Merge pull request #11702 from Carreau/old-docs

Bring back documentation from old 5.x series

docs/source/whatsnew/version5.rst

@@ -2,6 +2,12 b''
  5.x Series
 ============
 
+.. _whatsnew580:
+
+IPython 5.8.0
+=============
+
+* Update inspecting function/methods for future-proofing. :ghpull:`11139`
 
 .. _whatsnew570:
 
@@ -80,8 +86,10 b' Misc'
 You can see all the PR marked for the `5.5. milestone <https://github.com/ipython/ipython/pulls?q=is%3Apr%20milestone%3A5.5%20is%3Aclosed%20NOT%20%22Backport%20PR%22>`_,
 and all the `backport versions <https://github.com/ipython/ipython/pulls?utf8=%E2%9C%93&q=is%3Apr%20milestone%3A5.5%20is%3Aclosed%20%22Backport%20PR%22%20>`_.
 
-
-
+IPython 5.4.1
+=============
+Released a few hours after 5.4, fix a crash when
+``backports.shutil-get-terminal-size`` is not installed. :ghissue:`10629`
 
 .. _whatsnew540:
 
@@ -107,14 +115,13 b' that allow to customize the class used to start the terminal frontend. This'
 should allow user to use custom interfaces, like reviving the former readline
 interface which is now a separate package not maintained by the core team.
 
-
 Define ``_repr_mimebundle_``
 ----------------------------
 
 Object can now define `_repr_mimebundle_` in place of multiple `_repr_*_`
 methods and return a full mimebundle. This greatly simplify many implementation
 and allow to publish custom mimetypes (like geojson, plotly, dataframes....).
-See the ``Custom Display Logic`` example notebook for more information.
+See the ``Custom Display Logic`` example notebook for more informations.
 
 Execution Heuristics
 --------------------
@@ -436,5 +443,3 b' Known Issues:'
 
 - Color styles might not adapt to terminal emulator themes. This will need new
   version of Pygments to be released, and can be mitigated with custom themes.
-
-