diff --git a/tests/conftest.py b/tests/conftest.py
index e72ec0ef8..0bbd1bf83 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -13,7 +13,7 @@ import textwrap
 import pytest
 
 # Early diagnostic for failed imports
-import pybind11_tests  # noqa: F401
+import pybind11_tests
 
 _long_marker = re.compile(r"([0-9])L")
 _hexadecimal = re.compile(r"0x[0-9a-fA-F]+")
@@ -196,5 +196,11 @@ def gc_collect():
 
 
 def pytest_configure():
+    print(
+        "PYBIND11_INTERNALS_ID & C++ Version:",
+        pybind11_tests.PYBIND11_INTERNALS_ID,
+        pybind11_tests.cpp_version_in_use,
+        flush=True,
+    )
     pytest.suppress = suppress
     pytest.gc_collect = gc_collect
diff --git a/tests/pybind11_tests.cpp b/tests/pybind11_tests.cpp
index 3c0469915..54355b06e 100644
--- a/tests/pybind11_tests.cpp
+++ b/tests/pybind11_tests.cpp
@@ -65,6 +65,9 @@ void bind_ConstructorStats(py::module_ &m) {
 PYBIND11_MODULE(pybind11_tests, m) {
     m.doc() = "pybind11 test module";
 
+    m.attr("cpp_version_in_use") = py::detail::cpp_version_in_use();
+    m.attr("PYBIND11_INTERNALS_ID") = PYBIND11_INTERNALS_ID;
+
     bind_ConstructorStats(m);
 
 #if defined(PYBIND11_DETAILED_ERROR_MESSAGES)