diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e01523a..2b3458d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,33 +12,32 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Base Setup
       uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
 
     - name: Install dependencies
-      run: python -m pip install -U "jupyterlab>=3.0,<3.6"
+      run: python -m pip install -U "jupyterlab>=3.0,<4.0"
 
     - name: Build the extension
       run: |
         set -eux
         python -m pip install .
 
-        #jupyter server extension list
-        #jupyter server extension list 2>&1 | grep -ie "jupyros.*OK"
-
         jupyter labextension list
         jupyter labextension list 2>&1 | grep -ie "@robostack/jupyter-ros.*OK"
+
+        npx playwright install
         python -m jupyterlab.browser_check
 
     - name: Package the extension
       run: |
         set -eux
-        pip install build
-        python -m build
-        pip uninstall -y "jupyros" jupyterlab
-    
+        pip install hatch
+        python -m hatch build
+        pip uninstall -y jupyros jupyterlab
+
     - name: Upload extension packages
       uses: actions/upload-artifact@v3
       with:
@@ -52,11 +51,11 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
-        python-version: '3.9'
+        python-version: '3.10'
         architecture: 'x64'
     - uses: actions/download-artifact@v3
       with:
@@ -67,10 +66,7 @@ jobs:
         # Remove NodeJS, twice to take care of system and locally installed node versions.
         sudo rm -rf $(which node)
         sudo rm -rf $(which node)
-        pip install "jupyterlab>=3.0,<3.6" jupyros*.whl
-
-        #jupyter server extension list
-        #jupyter server extension list 2>&1 | grep -ie "jupyros.*OK"
+        pip install "jupyterlab>=3.0,<4.0" jupyros*.whl
 
         jupyter labextension list
         jupyter labextension list 2>&1 | grep -ie "@robostack/jupyter-ros.*OK"
diff --git a/js/package.json b/js/package.json
index c0aee5f..fbcd588 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@robostack/jupyter-ros",
-    "version": "0.7.0-a0",
+    "version": "0.7.0",
     "description": "Jupyter widgets for the ROS ecosystem.",
     "homepage": "https://github.com/wolfv/jupyter-ros.git",
     "author": {
diff --git a/jupyros/_version.py b/jupyros/_version.py
deleted file mode 100644
index 8cf9e05..0000000
--- a/jupyros/_version.py
+++ /dev/null
@@ -1,4 +0,0 @@
-# This file is auto-generated by Hatchling. As such, do not:
-#   - modify
-#   - track in version control e.g. be sure to add to .gitignore
-__version__ = VERSION = '0.7.0a0'