Tim Neutkens 3d4d46f1c9 Enable Turbopack build filesystem cache by default (#96493) ...

## Summary

Enable `experimental.turbopackFileSystemCacheForBuild` by default in all
environments, including generic CI. Explicitly setting the option to
`false` remains the opt-out. Update the focused coverage and
documentation to match.

## Verification

- `IS_TURBOPACK_TEST=1 pnpm test-start-turbo
test/e2e/filesystem-cache/build-cache-default.test.ts`
- `pnpm prettier --with-node-modules --ignore-path .prettierignore
--check packages/next/src/server/config-shared.ts
test/e2e/filesystem-cache/build-cache-default.test.ts
docs/01-app/03-api-reference/08-turbopack.mdx
docs/01-app/03-api-reference/05-config/01-next-config-js/turbopackFileSystemCache.mdx`
- Not run: `pnpm --filter=next build` (the checkout has 11 pre-existing
TypeScript errors in unrelated files)

<!-- NEXT_JS_LLM -->

2026-08-02 11:33:33 -07:00

..

01-app

Enable Turbopack build filesystem cache by default (#96493)

2026-08-02 11:33:33 -07:00

02-pages

docs: remove PPR adapter page from Pages Router (#96316)

2026-07-29 10:03:49 -04:00

03-architecture

docs: clarify instrumentation-client polyfill loading and hydration timing (#95988)

2026-07-28 15:44:03 -04:00

04-community

docs: fix typos in contribution guide (#94375)

2026-06-05 00:03:33 +02:00

index.mdx

…