Minecraft Snapshot 4 Ditches GLFW for SDL3

26.3 Snapshot 4 modernizes core window and input systems today while adding new datapack tools, spectator portal teleporting, creative inventory reordering and a mountain of fixes. This is the technical housekeeping that keeps Java Edition viable long term.

If you launch Minecraft Java today you might notice some differences under the hood. 26.3 Snapshot 4 replaces the long serving GLFW library with SDL3 for handling windows, input and platform specific quirks. Mojang says this improves compatibility, relative mouse mode, physical key handling and defaults to borderless fullscreen. The minimum window size is now 320×240 pixels.

What actually changed for players

Players in spectator mode can now interact with portals to teleport. Armadillos no longer roll up when submerged in liquids. The creative inventory has been reordered so non tiered mineral items and blocks appear first. The debug overlay now shows separate GUI scale, player speed and display refresh rate.

Creator and datapack tools get love

• New minecraft:cooking_fuel and minecraft:brewing_fuel item components
• minecraft:cushion/color component plus multiple placement and behavior fixes for the new decor
• Environment attributes for natural mob spawns and worldgen probability
• Data pack version 111 disables automatic click event execution on signs
• Expanded loot table and advancement support with registry references and new density functions
• Number providers for cooking and brewing times

There are also resource pack additions for order independent transparency shaders and a long list of bug fixes covering everything from keybind conflicts and crashes on Wayland to texture z fighting and spreadplayers behavior in voids. The full list is exhaustive and available in the official post.

You can grab the snapshot through the Minecraft Launcher by enabling snapshots in installations. The dedicated server jar is also available. Report any new issues on the Minecraft bug tracker or through the official feedback site. Snapshots can corrupt worlds so back up your saves.