diff --git a/IDEAS/package.mo b/IDEAS/package.mo
index b75ccedc53..effd6e4474 100644
--- a/IDEAS/package.mo
+++ b/IDEAS/package.mo
@@ -9,9 +9,9 @@ import SI = Modelica.SIunits;
 annotation (
   uses(Modelica(version="3.2.2")),
   Icon(graphics),
-  version="2.0.0",
-  versionDate="2018-09-27",
-  dateModified = "2018-09-27",
+  version="2.1.0",
+  versionDate="2019-02-28",
+  dateModified = "2019-02-28",
   conversion(
  from(version={"0.2"},
       script="modelica://IDEAS/Resources/Scripts/convertIdeas030to100.mos")),
diff --git a/README.md b/README.md
index 722dd9968b..e2d31bf2f7 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,11 @@
-IDEAS v2.0
+IDEAS v2.1
 ============
 [![Build Status](https://travis-ci.org/open-ideas/IDEAS.svg?branch=master)](https://travis-ci.org/open-ideas/IDEAS)
 
 Modelica model environment for Integrated District Energy Assessment Simulations (IDEAS), allowing simultaneous transient simulation of thermal and electrical systems at both building and feeder level.
 
 ## Release history
++ February 28th, 2019: IDEAS v2.1 has been released.
 + September 28th, 2018: IDEAS v2.0 has been released.
 + May 5th, 2017: IDEAS v1.0 has been released.  
    February 16th 2018: A [paper describing IDEAS v1.0](http://www.tandfonline.com/doi/full/10.1080/19401493.2018.1428361) has been published on line.
@@ -42,6 +43,7 @@ IDEAS is licensed by [KU Leuven](http://www.kuleuven.be) and [3E](http://www.3e.
 8. D. Picard, L. Helsen (2014). Advanced Hybrid Model for Borefield Heat Exchanger Performance Evaluation, an Implementation in Modelica. In Proceedings of the 10th International Modelica Conference. Lund, 857-866.
 9. D. Picard, L. Helsen (2014). A New Hybrid Model For Borefield Heat Exchangers Performance Evaluation. 2014 ASHRAE ANNUAL CONFERENCE: Vol. 120 (2). ASHRAE: Ground Source Heat Pumps: State of the Art Design, Performance and Research. Seattle, 1-8.
 10. Picard D., Jorissen F., Helsen L. (2015). Methodology for Obtaining Linear State Space Building Energy Simulation Models. 11th International Modelica Conference. International Modelica Conference. Paris, 21-23 September 2015 (pp. 51-58).
+10. Jorissen F., Helsen L. (2019). Integrated Modelica Model and Model Predictive Control of a Terraced House Using IDEAS. 13th International Modelica Conference. Regensburg, 4-6 March 2019.
 
 ### Applications of IDEAS
 1. D. Picard. (2017) Modeling, optimal control and HVAC design of large buildings using ground source heat pump systems. PhD thesis, Arenberg Doctoral School, KU Leuven.
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 7bfcfd6cac..681ddb4f3e 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,3 +1,25 @@
+## IDEAS v2.1
+IDEAS 2.1 has been released on February 28th, 2019. The most important changes are:
+
++ IBPSA has been updated up to commit 2d6a5a6ff80.
++ The twin house example model has been re-added to the library.
++ The PPD12 examples now includes a model that compares a rule based controller with a model predictive controller.
+
+### Detailed release notes:
+1. Deprecated IDEAS.Fluid.Actuators.Valves.Simplified.ThreeWayValve.
+2. Extended IDEAS.Buildings.Components.Shading.BuildingShade with a parameter for configuring partial shading.
+3. Added a two-way and three-way valve with a mixed linear-equal percentage opening characteristic.
+4. Added a bypass for the PPD12 air handling unit.
+5. Modified the way how initial equations are defined for wall models. This avoids duplicate initial equations.
+6. Fixed a bug in the zone model when allowFlowReversal was set to false.
+7. Added the option for setting a fixed boudnary condition temperature in BoundaryWall.
+8. Added a utility that automatically checks the git version of library dependencies when running a model, for enhanced version checking of models.
+9. Revised the implementation of the thermostatic radiator valve model such that it is smooth.
+10. Revised documentation in ExteriorSolarAbsorption.
+11. Fixed a compatibility bug with OpenModelica.
+12. Removed reference to non-existent parameter in RectangularZoneTemplate.
+
+
 ## IDEAS v2.0
 IDEAS 2.0 has been released on September 28th, 2018. Highlights of this release compared to v1.0 are: