data pack
Cauldron of UndyingMinecraft data pack for 26.3
Throw dyed items and blocks into a Cauldron of water to remove the dye. Plus Dirt to Mud and Concrete Powder to Concrete support.
- Latest version
- 1.5
- Minecraft
- 1.21 to 26.3
- Licence
- GPL-3.0-or-later
- Downloads
- 302
- Updated
- 10 d ago
- Available on
- Modrinth
Our hostingHost Cauldron of Undying servers
Deploy a server with Cauldron of Undying already added to the world, on hardware built for it.
- 26.3
- Data pack
- One click install
- Version matched
- Automatic backups
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Cauldron of Undying declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 26.3 | Data pack | 25+ | declared | 15 Sept 2026 |
| 1.21.8 | Data pack | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Data pack | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Data pack | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Data pack | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Data pack | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Data pack | 21+ | declared | 23 Oct 2024 |
| 1.21.2 | Data pack | 21+ | declared | 22 Oct 2024 |
| 1.21.1 | Data pack | 21+ | declared | 8 Aug 2024 |
| 1.21 | Data pack | 21+ | declared | 13 Jun 2024 |
Download
From Cauldron of Undying’s own host. Nothing is re-hosted here.
Most recently published release
CauldronOfUndying26.3.zip · 19 KB · for 26.3
5640f12159d5…Older versions5Hide older versions
- 1.422 Sept 20251.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4 +4 more18 KB50 downloads
f54fcbad781a…Get - 1.38 Jul 20251.21.7, 1.21.6, 1.21.5, 1.21.4, 1.21.3 +3 more18 KB63 downloads
f310c6563c12…Get - 1.224 Jun 20251.21.6, 1.21.5, 1.21.4, 1.21.3, 1.21.2 +2 more18 KB20 downloads
f310c6563c12…Get - 1.18 Apr 20251.21.5, 1.21.4, 1.21.3, 1.21.2, 1.21.1 +1 more18 KB56 downloads
bc0c6b843596…Get - 1.028 Sept 20241.21.1, 1.2117 KB36 downloads
3e87c88f98c3…Get
Frequently asked
Does Cauldron of Undying work on Minecraft 26.3?
Yes. 26.3 is the newest Minecraft version Cauldron of Undying declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Cauldron of Undying support?
Everything the author has declared, from 1.21 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Cauldron of Undying on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
What licence is Cauldron of Undying under?
GPL-3.0-or-later, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Cauldron of Undying?
Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.
Where do I download Cauldron of Undying safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .