diff --git a/pyo3-polars-derive/src/lib.rs b/pyo3-polars-derive/src/lib.rs
index 166708c..097196e 100644
--- a/pyo3-polars-derive/src/lib.rs
+++ b/pyo3-polars-derive/src/lib.rs
@@ -241,7 +241,7 @@ fn create_field_function(
 
                 match result {
                     Ok(out) => {
-                        let out = polars_core::export::arrow::ffi::export_field_to_c(&out.to_arrow(true));
+                        let out = polars_core::export::arrow::ffi::export_field_to_c(&out.to_arrow(CompatLevel::newest()));
                         *return_value = out;
                     },
                     Err(err) => {
@@ -278,7 +278,7 @@ fn create_field_function_from_with_dtype(
             let mapper = polars_plan::dsl::FieldsMapper::new(&inputs);
             let dtype = polars_core::datatypes::DataType::#dtype;
             let out = mapper.with_dtype(dtype).unwrap();
-            let out = polars_core::export::arrow::ffi::export_field_to_c(&out.to_arrow(true));
+            let out = polars_core::export::arrow::ffi::export_field_to_c(&out.to_arrow(CompatLevel::newest()));
             *return_value = out;
         }
     )
diff --git a/pyo3-polars/src/error.rs b/pyo3-polars/src/error.rs
index de46c4c..9a55bc6 100644
--- a/pyo3-polars/src/error.rs
+++ b/pyo3-polars/src/error.rs
@@ -36,12 +36,8 @@ impl std::convert::From<PyPolarsErr> for PyErr {
                 PolarsError::StringCacheMismatch(err) => {
                     StringCacheMismatchError::new_err(err.to_string())
                 }
-                PolarsError::SQLInterface(err) => {
-                    SQLInterface::new_err(err.to_string())
-                },
-                PolarsError::SQLSyntax(err) => {
-                    SQLSyntax::new_err(err.to_string())
-                }
+                PolarsError::SQLInterface(err) => SQLInterface::new_err(err.to_string()),
+                PolarsError::SQLSyntax(err) => SQLSyntax::new_err(err.to_string()),
                 PolarsError::Context { error, .. } => convert(error),
             }
         }
diff --git a/pyo3-polars/src/lib.rs b/pyo3-polars/src/lib.rs
index f2e4ca3..c627b48 100644
--- a/pyo3-polars/src/lib.rs
+++ b/pyo3-polars/src/lib.rs
@@ -170,10 +170,18 @@ impl IntoPy<PyObject> for PySeries {
         match s.getattr("_import_from_c") {
             // Go via polars
             Ok(import_from_c) => {
+                // Get supported compatibility level
+                let compat_level = CompatLevel::with_level(
+                    s.getattr("_newest_compat_level")
+                        .map_or(1, |newest_compat_level| {
+                            newest_compat_level.call0().unwrap().extract().unwrap()
+                        }),
+                )
+                .unwrap_or(CompatLevel::newest());
                 // Prepare pointers on the heap.
                 let mut chunk_ptrs = Vec::with_capacity(self.0.n_chunks());
                 for i in 0..self.0.n_chunks() {
-                    let array = self.0.to_arrow(i, true);
+                    let array = self.0.to_arrow(i, compat_level);
                     let schema = Box::leak(Box::new(arrow::ffi::export_field_to_c(
                         &ArrowField::new("", array.data_type().clone(), true),
                     )));
@@ -210,7 +218,7 @@ impl IntoPy<PyObject> for PySeries {
             Err(_) => {
                 let s = self.0.rechunk();
                 let name = s.name();
-                let arr = s.to_arrow(0, false);
+                let arr = s.to_arrow(0, CompatLevel::oldest());
                 let pyarrow = py.import_bound("pyarrow").expect("pyarrow not installed");
 
                 let arg = to_py_array(arr, py, pyarrow).unwrap();