Hash the server assembly from GetLoadedAssemblyPath on Unity 6.7 and later ServerMgr hashes Assembly-CSharp's file for the server's assembly hash and reports "il2cpp" when Assembly.Location is empty, which it is for any assembly loaded from an image rather than a file. Unity 6.7 adds GetLoadedAssemblyPath(), the path Unity loaded the assembly from, and the 6.7 and CoreCLR branch uses it here instead of Location. Hand-ported from the runtime part of unity_6.7.0's changeset 169806" class="changeset">169806 (10ce1f6a9e0, "Use new Unity APIs for GetAssemblies()"). The API doesn't exist in Unity 6.3, so the change sits behind UNITY_6000_7_OR_NEWER and main's 6.3 build is unchanged. The rest of 169806" class="changeset">169806 swaps AppDomain.GetAssemblies() for CurrentAssemblies.GetLoadedAssemblies() in editor tools and test helpers, which matters to the CoreCLR editor's assembly reloading; that arrives with 6.7 itself, and a guarded copy here would only conflict with it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>