their normal counterparts in-game. In more recent versions, it has been possible to alter the appearance of these separately from their normal counterparts by modifying their blockstate files, and a few resource packs do take advantage of this feature.
However, in the 1.13 snapshots, those five variants have been removed. If they exist in a world, they will turn into the normal double slab counterparts of themselves. Granted, they've been restricted to /setblock only for a while, but that hasn't stopped people from using them. I don't know if it's significant enough to be worth mentioning in the article, though. - Princessnightmoon (talk) 12:19, 27 March 2018 (UTC)
Weird slab behaviour in Survival Test
As you can see, slabs have weird behaviour when placed on top of one another. The video is in 0.27_ST but it is the same in 0.30. When was this removed and should this be mentioned somewhere? – Nixinova 04:59, 19 May 2018 (UTC)
New slabs in Bedrock Edition
There are petrified oak slabs, but I can't find anything else about petrified oak anywhere. Where does the material for this slab come from? Or are they generated in construction somewhere? 184.108.40.206 00:03, 1 March 2019 (UTC)
- They cannot be obtained in survival, unless you have a world from 1.2(going from memory) or earlier; it was the wooden slab that acted like stone (needed tool and doesn’t burn), which basically got replaced with the current wooden slabs. FVbico (talk) 06:20, 1 March 2019 (UTC)
Why mojang forget that? 220.127.116.11 03:05, 4 May 2019 (UTC)
Iron golem spawn interaction with slabs in Bedrock
The article says "In Bedrock Edition, iron golems do not spawn even on a top slab." I added a 'verify' template on that because in my observation (not thoroughly tested), a slab doesn't prevent an iron golem from spawning. Often, the golem doesn't appear to spawn on the slab, but rather in the slab.
I don't have Java Edition, only Bedrock, but I notice that Iron Golem § Villages says about Java Edition: "Iron golems can spawn inside transparent blocks, stairs, carpets and half-slabs as long as there is a full block underneath them." Bedrock Edition 1.11.0 changed the spawning rules about the volume in which an iron golem spawns. Apparently the types of surfaces it can spawn on were changed also.
This is a key bit of information to get correct. Iron golem farms all broke in the 1.11 update when the spawn rules changed to rely on beds and the definition of the village center. Survival-mode farm designs need a way to prevent iron golems from spawning inside the area where beds are... and apparently laying slabs on the floor is no longer sufficient; you may need to dig out underneath the slabs a bit. ~ Amatulic (talk) 20:49, 30 October 2019 (UTC)