diff --git a/CMakeLists.txt b/CMakeLists.txt
index 67836fb..41d9694 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 include(cmake/color.cmake)
-set(BLT_VERSION 2.1.8)
+set(BLT_VERSION 2.1.9)
 
 set(BLT_TARGET BLT)
 
diff --git a/cloc.sh b/cloc.sh
old mode 100755
new mode 100644
diff --git a/commit.py.save b/commit.py.save
old mode 100755
new mode 100644
diff --git a/include/blt/std/binary_tree.h b/include/blt/std/binary_tree.h
index d8038fd..c570516 100644
--- a/include/blt/std/binary_tree.h
+++ b/include/blt/std/binary_tree.h
@@ -288,26 +288,6 @@ namespace blt
                 }
                 return {};
             }
-            
-            std::optional<V> search_min(const K& min)
-            {
-                auto point = nodes.begin();
-                while (point != nodes.end())
-                {
-                    if (point->children == 0)
-                        return {};
-                    auto parent = point;
-                    ++point;
-                    auto is_min = point->k < parent->k;
-                    if (k >= parent->k)
-                    {
-                        if (is_min)
-                            point = skip_children(point);
-                    }
-                    
-                }
-                return {};
-            }
         
         private:
             auto skip_children(typename std::vector<node_t>::iterator begin)
diff --git a/py_commit_helper.sh b/py_commit_helper.sh
old mode 100755
new mode 100644