diff --git a/README.md b/README.md
index 3c1f569..3970942 100644
--- a/README.md
+++ b/README.md
@@ -27,11 +27,11 @@ A C++17 / Windows desktop application providing a **Maya Render Layers-style** U
 
 ### Optional Render Delegates
 
-| Delegate | Variable | Notes |
-|---|---|---|
-| **hdEmbree** | `HDEMBREE_USD_ROOT` | USD build with `PXR_ENABLE_EMBREE_PLUGIN=ON`; set `EMBREE_LOCATION` if embree DLLs are not in `HDEMBREE_USD_ROOT/bin` |
-| **hdArnold** | `HDARNOLD_ROOT`, `ARNOLD_LOCATION` | [arnold-usd](https://github.com/Autodesk/arnold-usd) install dir + MtoA root for `ai.dll` |
-| **hdCycles** | `WITH_CYCLES=ON` | Built from source under `third_party/cycles` via ExternalProject; requires MSVC |
+| Delegate | Renderer Version | Variable | Notes |
+|---|---|---|---|
+| **hdEmbree** | Embree 4.4.1 | `HDEMBREE_USD_ROOT` | USD build with `PXR_ENABLE_EMBREE_PLUGIN=ON`; set `EMBREE_LOCATION` if Embree DLLs are not in `HDEMBREE_USD_ROOT/bin` |
+| **hdArnold** | Arnold 7.4.0 (MtoA 5.5.0) | `HDARNOLD_ROOT`, `ARNOLD_LOCATION` | [arnold-usd](https://github.com/Autodesk/arnold-usd) install dir + MtoA root for `ai.dll` |
+| **hdCycles** | Cycles 5.2.0 | `WITH_CYCLES=ON` | Built from source under `third_party/cycles` via ExternalProject; requires MSVC |
 
 All delegate paths are pre-configured in `CMakePresets.json`.