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+++ b/doc/release/1.4.0-notes.rst
@@ -40,6 +40,28 @@ The following ufuncs have been added to the C API:
#. copysign - return the value of the first argument with the sign copied
from the second argument.
+New defines
+~~~~~~~~~~~
+
+The alpha processor is now defined and available in numpy/npy_cpu.h. The
+failed detection of the PARISC processor has been fixed. The defines are:
+
+ #. NPY_CPU_HPPA: PARISC
+ #. NPY_CPU_ALPHA: Alpha
+
+Enhancements
+~~~~~~~~~~~~
+
+ #. The sort functions now sort nans to the end.
+
+ * Real sort order is [R, nan]
+ * Complex sort order is [R + Rj, R + nanj, nan + Rj, nan + nanj]
+
+ Complex numbers with the same nan placements are sorted according to
+ the non-nan part if it exists.
+ #. Complex division has been made more resistent to overflow.
+ #. Complex floor division has been made more resistent to overflow.
+
Testing
~~~~~~~