Support Next.js v16

[mktktmr]

resolve #50

Thank you for developing such a tremendously useful library.

As for the subject at hand, I reviewed both the official blog post announcing the Next.js v16 release (https://nextjs.org/blog/next-16#breaking-changes-and-other-updates) and the presentation that explains how this library works (https://speakerdeck.com/ypresto/cancel-next-js-page-navigation-full-throttle). Based on that investigation, I confirmed that this library remains compatible with Next.js v16 (#51 (comment)).

Due to permission restrictions I wasn’t able to run the GitHub Actions workflow, but the local E2E suite passes successfully.

$ pnpm e2e

> [email protected] e2e /Users/mktktmr/src/next-navigation-guard
> playwright test


Running 78 tests using 4 workers
  78 passed (31.4s)

To open last HTML report run:

  pnpm exec playwright show-report

Any help with review, additional commits, or cutting a release would be greatly appreciated.

[mktktmr]

Compatibility investigation with Next.js v16

Quick take

• next-navigation-guard working on Next 16.
  Details reviewed
• App Router interception (src/components/InterceptAppRouterProvider.tsx, src/hooks/useInterceptedAppRouter.ts) still works: AppRouterContext and the AppRouterInstance API in [email protected] remain unchanged.
• Pages Router interception (src/components/InterceptPagesRouterProvider.tsx, src/hooks/useInterceptedPagesRouter.ts) stays compatible; RouterContext and NextRouter expose the same methods.
• Link interception (src/hooks/useInterceptLinkClicks.ts) continues to be required. The Next 16 next/link implementation still drives navigation through the shared router context, so both the wrapped router and the DOM fallback behave as before.
• History augmentation (src/hooks/useInterceptPopState.ts, src/utils/historyAugmentation.tsx) survives the release: HistoryState is still an object we can spread. Adding a null-guard would future-proof us in case Next ever emits null.

Release-note items to keep in mind

• Runtime baseline jumps to Node 20.9 and TypeScript ≥5.1; update CI/example environments accordingly.
• Sync variants of params, searchParams, cookies(), etc., are gone. We don’t call them in the library, but documentation/examples should use the async forms.
• Turbopack becomes the default bundler. No direct impact here, but build tooling/log output will differ.
• next lint command was removed. We already rely on external tooling, so no action needed.