History
Worked out by reading the registry of every Minecraft build Mojang has published, in release order.
| Version | Date | What the files show |
|---|---|---|
| 26.3-snapshot-1 | 23 June 2026 | Added. |
Blue Wool Slab is an item in Minecraft that is crafted from Blue Wool. Blue Dye and the Black, Brown, Cyan, and Gray Wool Slabs also feed into its crafting.
Players place it to set down a Blue Wool Slab block. It stacks up to 64 and is an ingredient in 16 recipes.
Worked out by reading the registry of every Minecraft build Mojang has published, in release order.
| Version | Date | What the files show |
|---|---|---|
| 26.3-snapshot-1 | 23 June 2026 | Added. |