We are less than a week away from WWDC 2019, and this year is shaping up to be a great one. So far, we have rounded off everything we know about iOS 13 and watchOS 6, but this year's WWDC will also mark the discovery of macOS 10.15. Read on to get an overview of what features, enhancements and more to expect with MacOS 10.15 this year.
Prior to MacOS 10.15 is Maripan. This is Apple's technology for porting iPad applications to Mac, making the process of creating a Mac app much easier for developers. Apple offered preview of marzipan last year and used it to include apps like Home and News for Mac.
While Apple has been using Maripan to bring their own apps to Mac, developers will soon be able to use technology to bring their own iPad apps to Mac. Theoretically, this will extend the number of Mac applications available to users.
New Music Cap on MacOS 10.15
MacOS 10.15 is expected to provide a host of new applications for Mac. While most are expected to be built with marzipan, Apple's porting iPad application process for the Mac will include a brand new iTunes-based music app.
The all-new Music app has a new design that puts a focus on Apple Music, which the 9to5Mac first noted this week. The search feature has been moved to the left, along with a user's existing music library with functionality for Apple Music magazines. The new Music app also retains certain classic iTunes features, such as the ability to sync devices.
The new music cap will ideally simplify the listening experience on macOS by focusing purely on music, with Apple breaking video and podcast features into new standalone applications. iTunes has become incredibly depressed and while the new Music app will still be based on iTunes code, it should be much easier with this year's update.
New Podcasts and TV Apps on MacOS 10.15
Apple just revealed everything -New TV app on iOS and tvOS, and that app also comes to Mac with MacOS 10.15. The new TV app on macOS allows users to access all the features of the TV app on iOS and tvOS. Along the top are various sections for "Watch Now", "Movies", "TV Shows", "Kids" and "Library."
9to5Mac exclusively revealed the design of the TV app on macOS this week, showing its similarities with the iOS version. The new TV app will be made with Marzipan.
With the launch of a new Music app, Apple also breaks podcast functionality into a standalone Podcast application. This application is probably built with marzipan, which means it will look and feel very similar to the Podcasts app on iOS.
Updated Apple Books
In addition to the new apps coming to Mac with MacOS 10.15, existing book apps are set to get a big update. The new book app will contain a new page bar design, as well as various tabs for the library, store and audiobook store. The sidebar will contain access to books, audiobooks, PDFs, and collections.
Message Upgrade and Reminders
Messages on Mac are expected to be updated with new features such as stickers and effects. These features debuted on IOS several years ago, but only now is Apple bringing them to Mac. The Mac will have effects like confetti, lasers, fireworks and others.
Furthermore, Apple's refurbished app reminders will also come to Mac this year. We presented the reminder design on iOS this week and we should expect a similar interface on macOS. The new design has a grid layout with parts for tasks due today, as well as scheduled tasks, flagged tasks and more.
Still the trend of closing the gap between Mac and iOS, Apple will bring Screen Time to macOS this year. Screen time on Mac will be placed in a new panel in the System Preferences app. Users will be able to set limit values and parental controls, track usage and more. The experience will be very similar to what is currently available on iOS.
Also for System Preferences is a new Apple ID management panel. Again, this is similar to what is currently available on iOS, with Apple also making it easier to configure family sharing from Mac.
9to5Mac reported last month that macOS 10.15 also includes Siri Shortcuts support. This means that users will be able to create custom voice welding for actions in compatible applications. It's also likely that the standalone shortcut app will come to Mac this year.
With developers who can port their iPad applications to Mac, MacOS shortcuts are almost a necessity.
Extended Apple Watch Authentication 
9to5Mac reported earlier this year that macOS 10.15 will include enhanced integration with Apple Watch. Currently, Apple Watch can unlock a nearby Mac, but that functionality will extend to other Mac operations.
It is possible that all authentication mechanisms currently relying on Touch ID on Mac could be approved by Apple Watch as well. There may also be a new interface on Apple Watch, similar to the Apple Pay interface, to confirm authentication on macOS.
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Also in MacOS 10.15 is a new external display functionality. As 9to5Mac reported:
Now Apple is working to make the seamless experience native to the Mac. According to people who are familiar with the development of MacOS 10.15 – the next major version of Apple's desktop OS – the new system will have a feature that allows users to send any window on any app to an external monitor. The external monitor can be an actual external monitor connected to a Mac or an iPad.
Merged "Find Me" App
Last, but not least, Apple is developing a unified Find My Friends and Find My iPhone Application. This will be available on iOS and macOS. The unified app will contain all the features of the standalone applications, but in a unified application.
The Unified App will also include a new feature "Find Network" that allows devices to be tracked even if they are not connected to WiFi or mobile.
MacOS 10.15 Availability
MacOS 10.15 will be screened at WWDC next week, with a developer preview likely released June 3. What are you most happy to see in macOS 10.15? Please let us know in the comments.
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