diff --git a/Cargo.lock b/Cargo.lock
index cb64588..3d851d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -36,7 +36,7 @@ checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
 
 [[package]]
 name = "discrete_range_map"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "btree_monstrousity",
  "either",
diff --git a/Cargo.toml b/Cargo.toml
index fc267ce..40bd9a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "discrete_range_map"
-version = "0.4.0"
+version = "0.4.1"
 authors = ["James Forster <james.forsterer@gmail.com>"]
 edition = "2021"
 description = """
diff --git a/src/discrete_range_map.rs b/src/discrete_range_map.rs
index c7c70b9..71e61ff 100644
--- a/src/discrete_range_map.rs
+++ b/src/discrete_range_map.rs
@@ -483,12 +483,6 @@ where
 	{
 		invalid_range_panic(range);
 
-		//optimisation, switch to BTreeMap::drain_range if it ever gets
-		//implemented
-		//return self
-		//.inner
-		//.drain_filter(move |inner_range, _| overlaps(*inner_range, range));
-
 		let mut result = Vec::new();
 
 		let mut leftmost_cursor = self.inner.lower_bound_mut(