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Next.js

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The React framework for the Web created by Vercel.

Tracked Changes
11
Pricing Shifts
0
Features & Launches
4
Last Verified Event
Sep 30, 2026

Next.js Chronological Timeline

2026
securitySep 30, 2026
96% Verified

September 2026 Security Release

Next.js has released a security-focused update for the September 2026 cycle. This release addresses identified vulnerabilities within the framework's core codebase.

Before: The framework contained unpatched security vulnerabilities present in the previous version.
After: The framework includes security patches addressing identified vulnerabilities as of September 2026.
View full change record & proof ➔
product launchSep 28, 2026
97% Verified

Next.js 15 Releases Turbopack for Dev by Default and React 19 Support

Vercel released Next.js 15, enabling the Rust-based Turbopack bundler by default for local development with up to 96% faster code startup.

Before: Development server used Webpack by default; headers() and cookies() were synchronous APIs.
After: Turbopack default dev bundler; headers(), cookies(), and params are now asynchronous Promises.
View full change record & proof ➔
securitySep 23, 2026
96% Verified

Upcoming Next.js September Security Release

Next.js has scheduled a security-focused software release for September 30, 2026. This update will address identified vulnerabilities within the framework's codebase.

Before: Current Next.js versions containing unpatched security vulnerabilities.
After: Next.js versions patched against identified security vulnerabilities as of September 30, 2026.
View full change record & proof ➔
securitySep 22, 2026
96% Verified

Next.js Security Update for a Critical Upstream Issue

Next.js released an out-of-band security patch on September 22, 2026. This update addresses a critical vulnerability originating from an upstream dependency.

Before: Next.js applications were exposed to a critical upstream vulnerability.
After: Next.js applications are patched against the identified critical upstream security flaw.
View full change record & proof ➔
securitySep 21, 2026
96% Verified

Upcoming Next.js Security Update for a Critical Upstream Issue

Next.js versions 16.3.6 and 15.5.26 are scheduled for release on September 22, 2026. These releases address a critical vulnerability originating from an upstream dependency.

Before: Next.js versions 16.3.5 and 15.5.25 and earlier are exposed to a critical upstream security vulnerability.
After: Next.js versions 16.3.6 and 15.5.26 will contain the patched upstream dependency to mitigate the identified security risk.
View full change record & proof ➔
featureSep 4, 2026
96% Verified

How we closed 1,500 GitHub issues in one month

The Next.js team deployed an autonomous AI agent to triage, verify, and resolve 1,500 legacy GitHub issues. This process utilized automated research to validate the status of long-standing backlog items.

Before: Manual triage and verification of GitHub issues by human maintainers.
After: Automated AI-assisted triage and resolution of 1,500 legacy GitHub issues.
View full change record & proof ➔
featureSep 3, 2026
96% Verified

How Turbopack chunks your JavaScript

Next.js 16.3 introduces experimental features specifically designed to optimize Turbopack's JavaScript chunking mechanism. These updates enable more efficient code sharing across pages to reduce initial page load times.

Before: Turbopack utilized standard chunking algorithms that lacked specific experimental optimizations for cross-page code sharing in previous versions.
After: Next.js 16.3 includes experimental features for advanced Turbopack chunking to improve page load performance and cross-page code reuse.
View full change record & proof ➔
securityAug 25, 2026
96% Verified

August 2026 Security Release

Next.js has released a security-focused update for the August 2026 cycle. This release addresses undisclosed vulnerabilities within the framework's core codebase.

Before: Next.js versions prior to the August 2026 release contained unpatched security vulnerabilities.
After: Next.js versions updated to the August 2026 security release include patches for identified security flaws.
View full change record & proof ➔
securityAug 25, 2026
96% Verified

Update: August Next.js Security Release

The scheduled August security release for Next.js has been rescheduled to August 25, 2026. This adjustment shifts the deployment timeline for the upcoming security patches.

Before: The security release was scheduled for a later date in August 2026.
After: The security release is now officially scheduled for August 25, 2026.
View full change record & proof ➔
securityAug 20, 2026
96% Verified

Upcoming Next.js August Security Release

Next.js has scheduled a security-focused update for release on August 26, 2026. This release is intended to address vulnerabilities within the framework's codebase.

Before: Current Next.js versions containing unpatched security vulnerabilities or potential attack vectors.
After: Next.js versions patched with security fixes released on August 26, 2026.
View full change record & proof ➔
product launchAug 18, 2026
96% Verified

Building App-like Experiences with Next.js 16.3

Next.js 16.3 introduces native support for Instant Navigations and optimistic updates. The release enables persistent live client state management alongside server-rendered data.

Before: Developers relied on third-party libraries or custom implementations for optimistic UI updates and complex client-side state persistence during navigation.
After: Next.js 16.3 provides built-in primitives for Instant Navigations, optimistic updates, and live client state management.
View full change record & proof ➔

Complete Next.js Change Log Index

DateChange TitleTypeImpactDetails
Sep 30, 2026September 2026 Security Releasesecurity9/10View ➔
Sep 28, 2026Next.js 15 Releases Turbopack for Dev by Default and React 19 Supportproduct_launch9/10View ➔
Sep 23, 2026Upcoming Next.js September Security Releasesecurity8/10View ➔
Sep 22, 2026Next.js Security Update for a Critical Upstream Issuesecurity10/10View ➔
Sep 21, 2026Upcoming Next.js Security Update for a Critical Upstream Issuesecurity9/10View ➔
Sep 4, 2026How we closed 1,500 GitHub issues in one monthfeature6/10View ➔
Sep 3, 2026How Turbopack chunks your JavaScriptfeature7/10View ➔
Aug 25, 2026August 2026 Security Releasesecurity9/10View ➔
Aug 25, 2026Update: August Next.js Security Releasesecurity8/10View ➔
Aug 20, 2026Upcoming Next.js August Security Releasesecurity8/10View ➔
Aug 18, 2026Building App-like Experiences with Next.js 16.3product_launch9/10View ➔