Minecraftプラグイン ViaRewind

🔌 About ViaRewind

ViaRewind is a plugin add-on for the ViaVersion project that restores compatibility for very old Java clients. It implements protocol translations so 1.7.x and 1.8.x clients can connect to newer server versions without changing the server version itself.

🎯 Purpose

The plugin's core purpose is legacy-client compatibility: it translates older protocol and data formats (blocks, entities, and other network-level changes) into the server's current protocol so ancient clients can join modern servers.

⚙️ Features

• Adds protocol translations for 1.7.x and 1.8.x clients to connect to newer server versions.
• Works as an add-on to ViaVersion and complements ViaBackwards where needed.
• Maintained with dev builds and official releases; builds are provided for multiple runtime targets (plugin and mod variants).
• Known limitations are documented by the project (for example: certain entity interactions such as boats and horses on older clients are not fully supported due to server-side changes).

🧩 Who It Is For

• Server owners who need to allow very old Java clients (1.7/1.8) to join a modern server.
• Public and private servers that want to keep a single up-to-date server binary while supporting legacy players.
• Network operators using ViaVersion and related Via* plugins/mods.

🏗️ Example Use Cases

• A survival server running a modern Spigot-derived server accepts connections from players still on 1.8 by installing ViaVersion + ViaBackwards + ViaRewind.
• A small community retains long-time players who have not updated their clients without maintaining a separate legacy server.

⚙️ Installation

📥 Setup

• Install ViaVersion and ViaBackwards alongside ViaRewind in the server's plugins/ directory (the project requires ViaVersion and ViaBackwards to function).
• Put the plugin JAR(s) into plugins/ and restart the server. Check server console logs to confirm the plugin loaded.
• The project provides builds for different targets (plugin/mod/proxy); use the build appropriate for your server environment.

📦 Dependencies

• ViaVersion (required)
• ViaBackwards (required)

🧠 Technical Notes

• The project maintains builds for multiple runtimes (Bukkit/Spigot-style plugins, Fabric mods, and proxy targets) and publishes releases on official project pages.
• The repository is open source and licensed under GPL-3.0.
• The authors publish releases and dev builds; building from source requires a JDK as documented in the repository.
• Known protocol/feature gaps exist for some legacy client behaviors that cannot be fully emulated without server source changes.

🤝 When This Plugin Is Useful

If you need to accept very old Java clients (1.7/1.8) on a modern server without running separate legacy servers, ViaRewind provides the protocol translations required when used together with ViaVersion and ViaBackwards.