This version of the API shipped with Indigo 2021.2.0 - check the API Version Chart to see what version of the API is available in which Indigo versions.
<URL> element to <MenuItem> and <PluginConfig> elements so that those menus will open a browser URL rather than run a plugin config dialog./messages/ call to the action props dict. indigo.Dict and indigo.List instances to the Python equivalents (recursively).self.pluginFolderPath)self.pluginSupportURL)indigo.server.getWebServerURL)indigo.utils moduleindigo.utils.JSONDateEncoder)indigo.utils.FileNotFoundError)indigo.Dict to IWS to direct it to stream the contents of a static file back to the requester (indigo.utils.return_static_file)indigo.utils.validate_email_address)