diff --git a/CHANGELOG.txt b/CHANGELOG.txt
new file mode 100644
index 0000000..834569b
--- /dev/null
+++ b/CHANGELOG.txt
@@ -0,0 +1,13 @@
+# orbit-predictor changelog
+
+## 1.9.0 (2019-04-12)
+
+* First Python-3 only release!
+* Deprecated HighAccuracyTLEPredictor class, removed non-precise algorithm
+* Added new Keplerian and J2 predictors based on classical orbital elements
+* Added functions to create sun-synchronous satellites and planar constellations
+* Added new NoradTLESource
+* Fix off-nadir angle calculation
+* Allow custom locations using an environment variable
+* Do not round the microseconds internally, achieve much higher precision
+  (validated against STK)
diff --git a/orbit_predictor/version.py b/orbit_predictor/version.py
index 6db7e91..e3634b7 100644
--- a/orbit_predictor/version.py
+++ b/orbit_predictor/version.py
@@ -1,2 +1,2 @@
 # https://www.python.org/dev/peps/pep-0440/
-__version__ = '1.8.6'
+__version__ = '1.9.0'