Release 2.8.0 (#490)

* Release 2.8.0

* Fix doc warning

* Update changelog.rst

Author: araffin

docs/misc/changelog.rst

@@ -5,8 +5,33 @@ Changelog
 
 For download links, please look at `Github release page <https://github.com/hill-a/stable-baselines/releases>`_.
 
-Pre-Release 2.7.1a0 (WIP)
--------------------------
+
+Pre-Release 2.8.1a0 (WIP)
+--------------------------
+
+Breaking Changes:
+^^^^^^^^^^^^^^^^^
+
+New Features:
+^^^^^^^^^^^^^
+
+Bug Fixes:
+^^^^^^^^^^
+
+Deprecations:
+^^^^^^^^^^^^^
+
+Others:
+^^^^^^^
+
+Documentation:
+^^^^^^^^^^^^^^
+
+
+Release 2.8.0 (2019-09-29)
+--------------------------
+
+**MPI dependency optional, new save format, ACKTR with continuous actions**
 
 Breaking Changes:
 ^^^^^^^^^^^^^^^^^
@@ -42,7 +67,7 @@ Bug Fixes:
   `Issue #430 <https://github.com/hill-a/stable-baselines/issues/430>`_.
 - Fix a bug when calling `logger.configure()` with MPI enabled (@keshaviyengar)
 - set `allow_pickle=True` for numpy>=1.17.0 when loading expert dataset
-- Fix a bug when using VecCheckNan with numpy ndarray as state.  `Issue #489 <https://github.com/hill-a/stable-baselines/issues/489>`_.
+- Fix a bug when using VecCheckNan with numpy ndarray as state.  `Issue #489 <https://github.com/hill-a/stable-baselines/issues/489>`_. (@ruifeng96150)
 
 Deprecations:
 ^^^^^^^^^^^^^

setup.py

@@ -140,7 +140,7 @@
       license="MIT",
       long_description=long_description,
       long_description_content_type='text/markdown',
-      version="2.7.1a0",
+      version="2.8.0",
       )
 
 # python setup.py sdist

stable_baselines/__init__.py

@@ -20,4 +20,4 @@
     from stable_baselines.trpo_mpi import TRPO
 del mpi4py
 
-__version__ = "2.7.1a0"
+__version__ = "2.8.0"