Minecraft 26.2 Snapshot 5: Geysers, Explosive Sulfur Cubes & Server Protocol 3.0 (April 2026)

Mojang shipped Minecraft 26.2 Snapshot 5 on April 28, 2026 — and it is the first Chaos Cubed snapshot that adds something genuinely new since the polish round in Snapshot 4. Geysers are in. Sulfur Cubes can now absorb TNT and become living explosives. Hoglins have flipped back to hostile. And quietly tucked into the technical notes is the change every server admin needs to know about: Server Management Protocol bumped to 3.0.0, with heartbeat support during world loading.

This is the snapshot where Chaos Cubed stops being a pile of new blocks and starts being a real survival mechanic.

Release Date

Minecraft 26.2 Snapshot 5 was released on Tuesday, April 28, 2026, on the Java Edition snapshot channel. It follows Snapshot 4 (April 21) and continues the weekly cadence Mojang has been holding for the Chaos Cubed drop. The full release of Java 26.2 and Bedrock 26.30 is still targeted for Q2 2026 — with this snapshot adding the last major mechanic, a release candidate is realistic by mid-to-late May.

Geysers Are Live — How They Actually Work

The headline addition is Geysers. They are not a new block — they are a behavior that Potent Sulfur picks up under specific conditions, which is the kind of emergent recipe that tends to spawn entire community subgenres.

To build a geyser:

• Place a magma block
• Stack a Potent Sulfur block directly on top of it
• Stack 1 to 4 water source blocks above the sulfur

Once the structure is correct, the geyser erupts every 50 seconds. Each eruption applies an upward impulse to entities sitting above it for 4–5 seconds, lifting them roughly 7 blocks per water source block stacked on top. Entities are not damaged by the launch.

The survival implications are immediate:

• Vertical mob farms become trivial — drop hostile mobs into a geyser pit and let the eruption fling them up to a kill chamber.
• Parkour map authors finally get a vanilla launch pad without pistons or slime.
• PvP servers get a fairer rocket-jump mechanic without the explosion damage.
• Adventure maps get a 50-second cycle they can build elevator and timing puzzles around.

Four new particle types — geyser_base, geyser_poof, geyser_plume, and the geyser emitter — handle the visuals. If you maintain a custom resource pack, the texture atlas added 32 new geyser-related textures across eight variants each.

Sulfur Cubes Are Now Walking Bombs

The second major addition is the Explosive Sulfur Cube archetype. A Sulfur Cube can now consume a TNT block and become a primed explosive on legs. The mechanics:

• Activation: feed the cube a TNT block (it absorbs it).
• Ignition methods: redstone, any fire source, or a nearby explosion.
• Fuse times: 6 seconds when ignited by fire or redstone, 0.75 to 3 seconds randomized when ignited by another explosion.
• Locked while primed: a primed explosive cube cannot be picked up with a bucket, damaged, or sheared. The TNT is stuck.
• Detonation: the cube is removed entirely on explosion — no small cubes spawn from the wreckage.

The new entity tag fuse reports the current state (-1 if inactive). A new data pack registry field explosion_fuse controls archetype-specific fuse behaviour.

The combat implication is real. Build servers with creative spawning are about to get a new griefing class, and PvP servers will have to think about whether to whitelist the explosive archetype with a datapack tag (#sulfur_cube_archetype/explosive is the new item tag for it).

Hoglins Are Hostile Again — And They Despawn on Peaceful

Snapshot 4 made Hoglins spawn on Peaceful for the first time. Snapshot 5 reverses that. Hoglins are now classified as hostile, which means they despawn on Peaceful difficulty like they did before. If your server runs Peaceful, you will lose any Hoglins currently in loaded chunks the moment players update.

Mojang's note framed this as a behaviour correction rather than a regression — Hoglins were always supposed to be hostile, and last snapshot's Peaceful spawn was an unintended side effect of the broader Peaceful-spawning fix. Worth telling your community before they log in and find their pet Hoglins gone.

Server Management Protocol 3.0.0 — The Headline for Hosts

This is the snapshot 5 detail every Minecraft host should care about. Server Management Protocol bumped from 2.x to 3.0.0, and the change is structural, not cosmetic:

• The management server now starts before the Minecraft server.
• Heartbeat messages now flow during world loading and world upgrades, not just after the server is fully online.

In 2.x, a long world load looked indistinguishable from a hung process — automated supervisors had no way to tell whether to wait or restart. In 3.0.0, you can finally trust the heartbeat to mean "alive, just busy". For hosts running large worlds with chunk upgrades after a snapshot bump, this is a quiet but enormous quality-of-life win.

If you have wrapper scripts or panel integrations that parse SMP messages, plan to test against the 3.0.0 spec before you push players onto Snapshot 5.

Touchscreen Mode Removed

Mojang has removed the in-game Touchscreen Mode option. The note: it has been poorly implemented and unsupported for a long time. No real impact on hosting — but worth knowing if any of your players were using it.

Other Technical Changes Worth Tracking

• Data pack format bumped to 104.0 — your custom datapacks need their pack_format updated.
• Resource pack format bumped to 86.2 — same for resource packs.
• Attribute renamed: minecraft:nameplate_distance → minecraft:name_tag_distance. If you wired the new attribute into a datapack last week after Snapshot 4, you need to rename it.
• minecraft:multiface_growth block field is now mandatory — old configurations without it will fail to load.
• Density function swap: minecraft:weird_scaled_sampler is removed; the new minecraft:interval_select replaces it for threshold-based selection. If you maintain a custom worldgen datapack, this is a hard break.
• New block predicate matching_biomes — checks the biome at a position. Useful for biome-locked structures and loot.
• New block immunity tags — #fox_immune_to, #polar_bear_immune_to, #snow_golem_immune_to, #stray_immune_to, #wither_immune_to, #wither_skeleton_immune_to, plus an empty #default_immune_to. These affect dismounting and spawn placement, not pathfinding.
• New gametest command minecraft:difficulty lets test environments swap difficulty.

16 Bug Fixes — Skeletons, Scoreboards, Spawn Eggs

Notable closes:

• MC-307702 — skeleton AI broke when picking up items.
• MC-307754 — monsters spawned despite the Spawn Monsters game rule being disabled.
• MC-307194 — fletcher tipped arrow trade discount was reducing arrow cost instead of emerald cost.
• MC-307266 — zombie villagers changed biome type after curing.
• MC-304862 — dispensers consumed hostile spawn eggs on Peaceful and played the dispense sound, even though nothing actually spawned.
• MC-307513 — /deop showed the same player in multiple success messages.

What This Means for Your Server

Quick checklist before you swap your test server to Snapshot 5:

• Take a world backup. Geysers and Explosive Sulfur Cubes are new world-modifying mechanics — you want a known-good rollback point.
• Update datapacks to format 104.0 before you load. Pay extra attention to anything that references nameplate_distance (now name_tag_distance) or weird_scaled_sampler (gone — use interval_select).
• Audit your worldgen datapacks — minecraft:multiface_growth.block is now mandatory.
• Test your panel integration against the new Server Management Protocol 3.0.0. Heartbeat behaviour during world loading has changed — your watchdog scripts may need updating.
• Warn your Peaceful players about Hoglins despawning the moment they update.
• Plan for griefing on creative servers — Explosive Sulfur Cubes need a moderation policy. The #sulfur_cube_archetype/explosive tag lets you blacklist them via datapack if needed.
• Push the Mac-Vulkan retest if you skipped Snapshot 4 — Vulkan stability work continues here.

Verdict — Chaos Cubed Just Got Its Hook

Snapshots 1 through 4 added the materials of Chaos Cubed. Snapshot 5 added the mechanics. Geysers turn Potent Sulfur into a build-puzzle ingredient, and Explosive Sulfur Cubes turn the mascot mob into a strategic decision rather than a visual gimmick. Combined with the Server Management Protocol 3.0.0 upgrade, this is the snapshot where the Q2 2026 release stops feeling like a content patch and starts feeling like a real drop.

Expect a Snapshot 6 next Tuesday with balance passes on the new mechanics. A release candidate by mid-May is now firmly on the table.

Host Your Minecraft Server with DoomHosting

Running a Snapshot 5 server on DoomHosting takes about ninety seconds. Pick Minecraft Java Edition, point your Pterodactyl egg at the snapshot JAR, and the panel handles the rest — DDoS protection, full FTP for datapack swaps, and instant restarts when you flip snapshot versions. The new Server Management Protocol 3.0.0 heartbeat means panel uptime detection finally works correctly during long world loads.

Start your Minecraft server →

Geysers are in. Explosive cubes are in. Chaos Cubed is one snapshot away from a release candidate — get your test server running before the rush.