diff --git a/FMILIB_Readme.txt b/FMILIB_Readme.txt
index 8b88ddfa..f20a3603 100644
--- a/FMILIB_Readme.txt
+++ b/FMILIB_Readme.txt
@@ -8,11 +8,11 @@
 
 \mainpage FMI Library
 
-\version     2.2.3
-\date        22 October 2020
+\version     2.3
+\date        3 May 2021
 \section Summary
 FMI library is intended as a foundation for applications interfacing FMUs 
-(Functional Mockup Units) that follow FMI Standard. This version of the library supports FMI 1.0 and FMI2.0.
+(Functional Mockup Units) that follow FMI Standard. This version of the library supports FMI 1.0 and FMI 2.0.
 See <http://www.fmi-standard.org/> 
 
 The test codes provided with the library can serve as starting point for the 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index d0a0027e..561f7d34 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -4,6 +4,11 @@ The release notes are typically a highlighting subset of all changes made. For f
 
 Note that version 2.1 is the first version with release notes. Please see the commit history for older versions.
 
+## 2.3
+
+- Updated `fmi_import_get_fmi_version` to also work on unpacked FMUs.
+- Bug fix: Fix compilation issue on OSX related to locale.
+
 ## 2.2.3
 
 - Bug fix: Fix segfault during parsing of FMI1