diff --git a/.changeset/drop-dead-vos-version.md b/.changeset/drop-dead-vos-version.md
new file mode 100644
index 0000000..36048ea
--- /dev/null
+++ b/.changeset/drop-dead-vos-version.md
@@ -0,0 +1,5 @@
+---
+'@vosjs/core': patch
+---
+
+Drop the unused `VOS_VERSION` constant from compiled output. Every compiled module opened by declaring `const VOS_VERSION = <n>;` inside `initVos`, and nothing ever read it — not the runtime, not the bridge, not any consumer. The config's `version` field keeps its real job as the `migrateConfig` discriminator; only the dead emit goes.
diff --git a/packages/core/src/compiler/compileVosConfig.ts b/packages/core/src/compiler/compileVosConfig.ts
index 6e90add..0a505c1 100644
--- a/packages/core/src/compiler/compileVosConfig.ts
+++ b/packages/core/src/compiler/compileVosConfig.ts
@@ -74,8 +74,6 @@ export function compileVosConfig(
     throw new Error(`Invalid VosConfigJson:\n${issues}`)
   }
 
-  const version = result.data.version
-
   // Detect which addons are actually needed by scanning function strings
   const detectedAddons = detectRequiredAddons(config)
   // Declarative gltf objects need the loader even though no function string
@@ -222,7 +220,6 @@ ${utilEntries}
 
 
 export const initVos = async (container, deps) => {
-  const VOS_VERSION = ${version};
   const { THREE, gsap, resolution } = deps;
 
   // Input data exposed as ctx.data (runtime deps.data overrides baked config.data; never undefined).