8838.breaking.rst

As per our policy, the following features have been deprecated in the 6.X series and are now removed:

• pytest._fillfuncargs function.
• pytest_warning_captured hook - use pytest_warning_recorded instead.
• -k -foobar syntax - use -k 'not foobar' instead.
• -k foobar: syntax.
• pytest.collect module - import from pytest directly.

For more information consult Deprecations and Removals in the docs.