Beijing time 1:00, the western United States time at 10:00 on October 7, macOS Catalina 10.15 full version upgrade! It brings many new features and changes for Mac users, iTunes finally split in this release. So the Apple upgrade what's new, or need to upgrade? Here Macdown small series and look at it together!
A, macOS Catalina new features:
The new application for music, TV and podcasts
after years of development to accommodate more types of content, iTunes finally split up. It has been split into iTunes music, podcasts, Apple TV three separate applications. Like their name suggests, they carry out their duties, and the Finder now supports iOS device management.
2, Sidecar
a new feature is to be macOS Catalina iPad as Mac external display, allowing the user to use the screen and mirror iPad and Apple Pencil.
3, Apple Arcade
are now more than 100 models youxi landed Apple Arcade, users can now pair your Mac and Xbox or PS4 wireless controller.
4, Screen Time
Screen Time for the first time in 12 iOS to help users manage their time on the iPhone and iPad, now the screen time came to Mac.
5, look for
the new "Find" application combines the "Find My Friends" and "Find My iPhone" app. It also provides new features, even if the machine is offline and can also help locate the device.
6, the new application
photos, reminders, notes, e-mail application and Safari have ushered update, all Mac with T2 chips have also been security improvements, such as enhanced Gatekeeper and Activation Lock.
7、辅助功能
全新的语音控制功能使用户可以用自己的语音导航Mac，并且所有处理都在设备上完成。
8、兼容性
macOS Catalina适用于从2012年及之后发布的大多数Mac设备，转到Mac App Store或“系统偏好设置”>“软件更新”，查看它是否已为您的计算机准备就绪。该更新的大小约为8GB。
兼容的Mac设备包括：12英寸MacBook；MacBook Air 2012年及更高版本；MacBook Pro 2012年及更高版本；Mac mini 2012年及更高版本；iMac 2012年和更高版本；iMac Pro、Mac Pro 2013年及更高版本
更多功能到苹果官网查看吧！
二、注意！macOS Catalina系统将取消对所有32应用的支持
取消对所有32位应用支持，这意味着如果一款软件到macOS Catalina时仍然是32位版本，那么用户就无法再使用它们了。
这种情况对Mac用户来说其实比较严重，因为目前Mac版的软件在更新频率上很难说很高，甚至不少软件都已经停止更新维护了，但这些老软件依然有不在少数的人在使用。我们可以预想的是，将有相当数量的常用软件会无法继续使用，大家可能需要去重新寻找新的替代软件。
如果平时必用的软件为32位版本，Macdown小编不建议升级，那么如何查看使用的软件是否为32位？方法如下。
三、确认Mac中的应用是不是32位的方法
1、按住键盘上的Option键并点击 左上角的苹果标志，点击系统信息。
2、向下滚动，找到“ 软件”，然后单击“ 应用程序”。根据您安装的应用程序数量，可能需要一分钟才能加载。
3、在窗口顶部，点击该选项按64位（英特尔） 排序，你将看到系统上安装的32位应用列表，这些32位应用程序将被标记为“ 否”。
These are small as we bring macOS Catalina 10.15 description. There are more detailed, useful features and Mac software acquisition, explore some of it to Macdown own.