At long last, JupyterLab 4.0 has been released 🍾

This version brings better performance and improved accessibility, a new text editor based on CodeMirror 6, improved Search and Replace functionality, and optional Real Time Collaboration (RTC).

Install it with `pip install "jupyterlab==4.0.0"`

The @Jupyter team will soon publish a blog post and a new version of the classic Notebook. Stay tuned!

Full release notes jupyterlab.readthedocs.io/en/l