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+- Reimplementation of the :tacn:`zify` tactic. The tactic is more efficient and copes with dependent hypotheses.
+ It can also be extended by redefining the tactic ``zify_post_hook``.
+ (`#9856 <https://github.com/coq/coq/pull/9856>`_ fixes
+ `#8898 <https://github.com/coq/coq/issues/8898>`_,
+ `#7886 <https://github.com/coq/coq/issues/7886>`_,
+ `#9848 <https://github.com/coq/coq/issues/9848>`_ and
+ `#5155 <https://github.com/coq/coq/issues/5155>`_, by Frédéric Besson).