diff --git a/docs/1_5_0.md b/docs/1_5_0.md
index 78cd4b1c..2c7fc665 100644
--- a/docs/1_5_0.md
+++ b/docs/1_5_0.md
@@ -174,3 +174,8 @@ If you want to use them, for example, you want to call `breakpoint()` or `import
 !!!
 Enabling the profiler has a performance overhead. Only enable it when you need it.
 !!!
+
+## Type checking functions
+
++ `vm->is_non_tagged_type` was removed. Use `vm->is_type` instead.
++ `vm->check_non_tagged_type` was removed. Use `vm->check_type` instead.
\ No newline at end of file