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A Crucial Decision for macOS Big Sur Users
Google has just made a pivotal announcement that affects millions of Mac users: Chrome will no longer support macOS 11 (Big Sur) starting with version 139, which rolls out on July 30. This means users still on Big Sur face a critical decision—either upgrade to a newer macOS or stop receiving Chrome updates altogether. For users tied to older Mac hardware, this change could force a switch to alternative browsers or even the purchase of a new machine. Let’s dive into the details, timeline, and impact of this major shift—and what it means for your security and browsing experience.
Google’s Major Shift on macOS Big Sur Compatibility
If you’re using Google Chrome on macOS Big Sur, there’s a change you can’t ignore. Google has officially confirmed via its Chrome Platform Status page that Chrome 138 will be the last version compatible with macOS 11. Starting with Chrome 139, releasing on July 30, the browser will require macOS 12 or newer.
The reasoning is simple: Apple has already ended official support for macOS 11, and Google is aligning with that lifecycle to maintain security and performance standards. While Chrome will still function on Big Sur, users will receive a permanent warning banner and no further updates—no new features, no bug fixes, and critically, no security patches.
This marks a significant fork in the road for users stuck on older hardware. If your Mac can’t upgrade past Big Sur, you’ll be forced to continue using an outdated browser, or consider switching to another one that still supports macOS 11—for now. But even that is a temporary fix, as most modern browsers are following the same trend of dropping legacy OS support.
The change will also affect new installations—Chrome 139 and later simply won’t install on Big Sur at all. So even reinstalling isn’t an option unless you upgrade your operating system.
This isn’t just about convenience—it’s about online safety. Browsers are a primary line of defense against cyber threats, and an outdated Chrome means you’re exposed. Google’s move sends a clear signal: staying secure means staying current.
What Undercode Say: 🧠 Deep Dive Into the Implications
1. Security vs. Accessibility: A Growing Divide
Chrome’s decision reflects a broader industry pattern: prioritizing up-to-date systems over backward compatibility. While it enhances security and performance, it excludes users on older hardware—many of whom still rely on Big Sur due to Mac hardware limitations. This creates a new tech divide where security is gated by affordability and access to newer machines.
2. The Lifecycle Reality of Operating Systems
macOS 11 was released in November 2020, and with Apple now focused on newer versions like macOS 14 (Sonoma), third-party developers like Google are gradually phasing out support. This highlights a harsh truth: OS lifespans are shrinking, and support windows are tightening. The expectation that users constantly upgrade—hardware and software alike—is becoming normalized.
3. Alternative Browsers—Temporary Lifelines
For users stuck on Big Sur, options remain but are shrinking. Browsers like Firefox or Brave may continue supporting macOS 11 for a while longer, but these are temporary reprieves. Once security and development costs outweigh user base size, they too will follow Chrome’s lead.
4. The Enterprise Dilemma
Businesses still running fleets of older Macs will be affected heavily. Many corporate environments delay OS upgrades due to app compatibility or IT constraints. Now, their default browser becomes outdated—risking security breaches or compliance issues.
5. Forced Obsolescence?
Some users might view this as a form of soft obsolescence, pushing them toward hardware upgrades or expensive software alternatives. If macOS 12 isn’t compatible with your Mac, you’re cornered into buying a new device—raising ethical questions about sustainability in tech.
6. Impact on Developers & Web Standards
Web developers will soon be able to assume macOS 12+ environments when building or testing for Chrome. This streamlines development but may neglect edge cases where older macOS users still exist. Smaller apps or indie developers might feel pressure to drop Big Sur compatibility, further accelerating its decline.
7. User Experience After July 30
Post-Chrome 138, users on Big Sur will still be able to browse, but not securely. Phishing attacks, malware, and browser exploits often target out-of-date software. Chrome’s visible warning bar is a gentle push—but the clock is ticking on usability.
✅ Fact Checker Results
✅ Chrome 138 is confirmed as the last version for macOS 11.
✅ Chrome 139 launches on July 30 and requires macOS 12+.
✅ Continued usage on Big Sur is possible, but with no updates or security patches.
🔮 Prediction
Within the next 12 months, most major browsers—Firefox, Brave, and even Microsoft Edge—will likely end support for macOS 11, aligning with Apple’s lifecycle strategy. As more cloud-based apps demand modern OS features, macOS 11 users will increasingly experience compatibility issues. By early 2026, Big Sur will be largely obsolete in the browser space, pushing users toward new hardware or Linux-based alternatives for legacy support.
References:
Reported By: 9to5mac.com
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