github remix-run/remix remix@2.0.0
v2.0.0
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latest releases: v0.0.0-nightly-417ecc42b-20241109, remix@2.14.0, @remix-run/testing@2.14.0...
14 months ago

Remix v2

We're so excited to release Remix v2 to you and we really hope this upgrade is one of the smoothest framework upgrades you've ever experienced! That was our primary goal with v2 - something we aimed to achieve through a heavy use of deprecation warnings and Future Flags in Remix v1.

If you are on the latest 1.x version and you've enabled all future flags and addressed all console warnings, then our hope is that you are 90% of the way to being upgraded for v2. There are always going to be a few things that we can't put behind a flag (like breaking type changes) or come up at the very last moment and don't have time to add as a warning or flag in 1.x.

If you're not yet on the latest 1.x version we'd recommend first upgrading to that and resolving any flag/console warnings: 

> npx upgrade-remix 1.19.3

Breaking Changes

Below is a very concise list of the breaking changes in v2.

  • For the most thorough discussion of breaking changes, please read the Upgrading to v2 guide. This document provides a comprehensive walkthrough of the breaking changes that come along with v2 - and instructions on how to adapt your application to handle them
  • For additional details, you can refer to the Changes by Package section below

Upgraded Dependency Requirements

Remix v2 has upgraded it's minimum version support for React and Node and now officially requires:

Removed Future Flags

The following future flags were removed and their behavior is now the default - you can remove all of these from your remix.config.js file.

  • v2_dev - New dev server with HMR+HDR (#7002)
    • If you had configurations in future.v2_dev instead of just the boolean value (i.e., future.v2_dev.port), you can lift them into a root dev object in your remix.config.js
  • v2_errorBoundary - Removed CatchBoundary in favor of a singular ErrorBoundary (#6906)
  • v2_headers - Altered the logic for headers in nested route scenarios (#6979)
  • v2_meta - Altered the return format of meta() (#6958)
  • v2_normalizeFormMethod - Normalize formMethod APIs to uppercase (#6875)
  • v2_routeConvention - Routes use a flat route convention by default now (#6969)

Breaking Changes/API Removals

With deprecation warnings

The following lists other breaking changes/API removals which had deprecation warnings in Remix v1. If you're on the latest 1.19.3 release without any console warnings, then you're probably good to go on all of these!

Without deprecation warnings

Unfortunately, we didn't manage to get a deprecation warning on every breaking change or API removal 🙃. Here's a list of remaining changes that you may need to look into to upgrade to v2:

  • remix.config.js
  • @remix-run/cloudflare
    • Remove createCloudflareKVSessionStorage (#6898)
    • Drop @cloudflare/workers-types v2 & v3 support (#6925)
  • @remix-run/dev
    • Removed REMIX_DEV_HTTP_ORIGIN in favor of REMIX_DEV_ORIGIN (#6963)
    • Removed REMIX_DEV_SERVER_WS_PORT in favor of dev.port or --port (#6965)
    • Removed --no-restart/restart flag in favor of --manual/manual (#6962)
    • Removed --scheme/scheme and --host/host in favor of REMIX_DEV_ORIGIN instead (#6962)
    • Removed the codemod command (#6918)
  • @remix-run/eslint-config
    • Remove @remix-run/eslint-config/jest config (#6903)
    • Remove magic imports ESLint warnings (#6902)
  • @remix-run/netlify
  • @remix-run/node
    • fetch is no longer polyfilled by default - apps must call installGlobals() to install the polyfills (#7009)
    • fetch and related APIs are no longer exported from @remix-run/node - apps should use the versions in the global namespace (#7293)
    • Apps must call sourceMapSupport.install() to setup source map support
  • @remix-run/react
    • Remove unstable_shouldReload in favor of shouldRevalidate (#6865)
  • @remix-run/serve
    • remix-serve picks an open port if 3000 is taken and PORT is not specified (#7278)
    • Integrate manual mode (#7231)
    • Remove undocumented createApp Node API (#7229)
    • Preserve dynamic imports in remix-serve for external bundle (#7173)
  • @remix-run/vercel
    • The @remix-run/vercel adapter has been removed in favor of out of the box functionality provided by Vercel (#7035)
  • create-remix
    • Stop passing isTypeScript to remix.init script (#7099)
  • remix
    • Removed magic exports (#6895)

Breaking Type Changes

  • Removed V2_ prefixes from future.v2_meta types as they are now the default behavior (#6958)
    • V2_MetaArgs -> MetaArgs
    • V2_MetaDescriptor -> MetaDescriptor
    • V2_MetaFunction -> MetaFunction
    • V2_MetaMatch -> MetaMatch
    • V2_MetaMatches -> MetaMatches
    • V2_ServerRuntimeMetaArgs -> ServerRuntimeMetaArgs
    • V2_ServerRuntimeMetaDescriptor -> ServerRuntimeMetaDescriptor
    • V2_ServerRuntimeMetaFunction -> ServerRuntimeMetaFunction
    • V2_ServerRuntimeMetaMatch -> ServerRuntimeMetaMatch
    • V2_ServerRuntimeMetaMatches -> ServerRuntimeMetaMatches
  • The following types were adjusted to prefer unknown over any and to align with underlying React Router types (#7319):
    • Renamed the useMatches() return type from RouteMatch to UIMatch
    • Renamed LoaderArgs/ActionArgs to LoaderFunctionArgs/ActionFunctionArgs
    • AppData changed from any to unknown
    • Location["state"] (useLocation.state) changed from any to unknown
    • UIMatch["data"] (useMatches()[i].data) changed from any to unknown
    • UIMatch["handle"] (useMatches()[i].handle) changed from { [k: string]: any } to unknown
    • Fetcher["data"] (useFetcher().data) changed from any to unknown
    • MetaMatch.handle (used in meta()) changed from any to unknown
    • AppData/RouteHandle are no longer exported as they are just aliases for unknown

New Features

  • New create-remix CLI (#6887)
    • Most notably, this removes the dropdown to choose your template/stack in favor of the --template flag and our ever-growing list of available templates
    • Adds a new --overwrite flag (#7062)
    • Supports the bun package manager (#7074)
  • Detect built mode via build.mode (#6964)
  • Support polyfilling node globals via serverNodeBuiltinsPolyfill.globals/browserNodeBuiltinsPolyfill.globals (#7269)
  • New redirectDocument utility to redirect via a fresh document load (#7040, #6842)
  • Add error to meta params so you can render error titles, etc. (#7105)
  • unstable_createRemixStub now supports adding meta/links functions on stubbed Remix routes (#7186)
    • unstable_createRemixStub no longer supports the element/errorElement properties on routes. You must use Component/ErrorBoundary to match what you would export from a Remix route module.

Other Notable Changes

  • Remix now uses React Router's route.lazy method internally to load route modules on navigations (#7133)
  • Removed the @remix-run/node atob/btoa polyfills in favor of the built-in versions (#7206)
  • Decouple the @remix-run/dev package from the contents of the @remix-run/css-bundle package (#6982)
    • The contents of the @remix-run/css-bundle package are now entirely managed by the Remix compiler. Even though it's still recommended that your Remix dependencies all share the same version, this change ensures that there are no runtime errors when upgrading @remix-run/dev without upgrading @remix-run/css-bundle.
  • remix-serve now picks an open port if 3000 is taken (#7278)
    • If PORT env var is set, remix-serve will use that port
    • Otherwise, remix-serve picks an open port (3000 unless that is already taken)
  • Updated dependencies:

Changes by Package

Full Changelog: 1.19.3...2.0.0

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