updated changelog for v2.2.3

docs/changelog.rst

@@ -21,9 +21,24 @@ v2.3.0 (Not yet released)
 * The ``value()``  method of ``py::enum_`` now accepts an optional docstring
   that will be shown in the documentation of the associated enumeration.
 
-* Intel compilers have needed to be >= 17.0 since v2.1. Now the check
-  is explicit and a compile-time error is raised if the compiler does
-  not meet the requirements.
+v2.2.3 (April 29, 2018)
+-----------------------------------------------------
+
+* The pybind11 header location detection was replaced by a new implementation
+  that no longer depends on ``pip`` internals (the recently released ``pip``
+  10 has restricted access to this API).
+  `#1190 <https://github.com/pybind/pybind11/pull/1190>`_.
+
+* Small adjustment to an implementation detail to work around a compiler segmentation fault in Clang 3.3/3.4.
+  `#1350 <https://github.com/pybind/pybind11/pull/1350>`_.
+
+* The minimal supported version of the Intel compiler was >= 17.0 since
+  pybind11 v2.1. This check is now explicit, and a compile-time error is raised
+  if the compiler meet the requirement.
+  `#1363 <https://github.com/pybind/pybind11/pull/1363>`_.
+
+* Fixed an endianness-related fault in the test suite.
+  `#1287 <https://github.com/pybind/pybind11/pull/1287>`_.
 
 v2.2.2 (February 7, 2018)
 -----------------------------------------------------