diff --git a/changelog.md b/changelog.md
index 1dbe7d3..4f47a96 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,8 +1,8 @@
 SciReactUI Changelog
 ====================
 
-[v0.3.1alpha] - 2026-?-?
-------------------------
+[v0.4.0] - 2026-02-10
+---------------------
 
 ### Added
 - New *Progress* component based on Diamond Light added.
@@ -10,7 +10,7 @@ SciReactUI Changelog
 - *NavMenu* component added for creating dropdown menus in the Navbar
   - *NavMenuLink* component extends NavLink to work in the NavMenu
 - *AuthProvider* added for authentication to Keycloak.
-- An *auth* parameter was added to *User* to simplify when *AuthProvider* is used. 
+  - An *auth* parameter was added to *User* to simplify when *AuthProvider* is used. 
 - *ScrollableImages* can now display in a wide view, with multiple images.
 
 ### Fixed
@@ -126,7 +126,7 @@ e.g. `<Breadcrumbs sx={{color:"red"}} />` instead of `<Breadcrumbs rootProps={{s
   - Generic
 
 
-[v0.0.0] - 2024-06-04
+[v0.0.0-alpha.1] - 2026-??-??
 --------------------
 
 ### Added
diff --git a/package.json b/package.json
index 73d7ebd..ae31852 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@diamondlightsource/sci-react-ui",
-  "version": "0.3.1-alpha.4",
+  "version": "0.4.0",
   "files": [
     "dist/"
   ],