diff --git a/README.md b/README.md
index 45a54ee..cc00d81 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,9 @@ Minimalist Minecraft server for memory-restrictive embedded systems.
 
 The goal of this project is to enable hosting Minecraft servers on very weak devices, such as the ESP32. The project's priorities are, in order: **memory usage**, **performance**, and **features**. Because of this, compliance with vanilla Minecraft is not guaranteed, nor is it a goal of the project.
 
+- Minecraft version: `1.21.8`
+- Protocol version: `772`
+
 ## Quick start
 For PC x86_64 platforms, grab the [latest build binary](https://github.com/p2r3/bareiron/releases/download/latest/bareiron.exe) and run it. The file is a [Cosmopolitan polyglot](https://github.com/jart/cosmopolitan), which means it'll run on Windows, Linux, and possibly Mac, despite the file extension.