Google Chrome Update 2026: Chrome 145 Arrives with AI Agents, Critical Security Fixes, and HTTPS Warnings on the Horizon
Google has kicked off 2026 with one of the most significant updates to its Chrome browser in years. The release of Chrome 145 in February introduces groundbreaking AI features, critical security patches for a zero-day vulnerability under active attack, and a roadmap for mandatory HTTPS enforcement later this year .
Whether you're a casual user, a web developer, or an SEO professional, here is everything you need to know about the Google Chrome update for 2026.
Chrome 145: What's New in the February 2026 Release
Google began rolling out Chrome 145 to the stable channel on February 10, 2026 . This update is packed with features that enhance performance, security, and user experience.
1. AI-Powered Browsing: Gemini Integration and "Auto Browse"
The biggest headline in the Chrome 145 update is the deep integration of Gemini AI. Chrome is evolving from a passive tool into an active agent that can perform tasks on your behalf .
AI Side Panel: A new persistent sidebar allows users to interact with Gemini while browsing. It can summarize product reviews, find calendar openings, or answer questions about the current page without switching tabs .
Auto Browse (AI Agent): For AI Pro and Ultra subscribers, Chrome can now handle multi-step tasks. It can plan vacations by researching flights and hotels, fill out tedious online forms, and even complete shopping transactions by navigating different retailer sites .
Universal Commerce Protocol (UCP): To make AI shopping work seamlessly, Google has partnered with Shopify, Wayfair, and Target to develop UCP—an open standard that allows AI agents to navigate storefronts and complete checkouts on your behalf .
Nano Banana Integration: Users can now edit images directly in the browser using text prompts, thanks to the integration of Google's viral image editing model .
2. Security Enhancements
Device Bound Session Credentials: Chrome 145 introduces a new layer of protection that binds sessions to your specific device. This makes it significantly harder for attackers to use stolen cookies or session data on another machine .
Local Network Access Restrictions: The browser now applies finer permissions for websites attempting to access devices on your local network, reducing the risk of intranet attacks .
3. Developer and CSS Features
For web developers, Chrome 145 brings long-awaited controls :
Text Justify Control: The new
text-justifyCSS property gives designers precise control over how text spacing behaves when justified.Percentage Values for Letter/Word Spacing: Typography can now scale responsively with percentage-based spacing values.
Improved Multi-Column Layouts: The
column-wrapandcolumn-heightproperties allow for better vertical and 2D column layouts.Overscroll Effects: Nested scrollable elements now show elastic overscroll effects, reducing the need for custom JavaScript.
4. Privacy and Tracking Prevention
Reduced User-Agent Strings by Default: Chrome 145 has fully removed the old UserAgentReduction policy. All browsers now send reduced user-agent strings by default. Websites requiring detailed device information must use the more private User-Agent Client Hints (UA-CH) API .
Clipboard Monitoring Protection: The
clipboardchangeevent now requires user activation or explicit permission, preventing unauthorized apps from silently watching your clipboard .
Urgent Security Update: Patch This Zero-Day Now
If you haven't updated to the latest version of Chrome, stop and update immediately.
On February 15, 2026, Google confirmed that a high-severity zero-day vulnerability, tracked as CVE-2026-2441, is being actively exploited in the wild .
The Flaw: A "use-after-free" bug in Chrome's CSS engine. An attacker can create a malicious webpage that triggers the flaw, allowing them to execute arbitrary code on your device .
Patched Versions:
Following this, Google released another security update on February 18, 2026, patching three additional vulnerabilities, including two more "High" severity flaws in PDFium and the V8 engine (CVE-2026-2648, CVE-2026-2649) .
How to Update: Go to More (three dots) > Help > About Google Chrome. Chrome will automatically check for updates and install the latest secure version .
The Future: Chrome's 2026 Roadmap
Beyond the immediate Chrome 145 release, Google has an aggressive roadmap for the rest of 2026 that will impact every website owner and user.
The End of HTTP: "Always Use Secure Connections"
Starting in 2026, Google is forcing the hand on web security .
April 2026 (Chrome 147): The "Always Use Secure Connections" feature will be enabled by default for over 1 billion users who have opted into "Enhanced Safe Browsing" .
October 2026 (Chrome 154): The setting will be enabled by default for all Chrome users .
The Impact: When a user tries to visit an HTTP (non-HTTPS) site, Chrome will display a full-page, bypassable warning explaining the security risk before the page loads . While technically bypassable, this friction is expected to be a "conversion killer" for sites that haven't migrated to HTTPS .
Exemptions: The warning will not apply to private networks (like local IP addresses) or internal hostnames, as these are considered lower-risk environments .
Upcoming Enterprise and Developer Changes
According to Google's enterprise release notes, the following changes are on the horizon :
Post-Quantum Cryptography: Chrome will add support for X25519Kyber768 key encapsulation for TLS to protect against future quantum computing threats.
XSLT Deprecation: Google plans to deprecate and remove support for XSLT.
macOS Support Drop: Chrome will end support for macOS 12 (Monterey) later this year.
Why This Matters for SEO and Website Owners
The 2026 Chrome updates present both opportunities and existential threats for digital marketers.
1. The HTTPS Deadline is Real
As SEO expert Jinendra Singh warned on LinkedIn, the October 2026 HTTPS enforcement is not just a security update—it's a "technical deadline that directly impacts revenue" . If your site still serves content over HTTP:
Users will face a frightening security warning before they see your content.
Brand trust will erode as Chrome flags your site as "not secure."
Action Item: Audit your entire domain, including legacy subdomains and forgotten redirects, to ensure everything is fully secured with HTTPS before April 2026 .
2. The Rise of AI Agents Changes Visibility
With Chrome now featuring AI agents like "Auto Browse," users may no longer need to click through to websites to complete tasks . As Mark Williams-Cook noted in his Moz AMA, LLMs and AI browsers are becoming "influence channels" rather than direct traffic sources . A brand can win a customer (like choosing a service provider) without that customer ever visiting the website .
Action Item: Focus on "human content"—content that reflects lived experience, opinion, and storytelling—which AI cannot replicate . Your reputation in AI summaries may be more important than your click-through rate.
3. Privacy is Permanent
The removal of detailed User-Agent strings means traditional device fingerprinting is dead . Marketers must rely on User-Agent Client Hints or, better yet, focus on first-party data strategies.
Summary: Key Takeaways from the Google Chrome Update 2026
How to Stay Protected and Prepared
Update Chrome Today: Ensure you are on version 145.0.7632.75 or higher to patch the active zero-day .
Migrate to HTTPS Now: Do not wait for the October deadline. Test your site with Chrome's "Always Use Secure Connections" setting manually (
chrome://settings/security) to see what your users will experience .Adapt for AI: Start thinking about how your brand appears in AI-generated summaries. Optimize for clarity and structured data, and build direct community relationships .
The browser wars are back, and Chrome is leading the charge into an AI-powered, hyper-secure future. The question is: is your website ready for it?

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