diff --git a/pyo3-benches/benches/bench_comparisons.rs b/pyo3-benches/benches/bench_comparisons.rs
index dd08558b148..7ce87b1506d 100644
--- a/pyo3-benches/benches/bench_comparisons.rs
+++ b/pyo3-benches/benches/bench_comparisons.rs
@@ -47,11 +47,11 @@ fn bench_ordered_dunder_methods(b: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let obj1 = Py::new(py, OrderedDunderMethods(0))
             .unwrap()
-            .attach_into(py)
+            .into_bound(py)
             .into_any();
         let obj2 = Py::new(py, OrderedDunderMethods(1))
             .unwrap()
-            .attach_into(py)
+            .into_bound(py)
             .into_any();
 
         b.iter(|| obj2.gt(&obj1).unwrap());
@@ -62,11 +62,11 @@ fn bench_ordered_richcmp(b: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let obj1 = Py::new(py, OrderedRichcmp(0))
             .unwrap()
-            .attach_into(py)
+            .into_bound(py)
             .into_any();
         let obj2 = Py::new(py, OrderedRichcmp(1))
             .unwrap()
-            .attach_into(py)
+            .into_bound(py)
             .into_any();
 
         b.iter(|| obj2.gt(&obj1).unwrap());
diff --git a/pyo3-benches/benches/bench_dict.rs b/pyo3-benches/benches/bench_dict.rs
index 19438d7f71e..13ef0591f6b 100644
--- a/pyo3-benches/benches/bench_dict.rs
+++ b/pyo3-benches/benches/bench_dict.rs
@@ -1,6 +1,6 @@
 use codspeed_criterion_compat::{criterion_group, criterion_main, Bencher, Criterion};
 
-use pyo3::types::{IntoPyDict, PyDict};
+use pyo3::types::IntoPyDict;
 use pyo3::{prelude::*, types::PyMapping};
 use std::collections::{BTreeMap, HashMap};
 
@@ -11,7 +11,7 @@ fn iter_dict(b: &mut Bencher<'_>) {
         let dict = &dict.as_borrowed();
         let mut sum = 0;
         b.iter(|| {
-            for (k, _v) in dict {
+            for (k, _v) in dict.iter() {
                 let i: u64 = k.extract().unwrap();
                 sum += i;
             }
diff --git a/pyo3-benches/benches/bench_extract.rs b/pyo3-benches/benches/bench_extract.rs
index b8db162cb47..83941eac97c 100644
--- a/pyo3-benches/benches/bench_extract.rs
+++ b/pyo3-benches/benches/bench_extract.rs
@@ -52,7 +52,7 @@ fn extract_str_downcast_fail(bench: &mut Bencher<'_>) {
 fn extract_int_extract_success(bench: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let int_obj: PyObject = 123.into_py(py);
-        let int = int_obj.attach(py);
+        let int = int_obj.bind(py);
 
         bench.iter(|| {
             let v = black_box(int).extract::<i64>().unwrap();
@@ -76,7 +76,7 @@ fn extract_int_extract_fail(bench: &mut Bencher<'_>) {
 fn extract_int_downcast_success(bench: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let int_obj: PyObject = 123.into_py(py);
-        let int = int_obj.attach(py);
+        let int = int_obj.bind(py);
 
         bench.iter(|| {
             let py_int = black_box(int).downcast::<PyInt>().unwrap();
@@ -101,7 +101,7 @@ fn extract_int_downcast_fail(bench: &mut Bencher<'_>) {
 fn extract_float_extract_success(bench: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let float_obj: PyObject = 23.42.into_py(py);
-        let float = float_obj.attach(py);
+        let float = float_obj.bind(py);
 
         bench.iter(|| {
             let v = black_box(float).extract::<f64>().unwrap();
@@ -125,7 +125,7 @@ fn extract_float_extract_fail(bench: &mut Bencher<'_>) {
 fn extract_float_downcast_success(bench: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let float_obj: PyObject = 23.42.into_py(py);
-        let float = float_obj.attach(py);
+        let float = float_obj.bind(py);
 
         bench.iter(|| {
             let py_int = black_box(float).downcast::<PyFloat>().unwrap();
diff --git a/pyo3-benches/benches/bench_frompyobject.rs b/pyo3-benches/benches/bench_frompyobject.rs
index 8114ee5a802..2bba0d0a12a 100644
--- a/pyo3-benches/benches/bench_frompyobject.rs
+++ b/pyo3-benches/benches/bench_frompyobject.rs
@@ -62,7 +62,7 @@ fn not_a_list_via_extract_enum(b: &mut Bencher<'_>) {
     Python::with_gil(|py| {
         let any: &Bound<'_, PyAny> = &PyString::new_bound(py, "foobar");
 
-        b.iter(|| match black_box(any).extract::<ListOrNotList<'_>>() {
+        b.iter(|| match black_box(&any).extract::<ListOrNotList<'_>>() {
             Ok(ListOrNotList::List(_list)) => panic!(),
             Ok(ListOrNotList::NotList(any)) => any,
             Err(_) => panic!(),
diff --git a/pytests/src/pyfunctions.rs b/pytests/src/pyfunctions.rs
index 5629441c3a5..09d9468f925 100644
--- a/pytests/src/pyfunctions.rs
+++ b/pytests/src/pyfunctions.rs
@@ -4,9 +4,9 @@ use pyo3::types::{PyDict, PyTuple};
 #[pyfunction(signature = ())]
 fn none() {}
 
-type Any<'py> = Py2<'py, pyo3::PyAny>;
-type Dict<'py> = Py2<'py, PyDict>;
-type Tuple<'py> = Py2<'py, PyTuple>;
+type Any<'py> = Bound<'py, pyo3::PyAny>;
+type Dict<'py> = Bound<'py, PyDict>;
+type Tuple<'py> = Bound<'py, PyTuple>;
 
 #[pyfunction(signature = (a, b = None, *, c = None))]
 fn simple<'py>(