* Changed the version of node from 8 to 10

* fix lint errors

* Only add static files route if folder exists

* Remove extra import

* Don't add script tags for css files on client side navigation with granular chunks

* Filter for JS, instead of against CSS

* Simplify Build Output

* Remove noop tests

* Drop ⚡

* Remove bolding

Fixes #9284

* Add Patternfly example

* Fix lint

* Add missing space

* Remove trailing comma

* Polyfilling fetch and object-assign

* Polyfilling corejs object-assign

* Adding object-assign in polyfills.js. IE11 does not support Object.assign

* Fixing failing test

* Updating object.assign polyfill to fix aliasing

* Updating test case value to match new build stats

* Increasing the size of default build to 225kb

* Fixing defer-script test case to not include polyfill.js

* Revert README.md

* Re-design the polyfill approach based on PR feedback

* Adding comment and fixing test case

* Rename polyfills chunk

* Extract aliases into helper

* Remove extra new line

* Fix TypeScript typings

* Adding _internal_fetch alias

* Adjust build manifest plugin

* Build manifest plugin changes - adding a separate entry for polyfills

* Rename polyfills entry in build-manifest.json

* Remove old comment

* Fix TS

* Set key

* Polyfills already added

* Filtring polyfill.module.js

* Fix test

* Add __internal_fetch to alias rule

* Adjust name

* bump size

* ignore polyfills

* sigh

* Disallow iSSG revalidation period of zero

* Fix revalidation period in test

* Add initial bit for plugins

* Add checks for needed metadata values

* Add test

* Initial plugins changes

* Add handling for _app middleware

* Add loading of _document middleware and
handling of multiple default export syntaxes

* Fix insert order for middleware member expression

* Remove early return from middleware plugin from testing

* Add tests for current plugin middlewares

* Update test plugin package.json

* Update handling for class default export

* Update to use webpack loader instead of babel
plugin, remove redundant middleware naming, and add field for required env for plugins

* Add middleware to support material-ui use case
and example material-ui plugin

* Update tests and remove tests stuff from google analytics plugin

* Remove old plugin suite

* Add init-server middleware

* Exit hard without stack trace when error in collecting plugins

* Add on-error-client and on-error-server and update
to run init-server with next-start in serverless mode

* Update init-client for google analytics plugin

* Add example Sentry plugin and update with-sentry-simple

* Remove middleware field/folder and use src dir for plugins

* Add post-hydration middleware and update
material-ui plugin

* Put plugins code behind flag

* Update chromedriver

* Revert "Update chromedriver"

This reverts commit 1461e978e677f7da05e29e0415ec614a04bf65f9.

* Update lock file

* Remove un-needed _app for sentry example

* Add auto loading of scoped packages, add plugins
config for manually listing plugins, and update
to only collect plugins once

* Update example plugins

* Expose plugins' config

* Rename plugin lifecycles and add babel-preset-build

* Rename other methods with unstable

* Update log when plugin config overrides auto-detecting

* Add handling for exportTrailingSlash for iSSG pages

* Update index.test.js

* Don't rely on page-config plugin to detect iSSG usage

* Make sure to only update sprStatus if page file

* Remove dead-code elimination for iSSG code

* Revert next-page-config.ts

* Update index.js

* Update index.test.js

* Fix example active-class-anme: Add support for children of ActiveLink without a className.

* Update examples/active-class-name/components/ActiveLink.js
Co-Authored-By: NLuis Alvarez D. <luis@zeit.co>

* Update _app documentation to reflect no longer needing next/app

* Remove lint-staged

close #8830

* Start the modern Child Compiler earlier during builds

* fix child compiler errors not bubbling

* closes #8989

fix

closes #8989

* test

* Update next.config.js

* Revert page1.js

* Revert page2.js

* Delete page4.js

* Delete page3.js

* Update index.test.js

* Revert index.test.js

* Revert next.config.js

* Add experimental config for React Mode

* Use latest types

* Use latest types

* Add next-news example

* Update components

* Use getStaticProps

* Move directory

* Throw Error for next.config.ts

Ref: https://github.com/zeit/next-plugins/issues/555

* Check for .js else .ts

* Update Error Message
Co-Authored-By: NAlexander Kachkaev <alexander@kachkaev.ru>

* Add test case when both next.config.js and next.config.ts exist.

* Remove extra constant CONFIG_FILE_TS and Add check for ts/tsx/json

* Rename test config parameter and add tsx and json files

* Change messege

* change value

* Update next.config.json

* Update next.config.json

* Change message  and add jsx filter

* Adjust

* Simplify test

* adjust

* Apply format to webpack config

* hit all files

This adds a test for PR #8924.

* Improve serverless build performance

Next's serverless build uses a custom resolver, injected the via Webpack's `externals` option that delegates out to `resolve-request` to more aggressively pull node modules into the serverless bundles.

When profiling a large Next.js application, I noticed an excessive number of filesystem calls near the end of the build. I narrowed this down to the serverless compiler pass, and eventually the custom resolver function that is the subject of this PR.  As it turns out, around half of the calls to the `externals` custom resolver function are for a `request` path that is a relative import. Next doesn't have any specific logic to apply to relative imports - it only needs to special-case bare module resolution.

Adding a simple bypass for relative module resolution reduces the number of blocking filesystem-bound `resolveRequest()` calls by 50% on a certain well-known Next.js website. This also results in a 30% reduction in production build times for incremental builds.

* Explain more in the comment

* Add example for Framer Motion

* Prevent scroll on route change

* Replace hook with more robust useId hook

* Improve scroll behavior

* Remove custom hook in favor of gitInitialProps

* Update framer-motion, react

* Update readme

* Fix lint errors