diff --git a/src/p_mobj.c b/src/p_mobj.c
index 565ef6fbd..325229de8 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -10650,6 +10650,10 @@ mobj_t *P_SpawnMobj(fixed_t x, fixed_t y, fixed_t z, mobjtype_t type)
 				}
 			}
 			break;
+		case MT_BOSS3WAYPOINT:
+			// Remove before release
+			CONS_Alert(CONS_WARNING, "Boss waypoints are deprecated. Did you forget to remove the old checkpoints, too?\n");
+			break;
 		default:
 			break;
 	}
diff --git a/src/p_spec.c b/src/p_spec.c
index 0af99f163..8e368d710 100644
--- a/src/p_spec.c
+++ b/src/p_spec.c
@@ -5801,6 +5801,8 @@ void P_SpawnSpecials(INT32 fromnetsave)
 		switch(GETSECSPECIAL(sector->special, 4))
 		{
 			case 10: // Circuit finish line (Unused)
+				// Remove before release
+				CONS_Alert(CONS_WARNING, "Finish line sector type is deprecated.\n");
 				break;
 		}
 	}