diff --git a/VERSION b/VERSION
index d69960efb..3eefcb9dd 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0-a6
+1.0.0
diff --git a/docs/source/about/changelog.rst b/docs/source/about/changelog.rst
index 69c8eb902..3472f8da6 100644
--- a/docs/source/about/changelog.rst
+++ b/docs/source/about/changelog.rst
@@ -26,6 +26,13 @@ Unreleased
 No changes.
 
 
+v1.0.0
+------
+:octicon:`milestone` *released on 2023-02-25*
+
+No changes.
+
+
 v1.0.0-a6
 ---------
 :octicon:`milestone` *released on 2023-02-23*
diff --git a/src/client/package-lock.json b/src/client/package-lock.json
index c81ff270c..9bd69146c 100644
--- a/src/client/package-lock.json
+++ b/src/client/package-lock.json
@@ -1,11 +1,11 @@
 {
   "name": "client",
-  "version": "1.0.0-a6",
+  "version": "1.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "version": "1.0.0-a6",
+      "version": "1.0.0",
       "license": "MIT",
       "workspaces": [
         "./packages/*"
@@ -1764,7 +1764,7 @@
       "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw=="
     },
     "packages/idom-app-react": {
-      "version": "1.0.0-a6",
+      "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
         "idom-client-react": "file:packages/idom-client-react",
@@ -1790,7 +1790,7 @@
       }
     },
     "packages/idom-client-react": {
-      "version": "1.0.0-a6",
+      "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
         "htm": "^3.0.3",
diff --git a/src/client/package.json b/src/client/package.json
index c7f21e1c3..03056fb12 100644
--- a/src/client/package.json
+++ b/src/client/package.json
@@ -14,7 +14,7 @@
     "publish": "npm --workspaces publish",
     "test": "npm --workspaces test"
   },
-  "version": "1.0.0-a6",
+  "version": "1.0.0",
   "workspaces": [
     "./packages/*"
   ]
diff --git a/src/client/packages/idom-app-react/package.json b/src/client/packages/idom-app-react/package.json
index 230a232a2..bfb8f5680 100644
--- a/src/client/packages/idom-app-react/package.json
+++ b/src/client/packages/idom-app-react/package.json
@@ -20,5 +20,5 @@
     "format": "prettier --write ./src",
     "test": "echo 'no tests'"
   },
-  "version": "1.0.0-a6"
+  "version": "1.0.0"
 }
diff --git a/src/client/packages/idom-client-react/package.json b/src/client/packages/idom-client-react/package.json
index a68c42e0a..cd66445b1 100644
--- a/src/client/packages/idom-client-react/package.json
+++ b/src/client/packages/idom-client-react/package.json
@@ -31,5 +31,5 @@
     "test": "uvu tests"
   },
   "type": "module",
-  "version": "1.0.0-a6"
+  "version": "1.0.0"
 }
diff --git a/src/idom/__init__.py b/src/idom/__init__.py
index 41b96863a..21acc4ad6 100644
--- a/src/idom/__init__.py
+++ b/src/idom/__init__.py
@@ -22,7 +22,7 @@
 
 
 __author__ = "idom-team"
-__version__ = "1.0.0-a6"  # DO NOT MODIFY
+__version__ = "1.0.0"  # DO NOT MODIFY
 
 __all__ = [
     "backend",
diff --git a/tests/test_core/test_vdom.py b/tests/test_core/test_vdom.py
index b17028e38..328bbcd6a 100644
--- a/tests/test_core/test_vdom.py
+++ b/tests/test_core/test_vdom.py
@@ -201,11 +201,11 @@ def test_valid_vdom(value):
         ),
         (
             {"tagName": "tag", "children": [None]},
-            r"data\.children\[{data_x}\] must be object or string",
+            r"data\.children\[0\] must be object or string",
         ),
         (
             {"tagName": "tag", "children": [{"tagName": None}]},
-            r"data\.children\[{data_x}\]\.tagName must be string",
+            r"data\.children\[0\]\.tagName must be string",
         ),
         (
             {"tagName": "tag", "attributes": None},
@@ -217,14 +217,14 @@ def test_valid_vdom(value):
         ),
         (
             {"tagName": "tag", "eventHandlers": {"on_event": None}},
-            r"data\.eventHandlers\.{data_key} must be object",
+            r"data\.eventHandlers\.on_event must be object",
         ),
         (
             {
                 "tagName": "tag",
                 "eventHandlers": {"on_event": {}},
             },
-            r"data\.eventHandlers\.{data_key}\ must contain \['target'\] properties",
+            r"data\.eventHandlers\.on_event\ must contain \['target'\] properties",
         ),
         (
             {
@@ -236,7 +236,7 @@ def test_valid_vdom(value):
                     }
                 },
             },
-            r"data\.eventHandlers\.{data_key}\.preventDefault must be boolean",
+            r"data\.eventHandlers\.on_event\.preventDefault must be boolean",
         ),
         (
             {
@@ -248,7 +248,7 @@ def test_valid_vdom(value):
                     }
                 },
             },
-            r"data\.eventHandlers\.{data_key}\.stopPropagation must be boolean",
+            r"data\.eventHandlers\.on_event\.stopPropagation must be boolean",
         ),
         (
             {"tagName": "tag", "importSource": None},