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The picker above selects by platform (launcher) or Minecraft version (mod-only). It always resolves to the latest stable release that ships that file — not a specific release tag.

Manual download

Launcher (recommended)

Platform	File
macOS	Papyrus Client-<version>-arm64.pkg from GitHub Releases
Windows	PapyrusClient-Setup.exe from GitHub Releases

The launcher is a Prism Launcher fork with Microsoft sign-in, Fabric-only instances, supported-version whitelist, and bundled papyrus-shield.

See Installation for macOS .pkg setup and the xattr steps if Gatekeeper blocks the app.

Mod only

Use these if you already have Fabric and another launcher but need integrity for a Papyrus server. One jar per supported Minecraft version:

Minecraft	File pattern
26.1.2	papyrus-shield-26.1.2-*.jar
1.21.11	papyrus-shield-1.21.11-*.jar
1.21.10	papyrus-shield-1.21.10-*.jar
1.21.8	papyrus-shield-1.21.8-*.jar
1.21.4	papyrus-shield-1.21.4-*.jar
1.21.1	papyrus-shield-1.21.1-*.jar

Place the jar in your instance mods/ folder alongside other Fabric mods.

Dev builds (CI)

1. Open Build Papyrus Client on GitHub Actions
2. Click the latest successful run on main
3. Download papyrus-client-macos-latest, papyrus-client-windows-2022, or papyrus-shield-<mc> (one artifact per Minecraft version)

Requirements

• Java 21+ for 1.21.x
• Java 25+ for 26.1.2
• Microsoft account owning Minecraft Java Edition
• Fabric Loader (installed automatically by Papyrus Client)

Next steps

• Installation — macOS .pkg setup and xattr guide
• Quick Start — Sign in and create an instance
• Server Configuration — Enable client integrity on Papyrus