MacOS Monterey build 21A5284e

macOS Monterey build 21A5284e is the official Beta 3 and Public Beta 2 release of macOS Monterey, which was released to Apple developers on 14 July 2021, then to the public two days later on 16 July.

Safari

 * The refresh button in the search button has been returned from MacOS Big Sur.
 * Now tabs are displayed below the search bar, instead next from the search bar, from the visual design similar to MacOS Big Sur.
 * To revert the new visual design from Monterey, there's a new option in the Safari Preferences to disable seperated tabs.
 * Share and reload options were reverted back in this beta, after being absent from macOS Monterey build 21A5248p.

System Preferences

 * A new option has been implemented in Display > Advanced.. named as "Allow your cursor and keyboard to move between any nearby Mac or iPad". This feature enables with a check mark Universal Control.
 * A new option has been implemented in the same page such as the ability to push the display through the edge to connect from an iPad or Mac. This option doesn't work at all as it's not finished yet.

Iibc++
The following new C++20 and C++23 features are now implemented:


 * C++20 library concepts defined in.
 * for  and swap-related functions.
 * Miscellaneous -ification in the library.
 * now default initializes as expected.
 * A  method for associative containers.
 * Added . (88131816)

Other

 * Added SharePlay.

Apple Pay

 * Developers can now access the

network preference.

Iibc++

 * Tuples can no longer be constructed from fewer than the number of elements in the tuple. Previously, elements that weren’t specified were default-constructed; now this is a compiler error.
 * A tuple can no longer be constructed from an array.
 * The  and   type traits are no longer available in C++20 mode, as specified in the Standard.

WebKit

 * Support for inline viewing of PostScript files is no longer available. (88172449)

Kernel

 * The kernel extensions used by Dropbox Desktop Application and Microsoft OneDrive are no longer available. Both service providers have replacements for this functionality; Dropbox is currently in beta. (85890896)

Python

 * Python 2.7 was removed from macOS in this update. Developers should use Python 3 or an alternative language instead. (39795874)

StoreKit
New improvements to commands from StoreKit have been made to fix bugs according to the application.


 * has three new methods to simulate a subscription requiring price increase consent, simulate consenting to a pending price increase, and simulate declining a price increase in automated tests. (84556183)


 * has two new Boolean properties to simulate billing retry and grace period in automated tests. You can identify and simulate the resolution of billing retry issues using the same APIs as interrupted purchases. (83956205)


 * Users can now test the billing retry and grace period states using StoreKit Testing in Xcode. Use Xcode 13.3 or later to enable billing retry testing and toggle whether the app offers a grace period. Use  and   to handle these states in the app. (83938270)


 * error types now conform to . (78735204)


 * Users can test subscription price increase behavior using StoreKit Testing in Xcode. Use Xcode 13.3 or later to set a price increase, then use,  , and   in the app. (58770817)


 * Some types in  now have a   read-only   instance property. This property can be used to get a human-readable description of the value, localized for the device’s current locale. These types include: ,  ,  ,  ,  ,  ,  ,  ,  , and  . (78735060)

Universal Control

 * Drag-and-drop scenarios might not work for some file types and apps. (88106322)
 * Some third-party keyboards and mice might encounter issues when using additional functionality, like scroll wheels. (88106362)

iWork

 * Collaboration scenarios might not work when the user configures the system to a right-to-left language. (89078453) Workaround: Use iWork.com to collaborate in Safari using a right-to-left language.