The company has required notarization for apps (which gives them a Developer ID) since macOS Mojave 10.14.5, but warnings will soon become error messages for Catalina users. Apple had originally intended to clamp down when Catalina was available, but decided on a transition period to help developers adapt.

As you might imagine, this is all part of a push for greater security. The notarization not only prevents people from ‘casually’ running malware, but lets Apple take action if there’s a major security flaw or another serious problem. You’ll have to understand the risks if you want to run software without those safeguards.

Microsoft has released To-Do for Mac, finally giving Apple users access to the task management tool on their desktops. The Mac app will allow users to work offline, view their upcoming tasks under “My Day,” share to-do lists with friends and colleagues and see flagged emails. The app isn’t fully integrated with Microsoft Planner yet, but you can expect it soon. If you already use Microsoft To-Do on iOS, Android, Windows or the web, you’ll be able to sign-in to your account and access your tasks right on the Mac app.