diff --git a/CMakeLists.txt b/CMakeLists.txt
index e862ccb..840e628 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@ macro(compile_options target_name)
     sanitizers(${target_name})
 endmacro()
 
-project(blt-gp VERSION 0.3.16)
+project(blt-gp VERSION 0.3.17)
 
 include(CTest)
 
diff --git a/include/blt/gp/stack.h b/include/blt/gp/stack.h
index 5259394..2bb8947 100644
--- a/include/blt/gp/stack.h
+++ b/include/blt/gp/stack.h
@@ -42,7 +42,7 @@ namespace blt::gp
     namespace detail
     {
         BLT_META_MAKE_FUNCTION_CHECK(drop);
-        BLT_META_MAKE_FUNCTION_CHECK(drop_ephemeral);
+        // BLT_META_MAKE_FUNCTION_CHECK(drop_ephemeral);
     }
 
     class stack_allocator
@@ -87,7 +87,7 @@ namespace blt::gp
         static constexpr size_t aligned_size() noexcept
         {
             const auto bytes = detail::aligned_size(sizeof(NO_REF_T<T>));
-            if constexpr (blt::gp::detail::has_func_drop_ephemeral_v<T>)
+            if constexpr (blt::gp::detail::has_func_drop_v<T>)
                 return bytes + sizeof(std::atomic_uint64_t*);
             return bytes;
         }
diff --git a/lib/blt b/lib/blt
index 2e6abb8..1aa7f12 160000
--- a/lib/blt
+++ b/lib/blt
@@ -1 +1 @@
-Subproject commit 2e6abb8013a622771330c17f0d938db5f672f12b
+Subproject commit 1aa7f12c0f0b6d910d4baef51bb530a819663a3d
diff --git a/tests/drop_test.cpp b/tests/drop_test.cpp
index 6c2115e..08009a9 100644
--- a/tests/drop_test.cpp
+++ b/tests/drop_test.cpp
@@ -49,16 +49,12 @@ struct drop_type
 
     void drop() const
     {
-        if (!ephemeral)
+        if (ephemeral)
+            ++ephemeral_drop;
+        else
             ++normal_drop;
     }
 
-    void drop_ephemeral() const
-    {
-        // BLT_TRACE("Wow silly type of value %f was dropped!", value);
-        ++ephemeral_drop;
-    }
-
     friend std::ostream& operator<<(std::ostream& os, const drop_type& dt)
     {
         os << dt.value;
@@ -127,11 +123,6 @@ bool fitness_function(const tree_t& current_tree, fitness_t& fitness, size_t)
 
 int main()
 {
-    int hello = 32;
-    int* silly = &hello;
-    blt::mem::print_bytes(std::cout, silly);
-    return 0;
-
     operator_builder<context> builder{};
     builder.build(add, sub, mul, pro_div, op_sin, op_cos, op_exp, op_log, lit, op_x);
     regression.get_program().set_operations(builder.grab());