diff --git a/pip/README.md b/pip/README.md
index 0e25e676..b53c5883 100644
--- a/pip/README.md
+++ b/pip/README.md
@@ -79,7 +79,6 @@ void @__quantum__qis__z__ctl(%Array*, %Qubit*)
 %Array* @__quantum__rt__array_create_1d(i32, i64)
 i8* @__quantum__rt__array_get_element_ptr_1d(%Array*, i64)
 i64 @__quantum__rt__array_get_size_1d(%Array*)
-%Array* @__quantum__rt__array_slice_1d(%Array*, %Range, i1)
 void @__quantum__rt__array_record_output(i64, i8*)
 void @__quantum__rt__array_update_alias_count(%Array*, i32)
 void @__quantum__rt__array_update_reference_count(%Array*, i32)
@@ -130,7 +129,6 @@ void @__quantum__rt__message_record_output(%String*)
 void @__quantum__rt__qubit_release(%Qubit*)
 void @__quantum__rt__qubit_release_array(%Array*)
 %String* @__quantum__rt__qubit_to_string(%Qubit*)
-%String* @__quantum__rt__range_to_string(%Range)
 bool @__quantum__rt__result_equal(%Result*, %Result*)
 %Result* @__quantum__rt__result_get_one()
 %Result* @__quantum__rt__result_get_zero()
diff --git a/pip/pyproject.toml b/pip/pyproject.toml
index 1fd5cb8e..9b8b2fa6 100644
--- a/pip/pyproject.toml
+++ b/pip/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "qirrunner"
-version = "0.10.0"
+version = "0.6.0"
 requires-python = ">= 3.8"
 classifiers = [
     "License :: OSI Approved :: MIT License",
diff --git a/runner/README.md b/runner/README.md
index 0e25e676..b53c5883 100644
--- a/runner/README.md
+++ b/runner/README.md
@@ -79,7 +79,6 @@ void @__quantum__qis__z__ctl(%Array*, %Qubit*)
 %Array* @__quantum__rt__array_create_1d(i32, i64)
 i8* @__quantum__rt__array_get_element_ptr_1d(%Array*, i64)
 i64 @__quantum__rt__array_get_size_1d(%Array*)
-%Array* @__quantum__rt__array_slice_1d(%Array*, %Range, i1)
 void @__quantum__rt__array_record_output(i64, i8*)
 void @__quantum__rt__array_update_alias_count(%Array*, i32)
 void @__quantum__rt__array_update_reference_count(%Array*, i32)
@@ -130,7 +129,6 @@ void @__quantum__rt__message_record_output(%String*)
 void @__quantum__rt__qubit_release(%Qubit*)
 void @__quantum__rt__qubit_release_array(%Array*)
 %String* @__quantum__rt__qubit_to_string(%Qubit*)
-%String* @__quantum__rt__range_to_string(%Range)
 bool @__quantum__rt__result_equal(%Result*, %Result*)
 %Result* @__quantum__rt__result_get_one()
 %Result* @__quantum__rt__result_get_zero()
diff --git a/stdlib/include/qir_stdlib.def b/stdlib/include/qir_stdlib.def
index 1ac72dc7..288d5d7a 100644
--- a/stdlib/include/qir_stdlib.def
+++ b/stdlib/include/qir_stdlib.def
@@ -15,7 +15,6 @@ EXPORTS
     __quantum__rt__array_concatenate
     __quantum__rt__array_get_size_1d
     __quantum__rt__array_get_element_ptr_1d
-    __quantum__rt__array_slice_1d
     __quantum__rt__callable_create
     __quantum__rt__callable_update_reference_count
     __quantum__rt__callable_update_alias_count
@@ -33,7 +32,6 @@ EXPORTS
     __quantum__rt__double_to_string
     __quantum__rt__bool_to_string
     __quantum__rt__pauli_to_string
-    __quantum__rt__range_to_string
     __quantum__rt__string_get_data
     __quantum__rt__string_get_length
     __quantum__rt__tuple_create