diff --git a/CHANGELOG.md b/CHANGELOG.md
index a62c239..7973427 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # easyNWK Version History
 
+## version 2.1.0, released 26 Feb 2024
+
+* (feature) create or duplicate network maps to document change over time [#118](https://github.com/fhstp/easynwk-web/issues/118)
+  * warning: new JSON file format (network maps saved in previous versions can be opened in 2.1.0)
+
 ## version 2.0.6, released 25 Aug 2023
 
 * (feature) zoom with brushbox, mouse wheel, and sector labels [#103](https://github.com/fhstp/easynwk-web/issues/103)
diff --git a/package.json b/package.json
index 977a91a..e221968 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "easynwk",
-  "version": "2.0.6",
+  "version": "2.1.0",
   "private": true,
   "author": "Alexander Rind (https://github.com/alex-rind/)",
   "repository": "https://github.com/fhstp/easynwk-web/",