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+- **Deprecated:**
+  The library files
+
+  * ``Coq.Numbers.Integer.Binary.ZBinary``
+  * ``Coq.Numbers.Integer.NatPairs.ZNatPairs``
+  * ``Coq.Numbers.Natural.Binary.NBinary``
+
+  have been deprecated.
+  Users should require ``Coq.Arith.PeanoNat`` or ``Coq.Arith.NArith.BinNat``
+  if they want implementations of natural numbers and
+  ``Coq.Arith.ZArith.BinInt`` if they want an implementation of integers.
+  (`#18500 <https://github.com/coq/coq/pull/18500>`_,
+  by Pierre Rousselin).