OpenSSL 4.0 is in experimental. This package fails to build against it:

| ============================= test session starts ==============================
| platform linux -- Python 3.14.4, pytest-9.0.3, pluggy-1.6.0
| rootdir: /build/reproducible-path/requests-2.32.5+dfsg/.pybuild/cpython3_3.14_requests/build
| configfile: pyproject.toml
| plugins: typeguard-4.4.4, httpbin-2.1.0, mock-3.15.1
| collected 611 items / 168 deselected / 443 selected
|
| tests/test_adapters.py .                                                 [  0%]
| tests/test_help.py ...                                                   [  0%]
| tests/test_hooks.py ...                                                  [  1%]
| tests/test_lowlevel.py ...........                                       [  4%]
| tests/test_packages.py ...                                               [  4%]
| tests/test_requests.py ................................................. [ 15%]
| .......s................................................................ [ 32%]
| ........................................................................ [ 48%]
| ............F....                                                        [ 52%]
| tests/test_structures.py ....................                            [ 56%]
| tests/test_testserver.py ......s....                                     [ 59%]
| tests/test_utils.py ..s................................................. [ 70%]
| ........................................................................ [ 87%]
| .............................................ssssssssssss                [100%]
|
| =================================== FAILURES ===================================
| _ TestPreparingURLs.test_different_connection_pool_for_tls_settings_verify_bundle_unexpired_cert _


Full buildlog
https://breakpoint.cc/openssl-rebuild/logs-4/attempted/requests_2.32.5+dfsg-1_amd64-2026-04-19T11:59:40Z

Sebastian