Collabora Online 4.0 comes almost a year after the previous release with a new look that refreshes the toolbar icons, colors, and layout, adds a new icon to let users hide the menu bar, as well as various other smaller tweaks to simplify the user interface while giving users a more enjoyable and productive LibreOffice Online experience. Collabora Online 4.0 also improves support for HiDPI and Retina displays, as well as interoperability with other popular office suites, and enables easier shape editing. Additionally, it introduces more secure documents by implementing support for Vereign’s blockchain-powered platform to allow users to sign their documents with Swiss standards.