WhatsApp Liquid Glass Mac App: Locked Chats, Communities Tab Explained

WhatsApp has started rolling out its Liquid Glass redesign to the Mac app, making Mac the last major Apple platform to receive the update. The translucent visual overhaul is the obvious draw, but the changes with the most practical effect on daily use are structural: a privacy gap that left sensitive chats exposed on shared Macs is being closed, and navigation that required too much guesswork has been rebuilt from scratch.

Before this update, locked chats on Mac sat in the main chat list alongside every other conversation, with no visual distinction and no authentication required to open them. On iPhone, those same chats have long been gated behind Face ID or a passcode in a dedicated section, according to WABetaInfo. The redesign addresses that gap, moving locked chats into a protected sidebar section that requires authentication before access is granted.

The rollout is gradual. Not every user will see the new interface immediately, and WhatsApp has not published a timeline for when it will reach everyone.

WhatsApp for Mac Liquid Glass update: what actually changed

Liquid Glass is a core element of Apple's macOS 26 Tahoe design language. It works as a translucent surface that reflects and refracts light, picking up color from surrounding content to create a sense of depth, as Apple described at WWDC25. Under that design system, sidebars appear as a pane of glass floating above the window's content rather than sitting flush against the edge, creating visual hierarchy through layering instead of hard borders.

In WhatsApp for Mac, the Liquid Glass treatment is most visible in three places: the sidebar, the chat input bar at the bottom of conversations, and the attachment menu that opens when tapping the "+" button. All three now carry the same frosted, translucent appearance already present in the iPhone app, WABetaInfo reported this week. The material is also adaptive, adjusting its appearance based on the brightness of content behind it, switching between lighter and darker treatments as context changes, per Apple's WWDC25 documentation.

The visual changes bring the Mac app in line with iPhone and iPad. That cross-device consistency matters, but it is not the most consequential part of what changed.

Why these changes hit differently on Mac

The context for this update is worth dwelling on, because the same features land differently on a shared desktop machine than on a personal phone.

Start with the navigation problem. The old Mac sidebar showed only bare, unlabeled icons. Users had to guess, or simply remember, what each icon led to, WABetaInfo noted. On a phone, that kind of ambiguity is forgivable because navigation is mostly hidden until you reach for it. On a Mac, the sidebar sits visible and persistent all day. Unlabeled icons in permanent view are not a quirk; they are a recurring source of friction. The redesign pairs every icon with a text label, a fix that takes roughly zero seconds to understand but delivers a meaningful reduction in cognitive load over the course of a workday.

The communities change follows similar logic. Previously, finding a community on Mac meant scrolling through the main chat list until it appeared. A dedicated sidebar tab now filters directly to them, WABetaInfo confirmed. That is a one-tap fix to what was an unnecessary detour, and on a desktop where users are more likely to be managing larger group structures, the upgrade from buried to prominent is more than cosmetic.

The locked chats change is the most substantive, and here the Mac-specific context matters most. Phones tend to stay with their owner. A shared Mac at a home, an office, or a co-working space does not. Under the old design, a user who had locked specific WhatsApp conversations expecting privacy would have found those chats entirely accessible to anyone who sat down and opened the app. No lock screen, no authentication prompt, no visual cue that the chats were supposed to be protected at all. The redesign adds a dedicated sidebar section for locked chats and gates it behind authentication, WABetaInfo confirmed. The feature now behaves the way users who locked those chats on their phones almost certainly assumed it already behaved on their Mac.

One detail remains unconfirmed in available reporting: the specific authentication method the Mac version uses. Touch ID, a device passcode, Apple Watch, or a WhatsApp-specific prompt are all plausible options, but none has been specified. That is worth checking when the update arrives, particularly for anyone using WhatsApp on a machine where multiple people have accounts.

WhatsApp Mac app redesign: the rollout timeline

The jump from internal development to public availability happened quickly. As recently as early June, the Mac redesign was not available even to beta testers and could only be previewed through internal build activation, WABetaInfo reported at the time. By this week, it had started reaching some App Store users on version 26.27.73.

That pattern tracks with how the broader Liquid Glass rollout has progressed. WhatsApp began testing the iPhone redesign at small scale in October 2025 before starting a wider push months later, 9to5Mac reported. Even after that broader rollout began, many iPhone users reported waiting weeks before the new interface appeared. The Mac situation follows the same playbook: staged distribution, server-side access control, no publicly committed completion date.

The sequencing across Apple platforms tells its own story. iPhone came first, with a limited test in October 2025. iPad followed, with beta access rolling out in late June this year, 9to5Mac noted. Mac is now in the same early-access phase. The three platforms are converging on the same Liquid Glass foundation, with Mac the last to arrive.

Updating via the Mac App Store is the necessary first step, but not a sufficient one. WhatsApp is distributing the redesign in waves, and the new interface will reach accounts gradually over the coming weeks, per WABetaInfo. If the updated design is not visible after installing version 26.27.73, the app is current but the server-side flag has not reached that account. No manual trigger has been reported.

What to watch for next

Two things remain open. First, the rollout timeline. WhatsApp has given no public guidance on when the Mac redesign will reach the full user base, and based on the iPhone precedent, the gap between early access and broad availability can stretch across weeks.

Second, and more consequential for anyone who cares about the privacy upgrade, the authentication mechanism for locked chats on Mac has not been detailed. On iPhone, the equivalent feature uses Face ID or a custom passcode, WABetaInfo confirmed. The Mac has Touch ID on supported hardware, Apple Watch unlock, and standard account passwords. Which of those WhatsApp will use, and whether users will have a choice, determines how much practical protection the locked chats section actually provides. The gap in the old design was real and the fix is meaningful, but how deeply that protection holds depends on implementation details that have not yet been confirmed.

With iPhone, iPad, and Mac now converging on the same Liquid Glass foundation, WhatsApp's interface is more consistent across Apple devices than it has ever been. The open question is whether that consistency deepens over time, or whether Mac remains a step behind on the details that matter most.