Conforme informamos ontem, a Apple liberou as Release Candidates das versões 27.2 dos seus sistemas operacionais, incluindo algumas reformulações visuais e novidades.

Vamos conferir o que chegou para os sistemas da Maçã?

iOS/iPadOS 27.2

No caso da RC do iOS 27.2, há uma série de pistas sobre implementações de recursos futuros, além de integrações com outros sistemas: é o caso da adição do código de configuração do som surround com quatro HomePods e a nova Apple TV 4K (quarta geração):

iOS 27.2 RC adds setup code for surround sound with 4 HomePods and Apple TV 4K (4th gen).

The code was already included in the iPhone Duo 27.2 simulator runtime. https://t.co/LXuYyOxBQi pic.twitter.com/0FqZnZN1qb

— pdfu (@itspdfu) October 19, 2026

Um indício deixado no sistema para um recurso futuro é a não contabilização de conversas silenciadas na contagem das notificações de mensagens não lidas no app Mensagens (Messages):

iOS 27.2 RC indicates that Apple is working on a feature to exclude muted chats from the unread count in the Messages app

— Aaron (@aaronp613) October 19, 2026

O código do sistema também apresenta vestígios do MacBook Pro com tela sensível ao toque (também chamado de “MacBook Ultra”) para o recurso Sidecar:

iOS 27.2 once again likely references the upcoming MacBook Pro with a touchscreen

The code for SideCar adds a new mention of "touch display" pic.twitter.com/KWwMwqo0hm

— Aaron (@aaronp613) October 19, 2026

Outro achado no sistema foi uma menção ao iOS 28, que deverá chegar aos aparelhos no ano que vem:

iOS 27.2 RC already references iOS 28 pic.twitter.com/oAJ2aBulGq

— Aaron (@aaronp613) October 19, 2026

Software do HomePod 27.2

Às vésperas da chegada do HomePod mini 2, o software dos alto-falantes inteligentes da Apple ganhou algumas novidades que se aplicam aos demais modelos compatíveis com a atualização (para ser mais exato, o HomePod mini de primeira geração e o HomePod de segunda geração), como o Sound Glow (que exibe luzes ambientes no topo do alto-falante de acordo com o som que está sendo reproduzido) e o bloqueio dos controles de toque:

Sound Glow will work on HomePod mini 1, HomePod mini 2 and HomePod (2nd generation)!

In HomePod Software 27.2 RC, the LightShowCapability check is “productType > 1,” so only the original HomePod is unsupported. https://t.co/KwMrrAx7rf

— pdfu (@itspdfu) October 19, 2026

All HomePod models will support the Lock Controls setting, according to HomePod software 27.2 RC.

You should see the setting in the Home app after updating both HomePod and iPhone. https://t.co/lAPVuRg3av

— pdfu (@itspdfu) October 19, 2026

O leaker pdfu [@itspdfu] confirmou ainda que o Party Mode (“Modo Festa” em tradução direta) é um modo de renderização “difuso” secundário para som surround, o que significa que, para aproveitá-lo, será necessário ter uma Apple TV 4K de quarta geração:

audioOS 27.2 confirms that Whole Room Audio (Party Mode) is a secondary “diffuse” rendering mode for surround sound, so you’ll need the new Apple TV 4K.

The feature has an interesting implementation: it gives diagonally opposite HomePods the same L/R stereo role.

Front left →… pic.twitter.com/2uPCGrjPks

— pdfu (@itspdfu) October 19, 2026

tvOS 27.2

Ainda sobre o som surround com HomePods na Apple TV, será possível ajustar o modo dos alto-falantes, o ganho de surround e o funcionamento do som estéreo:

You’ll get new audio controls when you set up four HomePods with the new Apple TV.

Speaker Mode: Surround Sound or Whole Room Audio.

Specifically for Surround Sound:
• Spatialize Stereo: Control whether to play a spatially processed mix for video and music. As reported in… pic.twitter.com/KDzUeu3VpU

— pdfu (@itspdfu) October 19, 2026

A nova versão do sistema também permite a exibição aleatória de protetores de tela personalizados com Memórias, Apresentações de Slides ou Retratos:

tvOS 27.2 allows you to shuffle through available Screen Savers throughout the day.

You can also set up Memories & Slideshows or Portraits screen savers on iPhone or iPad without sharing your whole library.

The features were announced in the Apple TV 4K press release. pic.twitter.com/1VNsCBzymi

— pdfu (@itspdfu) October 19, 2026

Bastante coisa, né?

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macOS Golden Gate 27 Beta Release Notes:

AppKit adds NSRefreshController, providing pull-to-refresh functionality for NSScrollView.

[…]

NSToolbarItemGroup adds the role property and the NSToolbarItemGroupRole enum, allowing toolbar item groups to be tagged with a semantic role. NSSegmentedControl similarly adds a role property and the NSSegmentedControlRole enum, including a tabs role for controls that represent tab-based navigation and content selection.

[…]

NSTextSelectionManager provides common text selection interactions (click, drag, shift-click, double/triple-click word/line/paragraph selection) to a NSView with a set of NSGestureRecognizers rather than overriding NSEvent mouse methods. NSTextView now uses NSTextSelectionManager and provides its own set of NSGestureRecognizers to provide additional features in addition to text selection.

[…]

By default, NSMenu hides all menu item symbol images — non-symbol images remain visible. […] Use the new preferredImageVisibility property on NSMenuItem to customize the image visibility for your menu items. As in macOS 26.0, NSMenu automatically provides default visible menu item images for certain common system-wide menu items, such as Settings, Share, and Print.

AppKit updates:

Create events similar to UIControl events on NSControl with the new NSControl.Events type.

[…]

Initiate a drag operation from a gesture recognizer using the new beginDraggingSession(items:gesture:source:) method on NSView.

[…]

Update views automatically in response to Observable model changes using the guidance in Updating views automatically with observation tracking.

How is this different from what was announced last year?

Modernize your AppKit app:

Bring your AppKit app up to date with modern macOS conventions. Dive into handling input with control events and gesture recognizers, moving beyond traditional tracking loops. Enhance keyboard navigation in your app, implement graceful state restoration after restarts, and take advantage of new corner concentricity APIs that let your interface blend seamlessly with the macOS aesthetic.

Steve Troughton-Smith:

To summarize the singular AppKit session this year: hey remember all these APIs and design patterns from UIKit? Well they’re now in AppKit and you should use them! Also make your glass use interactive bounce effects.

Why? No reason!😉

TN3212:

In macOS 27, AppKit continues to standardize on gesture recognizers as the primary mechanism for input handling. This change directly affects Sidecar because gesture recognizers are the only way to respond to touch input from a Sidecar-connected iPad running iPadOS 27. If your app relies on tracking loops for mouse event handling, migrate to gesture recognizers to support Sidecar touch input.

This article explains how the gesture recognizer model works, how to implement gesture recognizers correctly for Sidecar touch input, how to update your existing event-handling code, and which APIs macOS 27 adds. Codebases that implement nextEvent(matching:) or mouseDown(with:), mouseDragged(with:), and mouseUp(with:) events are most affected by the updates discussed.

Greg Pierce:

After the AppKit session blindsided me a bit after telling me not to override mouseDown, and then telling me I should override hitTest

Mario Guzmán:

A few years ago, Apple introduced:

func tableView(_ tableView: NSTableView, userCanChangeVisibilityOf column: NSTableColumn) -> Bool

for NSTableView, which Is a native way users could control-click on a TableView column to show/hide columns.

This year, in #macOS27, they updated it to have a new “Reset to Defaults” option.

This is awesome bc I have done my own implementation of this feature JUST to have the option to “reset all columns” and now Apple just includes it!

Elevate your app’s text experience with TextKit:

Discover how to combine the convenience of built-in text views with the control of TextKit. We’ll show you how new APIs make it easy to extend UITextView and NSTextView with custom behaviors like line numbers and collapsible sections. We’ll also explore the TextKit architecture and walk through new caching and reuse policies for text attachments.

Previously:

• macOS Touch
• WWDC 2026 Links
• Golden Gate Menu Icons
• Golden Gate Sidebars and Toolbars
• TextKit 2: The Promised Land

Use touch to interact with Mac app windows while using Sidecar on an iPad running iPadOS 27 and Mac running macOS 27 Golden Gate.