Minecraft 26 update guide
This page is a practical checklist—not a full changelog. Always trust Mojang’s official articles and your launcher or store for the exact behavior in your edition.
⚠️ Do this before opening any world in 26.x
- Back up the entire world folder (copy it somewhere safe outside the game folder).
- Assume you cannot “undo” a world after the game has upgraded it to the new format—treat the upgrade as one-way unless Mojang states otherwise for your exact version.
- On Java, older game versions may not load worlds that have been upgraded to the new layout; keep a separate copy if you still play on an older client.
- After upgrading, if anything looks wrong, you want that backup—not a rushed fix in the live folder.
Irreversible world changes
Mojang describes the Java 26.1 release as including a mandatory, one-time world upgrade to a new storage format. Plan for that before you launch important worlds. See their post linked below.
☕ Java Edition 26.1
Java 26.1 is the main line where the new world storage work lands for many players. Mojang’s article explains the upgrade path, what happens to region files, and compatibility expectations.
Official & reference links:
- Minecraft Java Edition 26.1 — Minecraft.net
- Java Edition 26.1 — Minecraft Wiki (community reference; verify against Mojang when it matters)
📱 Bedrock 26.0
Bedrock’s numbering and rollout differ from Java, but the same discipline applies: back up worlds before updating, read the changelog, and don’t assume Java and Bedrock behave identically.
Official link:
🧭 Using Find Ores with Minecraft 26.x
In the Find Ores app and on this site, choosing 26.x Java or 26.x Bedrock uses the same ore layout rules as 1.21 (current world generation for those ores). Your coordinates should line up with a 1.21-style world; always confirm in-game if you use mods or experimental packs that change generation.
Tip
For ore Y-levels and mining tactics, our existing guides (diamond, iron, etc.) still apply to that generation style.