MAINT: Add release notes for __[gs]etslice__ removal

1 files changed, 11 insertions, 0 deletions

diff --git a/doc/release/1.13.0-notes.rst b/doc/release/1.13.0-notes.rst
index ac4d4b2c1..c70568821 100644
--- a/doc/release/1.13.0-notes.rst
+++ b/doc/release/1.13.0-notes.rst
@@ -65,6 +65,17 @@ implement ``__len__`` as the number of record fields, ``bool`` of scalar dtypes
 would evaluate to ``False``, which was unintuitive. Now ``bool(dtype) == True``
 for all dtypes.
 
+``__getslice__`` and ``__setslice__`` have been removed from ``ndarray``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+When subclassing np.ndarray in Python 2.7, it is no longer _necessary_ to
+implement ``__*slice__`` on the derived class, as ``__*item__`` will intercept
+these calls correctly.
+
+Any code that did implement these will work exactly as before, with the
+obvious exception of any code that tries to directly call
+``ndarray.__getslice__`` (e.g. through ``super(...).__getslice__``). In
+this case, ``.__getitem__(slice(start, end))`` will act as a replacement.
+
 
 C API
 ~~~~~