Support uploading files to the plugin engine drag and drop files/folders to the plugin engine new api functions: api.requestUploadUrl, api.uploadFileToUrl and api.downloadFileFromUrl remove file and folder in the plugin engine goto any folder download file from the engine file dialog Enhanced window management shortcut icons to up to 9 windows click to focus window standalone mode for windows Improved Engine Dialog seperate to new engine dialog and about engine dialog add api_version to engine show system information for plugin engines Reset engine button More pythonic way of using imjoy api support from imjoy import api Create window plugin in web-python support new plugin type web-python-window allows access to dom in python plot directly with matplotlib Support cover image(s)/GIFs add cover filed to <config> block which allows to add animations to plugins demo: https://tinyurl.com/yxdtse8l Other improvements Use tight layout on small screen add api.prompt show Restart ImJoy button to allow restart manually in PWA popup restart button when loading timeout API version: 0.1.5 Breaking changes window.onclose has been renamed to window.onClose api.showFileDialog now return an object instead of a string if user cancelled api.showFileDialog, it will return false instead of trigger an error