We just released the JupyterLab 2.0 release candidate. Please test, and if you have an extension, we encourage you to try to update your extension to work with it.
Congrats! I have my 2.0 JupyterLab up and running. All well so far. Is there a way to isolate 2.0 compatible extensions? Frustrating to search and have most extensions not work.
No easy way, though JupyterLab itself should refuse to install non-compatible extensions and will try to find compatible extension versions. We’ve been encouraging people to port extensions to JLab 2.0 rc to check the upgrade process. I imagine we’ll get a lot of extension releases next week after 2.0 is released, since most extensions that are being updated won’t ship a final version until jlab 2.0 is released. ipywidgets will release a compatible version next week, for example, but for now, you’d have to install the ipywidgets jlab extension prerelease: jupyter labextension install @jupyter-widgets/jupyterlab-manager@next
FYI, we (JupyterLab maintainers) don’t control the Anaconda package. The official Project Jupyter JupyterLab packages are published on pypi and conda-forge (and the relevant npm packages are published on npmjs.com). JupyterLab 2.0 is available from these sources.