diff --git a/Assets/_Project/Scripts/UI/HUDController.cs b/Assets/_Project/Scripts/UI/HUDController.cs
index e7ebada..eb08e33 100644
--- a/Assets/_Project/Scripts/UI/HUDController.cs
+++ b/Assets/_Project/Scripts/UI/HUDController.cs
@@ -697,12 +697,6 @@ namespace TD.UI
                     i++;
                 }
             }
-            else if (selection is TowerInstance tower)
-            {
-                // WC3 layout convention: primary action top-left (Q), sell bottom-right (B).
-                cells[0]            = CreateUpgradeButton(tower, HotkeyLayout[0]);
-                cells[GRID_MAX - 1] = CreateSellButton(tower, HotkeyLayout[GRID_MAX - 1]);
-            }
             else if (selection is BuildSiteVisual bsv)
             {
                 // Cancel is the only action available on an in-progress build.
@@ -795,31 +789,7 @@ namespace TD.UI
             return btn;
         }
 
-        // Upgrade and Sell — visuals + hotkeys wired; click is a no-op because the
-        // upgrade/sell systems aren't built yet. Buttons are SetEnabled(false) so the
-        // hotkey handler also skips them (it gates on enabledSelf).
-        private VisualElement CreateUpgradeButton(TowerInstance tower, Key hotkey)
-        {
-            var btn = CreateActionButton(
-                costText: "",      // tier cost unknown until upgrade system lands
-                hotkey:   hotkey,
-                onClick:  () => { /* TODO: upgrade flow */ });
-            btn.SetEnabled(false);
-            return btn;
-        }
 
-        private VisualElement CreateSellButton(TowerInstance tower, Key hotkey)
-        {
-            int sellValue = tower.Definition != null
-                ? Mathf.RoundToInt(tower.Definition.GoldCost * 0.7f)
-                : 0;
-            var btn = CreateActionButton(
-                costText: sellValue > 0 ? $"+{sellValue}g" : "",
-                hotkey:   hotkey,
-                onClick:  () => { /* TODO: sell flow */ });
-            btn.SetEnabled(false);
-            return btn;
-        }
 
         // Cancel action for an in-progress build. Fires the owner-only RPC; the
         // server cancels the matching job (or, for shelved sites, refunds + despawns
diff --git a/Packages/manifest.json b/Packages/manifest.json
index 5b70fbf..541a381 100644
--- a/Packages/manifest.json
+++ b/Packages/manifest.json
@@ -12,11 +12,12 @@
     "com.unity.netcode.gameobjects": "2.11.0",
     "com.unity.probuilder": "6.0.9",
     "com.unity.render-pipelines.universal": "17.4.0",
-    "com.unity.sdk.linux-x86_64": "1.0.2",
+    "com.unity.sdk.linux-x86_64": "1.1.0",
     "com.unity.services.multiplayer": "2.1.3",
     "com.unity.terrain-tools": "5.3.2",
     "com.unity.test-framework": "1.6.0",
     "com.unity.timeline": "1.8.12",
+    "com.unity.toolchain.linux-x86_64-linux": "1.1.0",
     "com.unity.toolchain.win-x86_64-linux": "1.0.2",
     "com.unity.ugui": "2.0.0",
     "com.unity.visualscripting": "1.9.11",
diff --git a/Packages/packages-lock.json b/Packages/packages-lock.json
index 499be20..ca389ce 100644
--- a/Packages/packages-lock.json
+++ b/Packages/packages-lock.json
@@ -221,11 +221,11 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.sdk.linux-x86_64": {
-      "version": "1.0.2",
+      "version": "1.1.0",
       "depth": 0,
       "source": "registry",
       "dependencies": {
-        "com.unity.sysroot.base": "1.0.2"
+        "com.unity.sysroot.base": "1.1.0"
       },
       "url": "https://packages.unity.com"
     },
@@ -355,7 +355,7 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.sysroot.base": {
-      "version": "1.0.2",
+      "version": "1.1.0",
       "depth": 1,
       "source": "registry",
       "dependencies": {},
@@ -403,6 +403,15 @@
       },
       "url": "https://packages.unity.com"
     },
+    "com.unity.toolchain.linux-x86_64-linux": {
+      "version": "1.1.0",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.sysroot.base": "1.1.0"
+      },
+      "url": "https://packages.unity.com"
+    },
     "com.unity.toolchain.win-x86_64-linux": {
       "version": "1.0.2",
       "depth": 0,
diff --git a/ProjectSettings/Packages/com.unity.probuilder/Settings.json b/ProjectSettings/Packages/com.unity.probuilder/Settings.json
index ebf0b37..c41e711 100644
--- a/ProjectSettings/Packages/com.unity.probuilder/Settings.json
+++ b/ProjectSettings/Packages/com.unity.probuilder/Settings.json
@@ -71,11 +71,6 @@
                 "key": "editor.showSceneInfo",
                 "value": "{\"m_Value\":false}"
             },
-            {
-                "type": "System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089",
-                "key": "editor.stripProBuilderScriptsOnBuild",
-                "value": "{\"m_Value\":true}"
-            },
             {
                 "type": "UnityEngine.Material, UnityEngine.CoreModule, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null",
                 "key": "mesh.userMaterial",