diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2603336..d6a1ddf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,7 +28,7 @@ jobs:
         7z a program.zip .\foo\*
 
     - name: Make artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: program
         path: editor\foo\*
diff --git a/editor/Cartridge.cs b/editor/Cartridge.cs
index 3056d18..0dbd444 100644
--- a/editor/Cartridge.cs
+++ b/editor/Cartridge.cs
@@ -2755,7 +2755,6 @@ private void ReadAssets()
                             _assetsLookup[asset] = palette;
                             item.Palettes.Add(part.Name, palette);
                             item.PaletteEditable = !asset.Hidden; // Hidden only applies to palettes for now...
-                            // TODO we don't handle multiple palettes here yet
                             break;
                         case Game.Asset.Types.ForegroundTileMap:
                             // We assume these are set first