diff --git a/ELM_CHANGELOG.md b/ELM_CHANGELOG.md
index 1a6d7bc..6c625d7 100644
--- a/ELM_CHANGELOG.md
+++ b/ELM_CHANGELOG.md
@@ -1,5 +1,9 @@
 # Elm Changelog
 
+## [26.0.0]
+
+- Add `pinned` to `GridConfig.autoGroupColumnDef`
+
 ## [25.0.0]
 
 - Add `autoHeight` and `wrapText` to `ColumnSettings`
diff --git a/elm.json b/elm.json
index b8f6f11..2835f35 100644
--- a/elm.json
+++ b/elm.json
@@ -3,7 +3,7 @@
     "name": "mercurymedia/elm-ag-grid",
     "summary": "AgGrid integration for Elm",
     "license": "MIT",
-    "version": "25.0.0",
+    "version": "26.0.0",
     "exposed-modules": [
         "AgGrid.ContextMenu",
         "AgGrid.Expression",