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data pack

Bookshelf Development BundleMinecraft data pack for 26.2

Debug and logging tools from the Bookshelf modular datapack library. Inspect variables, log with severity levels, and track issues.

server onlynewest supported 26.2Game MechanicsLibrary
Latest version
4.1.0
Minecraft
1.21.5 to 26.2
Java
Java 25+
Loader
Data pack
Licence
MPL-2.0
Downloads
705
Updated
2 mo ago
Available on
Modrinth
Space NodePartner

Host Bookshelf Development Bundle servers

One click and Bookshelf Development Bundle is installed with the right loader, on hardware built for it.

  • 26.2
  • 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
26.2Data 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.

4.1.0release17 Jun 2026

bookshelf-dev-26.2-v4.1.0.zip · 0.1 MB · for 26.2

Download latest
54a1618174fc…
Older versions10
  • 4.0.14 Apr 202626.10.1 MB7 downloadsa4f783401ce8…Get
  • 4.0.024 Mar 202626.10.1 MB7 downloadsf02348535a89…Get
  • 3.2.21 Feb 20261.21.9, 1.21.10, 1.21.110.1 MB9 downloads58dc29f20fce…Get
  • 3.2.112 Jan 20261.21.9, 1.21.10, 1.21.110.1 MB7 downloads3758be74b9b2…Get
  • 3.2.09 Dec 20251.21.9, 1.21.10, 1.21.110.1 MB16 downloads01313f1f133e…Get
  • 3.1.130 Aug 20251.21.6, 1.21.7, 1.21.80.1 MB122 downloads6b1d72b8bc24…Get
  • 3.1.017 Jul 20251.21.6, 1.21.7, 1.21.80.1 MB121 downloadsbacc83aa3fef…Get
  • 3.0.24 May 20251.21.50.1 MB126 downloads94e6f3bfdff3…Get
  • 3.0.12 May 20251.21.50.1 MB134 downloadsf8f8fd5d0133…Get
  • 3.0.06 Apr 20251.21.50.1 MB157 downloadsb57a34550499…Get

Frequently asked

Does Bookshelf Development Bundle work on Minecraft 26.2?

Yes. 26.2 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 26.2. 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.

Which loader does Bookshelf Development Bundle need?

Data pack. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Bookshelf Development Bundle?

Java 25 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the data pack itself.

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?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the data pack and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Bookshelf Development Bundle safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

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.TectonicTerrain shaping brought to new heights, grander and more varied than ever before!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!TrekBored of vanilla structure generation? This pack is for you!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.ExplorifyA simplistic, vanilla-friendly collection of new structures.

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .