Index: ps/trunk/binaries/data/mods/public/simulation/helpers/Commands.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/helpers/Commands.js
+++ ps/trunk/binaries/data/mods/public/simulation/helpers/Commands.js
@@ -710,16 +710,6 @@
 				continue;
 			}
 
-			if (!CanGarrisonedChangeTemplate(ent, cmd.template))
-			{
-				var cmpGUIInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
-				cmpGUIInterface.PushNotification({
-					"players": [player],
-					"message": markForTranslation("Cannot upgrade a garrisoned entity.")
-				});
-				continue;
-			}
-
 			// Check entity limits
 			var cmpEntityLimits = QueryPlayerIDInterface(player, IID_EntityLimits);
 			if (cmpEntityLimits && !cmpEntityLimits.AllowedToReplace(ent, cmd.template))
Index: ps/trunk/binaries/data/mods/public/simulation/helpers/Transform.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/helpers/Transform.js
+++ ps/trunk/binaries/data/mods/public/simulation/helpers/Transform.js
@@ -140,19 +140,6 @@
 	return newEnt;
 }
 
-function CanGarrisonedChangeTemplate(ent, template)
-{
-	var cmpPosition = Engine.QueryInterface(ent, IID_Position);
-	var unitAI = Engine.QueryInterface(ent, IID_UnitAI);
-	if (cmpPosition && !cmpPosition.IsInWorld() && unitAI && unitAI.IsGarrisoned())
-	{
-		// We're a garrisoned unit, assume impossibility as I've been unable to find a way to get the holder ID.
-		// TODO: change this if that ever becomes possibles
-		return false;
-	}
-	return true;
-}
-
 function CopyControlGroups(oldEnt, newEnt)
 {
 	let cmpObstruction = Engine.QueryInterface(oldEnt, IID_Obstruction);
@@ -277,5 +264,4 @@
 }
 
 Engine.RegisterGlobal("ChangeEntityTemplate", ChangeEntityTemplate);
-Engine.RegisterGlobal("CanGarrisonedChangeTemplate", CanGarrisonedChangeTemplate);
 Engine.RegisterGlobal("ObstructionsBlockingTemplateChange", ObstructionsBlockingTemplateChange);