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? 220.127.116.11 00:03, 1 March 2019 (UTC)