diff --git a/.gitignore b/.gitignore
index 3e9ee87..bbb4d80 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,14 +1,11 @@
 # OGN stuff
-ogn.db
-beacons.db
+*.db
+*.log
 
-# Byte-compiled / optimized / DLL files
+# Python
 __pycache__/
 *.py[cod]
 
-# C extensions
-*.so
-
 # Distribution / packaging
 bin/
 build/
@@ -24,32 +21,12 @@ var/
 .installed.cfg
 *.egg
 
-# Installer logs
-pip-log.txt
-pip-delete-this-directory.txt
-
 # Unit test / coverage reports
-.tox/
 .coverage
 .cache
 nosetests.xml
 coverage.xml
 
-# Translations
-*.mo
-
-# Mr Developer
-.mr.developer.cfg
-.project
-.pydevproject
-
-# Rope
-.ropeproject
-
-# Django stuff:
-*.log
-*.pot
-
 # Sphinx documentation
 docs/_build/
 
@@ -58,4 +35,7 @@ docs/_build/
 *.swo
 
 # Python virtualenv
-env
+env/
+
+# Celery beat
+celerybeat-schedule
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5e2011c
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,17 @@
+# CHANGELOG
+
+## 0.2
+- Changed database schema.
+- Changed aprs app name to 'ogn-gateway-python'.
+- Moved repository to github-organisation glidernet.
+- Added exception handling to the packet parser.
+- Added some tests for ogn.gateway.client.
+- Added setup.py to build this package.
+- Added configuration via python modules.
+- Added scheduled tasks with celery.
+- Renamed command line option `db.updateddb` to `db.import_ddb`.
+- Added command line options `db.drop`, `db.import_file`, `db.upgrade`,
+  `logbook.compute` and `show.devices.stats`.
+
+## 0.1
+Initial version.
diff --git a/README.md b/README.md
index 9b0bbb2..b45e2c9 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,9 @@
 A python module for the [Open Glider Network](http://wiki.glidernet.org/).
 The submodule 'ogn.gateway' is an aprs client which could be invoked via a CLI
 or used by other python projects.
-The CLI allows to save all received beacons into a
-[sqlite](https://www.sqlite.org/)-database with [SQLAlchemy](http://www.sqlalchemy.org/).
+The CLI allows to save all received beacons into a database with [SQLAlchemy](http://www.sqlalchemy.org/).
+The [sqlite](https://www.sqlite.org/)-backend is sufficient for simple testing,
+but some tasks (e.g. logbook generation) require a proper backend like [postgresql](http://www.postgresql.org/).
 An external python project would instantiate ogn.gateway and register a custom callback,
 called each time a beacon is received.