To release a new version of ipywe on conda: Update version numbers (set release version, remove 'dev') in _version.py meta.yaml package.json git add and git commit tag git tag -a X.X.X -m 'comment' push git push git push --tags build and upload conda build --py {{PYTHON_VERSION}} conda-recipes (or CONDA_PY {{PYTHON_VERSION}} conda build conda-recipes) anaconda login anaconda upload /path/to/ipywe-...tar.bz2 To release a new version on PyPI: python setup.py sdist upload To release a new version of ipywe on NPM: # nuke the `dist` and `node_modules` git clean -fdx npm install npm publish