DOC start section for the 0.20.1 bugfix notes
.. currentmodule:: sklearn
+.. _changes_0_20_1:
+
+Version 0.20.1
+==============
+
+**October XX, 2018**
+
+This is a bug-fix release with some minor documentation improvements and
+enhancements to features released in 0.20.0.
+
+- |Efficiency| make :class:`cluster.MeanShift` no longer try to do nested
+ parallelism as the overhead would hurt performance significantly when
+ ``n_jobs > 1``.
+ :issue:`12159` by :user:`Olivier Grisel <ogrisel>`.
+
+- |Fix| :func:`linear_model.SGDClassifier` and variants
+ with ``early_stopping=True`` would not use a consistent validation
+ split in the multiclass case and this would cause a crash when using
+ those estimators as part of parallel parameter search or cross-validation.
+ :issue:`12122` by :user:`Olivier Grisel <ogrisel>`.
+
.. _changes_0_20:
Version 0.20.0
