1Backward Compatibility 2====================== 3 4pyOpenSSL has a very strong backward compatibility policy. 5Generally speaking, you shouldn't ever be afraid of updating. 6 7If breaking changes are needed do be done, they are: 8 9#. …announced in the :doc:`changelog`. 10#. …the old behavior raises a :exc:`DeprecationWarning` for a year. 11#. …are done with another announcement in the :doc:`changelog`. 12