update news

Author: josesho

docs/source/index.rst

@@ -18,31 +18,34 @@ Analyze your data with estimation statistics!
 
 News
 ----
+October 2020:
+  - v0.3.1 released. The minimal versions of dependencies have been upgraded. Also, the minimal version of Python required is now 3.5.
+
 January 2020:
  - v0.3.0 released. Approximate permutation tests have been added, and are now the default p-values reported in the textual output. The LqRT tests were also refactored to a user-callable property. For more information, see the :doc:`release-notes`.
 
 December 2019:
-  - v0.2.8 released. This release adds the `Lq-Likelihood-Ratio-Type Test <https://github.com/alyakin314/lqrt>`_ in the statistical output, and also a bugfix for  slopegraph and reference line keyword parsing. 
+  - v0.2.8 released. This release adds the `Lq-Likelihood-Ratio-Type Test <https://github.com/alyakin314/lqrt>`_ in the statistical output, and also a bugfix for  slopegraph and reference line keyword parsing.
 
 October 2019:
-  - v0.2.7 released. A minor bugfix in the handling of wide datasets with unequal Ns in each group. 
-  - v0.2.6 released. This release has one new feature (plotting of estimation plot inside any :py:mod:`matplotlib` :py:class:`Axes`; see the section on :ref:`inset plot` in the :doc:`tutorial`). There are also two bug patches for the handling of bootstrap plotting, and of dependency installation. 
+  - v0.2.7 released. A minor bugfix in the handling of wide datasets with unequal Ns in each group.
+  - v0.2.6 released. This release has one new feature (plotting of estimation plot inside any :py:mod:`matplotlib` :py:class:`Axes`; see the section on :ref:`inset plot` in the :doc:`tutorial`). There are also two bug patches for the handling of bootstrap plotting, and of dependency installation.
 
 September 2019:
   - v0.2.5 released. This release addresses two feature requests, and also patches two bugs: one affecting the paired difference CIs, and one involving NaNs in unused/irrelevant columns.
 
 May 2019:
-  - v0.2.4 released. This is a patch for a set of bugs that mis-aligned Gardner-Altman plots, and also adds the capability to tweak the x-position of the Tufte gapped lines. 
+  - v0.2.4 released. This is a patch for a set of bugs that mis-aligned Gardner-Altman plots, and also adds the capability to tweak the x-position of the Tufte gapped lines.
 
   - v0.2.3 released. This is a fix for a bug that did not properly handle x-columns which were pandas Categorical objects.
 
 April 2019:
   - v0.2.2 released. This is a minor bugfix that addressed an issue for an edge case where the mean or median difference was exactly zero.
-  
+
 March 2019:
   - v0.2.1 released. This is a minor bugfix that addressed an issue in gapped line plotting.
-  - v0.2.0 released. This is a major update that makes several breaking changes to the API. 
-  
+  - v0.2.0 released. This is a major update that makes several breaking changes to the API.
+
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