26.3, the release of Wilderness Bound, is a game drop for Java Edition released on September 15, 2026, which adds the dappled forest biome with the new poplar wood type, red shrubs, and shelf mushrooms. It also adds wool stairs and slabs, concrete stairs and slabs, straw beds, cushions, and a new structure called the abandoned camp, and fixes bugs. Full changelog: https://minecraft.wiki/Java_Edition_26.3