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data pack

Bookshelf Development BundleMinecraft data pack for 26.3

A collection of modules to help you debug your datapack while you build it.

server onlynewest supported release 26.3Game MechanicsLibrary
Latest version
4.2.1
Minecraft
1.21.5 to 26.3
Licence
MPL-2.0
Downloads
883
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Bookshelf Development Bundle servers

Deploy a server with Bookshelf Development Bundle already added to the world, on hardware built for it.

  • 26.3
  • Data pack
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Bookshelf Development Bundle declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
26.3Data pack25+declared15 Sept 2026
26.2Data pack25+declared16 Jun 2026
26.1Data pack25+declared24 Mar 2026
1.21.11Data pack21+declared9 Dec 2025
1.21.10Data pack21+declared7 Oct 2025
1.21.9Data pack21+declared30 Sept 2025
1.21.8Data pack21+declared17 Jul 2025
1.21.7Data pack21+declared30 Jun 2025
1.21.6Data pack21+declared17 Jun 2025
1.21.5Data pack21+declared25 Mar 2025

Download

From Bookshelf Development Bundle’s own host. Nothing is re-hosted here.

Most recently published release

4.2.1release19 Sept 2026

bookshelf-dev-26.3-v4.2.1.zip · 56 KB · for 26.3

Download this release
cc10e412640f…
Older versions13
  • 4.2.015 Sept 202626.356 KB5c7fad124abe…Get
  • 4.1.127 Aug 202626.256 KB633fa4227c0b…Get
  • 4.1.017 Jun 202626.256 KB4 downloads54a1618174fc…Get
  • 4.0.14 Apr 202626.156 KB7 downloadsa4f783401ce8…Get
  • 4.0.024 Mar 202626.156 KB7 downloadsf02348535a89…Get
  • 3.2.21 Feb 20261.21.11, 1.21.10, 1.21.959 KB9 downloads58dc29f20fce…Get
  • 3.2.112 Jan 20261.21.11, 1.21.10, 1.21.959 KB7 downloads3758be74b9b2…Get
  • 3.2.09 Dec 20251.21.11, 1.21.10, 1.21.959 KB16 downloads01313f1f133e…Get
  • 3.1.130 Aug 20251.21.8, 1.21.7, 1.21.664 KB122 downloads6b1d72b8bc24…Get
  • 3.1.017 Jul 20251.21.8, 1.21.7, 1.21.664 KB121 downloadsbacc83aa3fef…Get
  • 3.0.24 May 20251.21.564 KB126 downloads94e6f3bfdff3…Get
  • 3.0.12 May 20251.21.571 KB134 downloadsf8f8fd5d0133…Get
  • 3.0.06 Apr 20251.21.569 KB157 downloadsb57a34550499…Get

Frequently asked

Does Bookshelf Development Bundle work on Minecraft 26.3?

Yes. 26.3 is the newest Minecraft version Bookshelf Development Bundle 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 Bookshelf Development Bundle support?

Everything the author has declared, from 1.21.5 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 Bookshelf Development Bundle on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is Bookshelf Development Bundle under?

MPL-2.0, 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 Bookshelf Development Bundle?

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 Bookshelf Development Bundle 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.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TectonicTerrain shaping brought to new heights, grander and more varied than ever before!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.

Details from Modrinth, where the author last updated it on 19 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .