Andrew ClarkandGitHub 0e1b6d6afc Track vary params for segments without server-side param access (#88998) ...

Based on:

- https://github.com/vercel/next.js/pull/88834
- https://github.com/vercel/next.js/pull/88989

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This implements a partial "vary params" optimization for the segment
cache. When a segment doesn't access params on the server, its
prefetched data can be reused across different param values.

Two cases are handled:
1. Segments without a user-provided layout (only loading.tsx or nothing)
2. Segments with a 'use client' layout

The server now includes a varyParams field in segment prefetch
responses. When varyParams is an empty Set, the client re-keys the cache
entry with Fallback for all param values, making it reusable across
different params.

This is a stepping stone toward full vary params tracking where Server
Components would track which specific params they access during
rendering.

2026-01-29 17:04:21 -05:00

..

link-accordion.tsx

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