diff --git a/.scripts/buildwheel.sh b/.scripts/buildwheel.sh
index a97b45d2..71f7e93a 100644
--- a/.scripts/buildwheel.sh
+++ b/.scripts/buildwheel.sh
@@ -7,6 +7,9 @@ rm -rf python/wheelhouse/*
 cd $TRAVIS_BUILD_DIR
 docker run --rm -it -v $(pwd):/io deltachat/wheel /io/python/wheelbuilder/build-wheels.sh
 
+# create an index at the community "devpi" python packaging site
+# and push both binary wheel packages and the source package to
+# the https://m.devpi.net/dc/BRANCHNAME index 
 devpi use https://m.devpi.net
 devpi login dc --password $DEVPI_LOGIN
 
diff --git a/python/CHANGELOG b/python/CHANGELOG
index 7d89682c..dc3431e4 100644
--- a/python/CHANGELOG
+++ b/python/CHANGELOG
@@ -1,3 +1,11 @@
+0.9.0
+-----
+
+- build against latest deltachat core (0.41 ++) 
+- streamline package building
+- allow installing from devpi.net package index
+
+
 0.8.2
 -----
 
diff --git a/python/README.rst b/python/README.rst
index 2ebfa1a6..ed343250 100644
--- a/python/README.rst
+++ b/python/README.rst
@@ -31,6 +31,16 @@ If you have a linux system you, may install
         python -c "import deltachat"
 
 
+Installing a wheel from a github branch
+---------------------------------------
+
+For Linux, we automatically build wheels for all PRs
+and push them to a devpi/pypi index which case be used
+with ``pip``.  For example, to install the latest "master" built::
+
+    pip install -i https://m.devpi.net/dc/master deltachat
+
+
 Installing bindings from source
 ===============================
 
diff --git a/python/src/deltachat/__init__.py b/python/src/deltachat/__init__.py
index 920bd11a..6d319872 100644
--- a/python/src/deltachat/__init__.py
+++ b/python/src/deltachat/__init__.py
@@ -2,7 +2,7 @@ from deltachat import capi, const
 from deltachat.capi import ffi
 from deltachat.account import Account  # noqa
 
-__version__ = "0.9.0dev1"
+__version__ = "0.9.0"
 
 
 _DC_CALLBACK_MAP = {}