26w14a, supposedly the first and only snapshot for the "Herdcraft Update", is an April Fools' Day joke snapshot released on April 1, 2026. Similar to 22w13oneBlockAtATime, it disables many inventory features. Instead, the player can command "living blocks" using various tools in their hotbar. The blocks act as mobs, meaning they can be hurt, moved, and attacked. Full changelog: https://minecraft.wiki/Java_Edition_26w14a

26.1.1 is a hotfix for Java Edition released on April 1, 2026, which fixes an issue with chat reporting. It is compatible with 26.1 servers. Full changelog: https://minecraft.wiki/Java_Edition_26.1.1