diff --git a/CHANGELOG.md b/CHANGELOG.md
index a175729..0a47da9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ In general the development follows the [semantic versioning](https://semver.org/
 ## Pre-1.0-releases
 As per the definition of semantic versioning and the reality of early development, in versions prior to 1.0.0 any release might break compatability. To alleviate this somewhat, the meaning of major-minor-patch is "downshifted" to zero-major-minor. However some breaking changes may slip beneath notice.
 
-### Version 0.10.1
+### Version 0.10.0
 * Change handling and definition of timesteps by introducing datetime indexes for profiles and for internal handling:
   * Profile values in ReSiE are now defined as the mean/sum of the timespan following the current timestep. This affects mainly the weather data from a global weather file. If this is not used, any definition can be used, the provided profiles just have to be consistent.
   * Simulation start and end time have to be given as datetime now.