Add release notes for 6.3

docs/source/whatsnew/github-stats-6.rst

@@ -1,10 +1,58 b''
 Issues closed in the 6.x development cycle
 ==========================================
 
-Issues closed in 6.2
+Issues closed in 6.3
 --------------------
 
 
+GitHub stats for 2017/09/15 - 2018/04/02 (tag: 6.2.0)
+
+These lists are automatically generated, and may be incomplete or contain duplicates.
+
+We closed 10 issues and merged 50 pull requests.
+The full list can be seen `on GitHub <https://github.com/ipython/ipython/issues?q=milestone%3A6.3>`__
+
+The following 35 authors contributed 253 commits.
+
+* Anatoly Techtonik
+* Antony Lee
+* Benjamin Ragan-Kelley
+* Corey McCandless
+* Craig Citro
+* Cristian Ciupitu
+* David Cottrell
+* David Straub
+* Doug Latornell
+* Fabio Niephaus
+* Gergely Nagy
+* Henry Fredrick Schreiner
+* Hugo
+* Ismael Venegas Castelló
+* Ivan Gonzalez
+* J Forde
+* Jeremy Sikes
+* Joris Van den Bossche
+* Lesley Cordero
+* luzpaz
+* madhu94
+* Matthew R. Scott
+* Matthias Bussonnier
+* Matthias Geier
+* Olesya Baranova
+* Peter Williams
+* Rastislav Barlik
+* Roshan Rao
+* rs2
+* Samuel Lelièvre
+* Shailyn javier Ortiz jimenez
+* Sjoerd de Vries
+* Teddy Rendahl
+* Thomas A Caswell
+* Thomas Kluyver
+
+Issues closed in 6.2
+--------------------
+
 GitHub stats for 2017/05/31 - 2017/09/15 (tag: 6.1.0)
 
 These lists are automatically generated, and may be incomplete or contain duplicates.

docs/source/whatsnew/version6.rst

@@ -3,6 +3,33 b''
 ============
 
 
+.. _whatsnew630:
+
+IPython 6.3
+===========
+
+IPython 6.3 contains all the bug fixes and features in
+:ref:`IPython 5.6 <whatsnew560>`. In addition:
+
+* A new display class :class:`IPython.display.Code` can be used to display
+  syntax highlighted code in a notebook (:ghpull:`10978`).
+* The :cellmagic:`html` magic now takes a ``--isolated`` option to put the
+  content in an iframe (:ghpull:`10962`).
+* The code to find completions using the Jedi library has had various
+  adjustments. This is still a work in progress, but we hope this version has
+  fewer annoyances (:ghpull:`10956`, :ghpull:`10969`, :ghpull:`10999`,
+  :ghpull:`11035`, :ghpull:`11063`, :ghpull:`11065`).
+* The *post* event callbacks are now always called, even when the execution failed
+  (for example because of a ``SyntaxError``).
+* The execution info and result objects are now made available in the
+  corresponding *pre* or *post* ``*_run_cell`` :doc:`event callbacks </config/callbacks>`
+  in a backward compatible manner (:ghissue:`10774` and :ghpull:`10795`).
+* Performance with very long code cells (hundreds of lines) is greatly improved
+  (:ghpull:`10898`). Further improvements are planned for IPython 7.
+
+You can see all `pull requests for the 6.3 milestone
+<https://github.com/ipython/ipython/pulls?utf8=%E2%9C%93&q=is%3Apr+milestone%3A6.3+is%3Aclosed>`__.
+
 .. _whatsnew620:
 
 IPython 6.2

tools/github_stats.py

@@ -212,7 +212,7 b' if __name__ == "__main__":'
 
     print("We closed %d issues and merged %d pull requests." % (n_issues, n_pulls))
     if milestone:
-        print("The full list can be seen `on GitHub <https://github.com/{project}/issues?q=milestone%3A{milestone}+>`__".format(project=project,milestone=milestone)
+        print("The full list can be seen `on GitHub <https://github.com/{project}/issues?q=milestone%3A{milestone}>`__".format(project=project,milestone=milestone)
         )
     
     print()