diff --git a/.changeset/pre.json b/.changeset/pre.json
index ec7d6e9e2bb..8c762790fb4 100644
--- a/.changeset/pre.json
+++ b/.changeset/pre.json
@@ -21,5 +21,16 @@
     "@remix-run/testing": "1.12.0",
     "@remix-run/vercel": "1.12.0"
   },
-  "changesets": []
+  "changesets": [
+    "eleven-plums-film",
+    "fresh-toes-shout",
+    "gorgeous-meals-rescue",
+    "healthy-beers-nail",
+    "honest-crabs-sort",
+    "lemon-humans-yell",
+    "many-pans-attack",
+    "nine-apricots-breathe",
+    "olive-jokes-invent",
+    "tame-swans-burn"
+  ]
 }
diff --git a/packages/create-remix/CHANGELOG.md b/packages/create-remix/CHANGELOG.md
index d144e53471f..dc8c662dfa2 100644
--- a/packages/create-remix/CHANGELOG.md
+++ b/packages/create-remix/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `create-remix`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/dev@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/create-remix/package.json b/packages/create-remix/package.json
index df5c403f32b..5c8c523d2a9 100644
--- a/packages/create-remix/package.json
+++ b/packages/create-remix/package.json
@@ -1,6 +1,6 @@
 {
   "name": "create-remix",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Create a new Remix app",
   "homepage": "https://remix.run",
   "bugs": {
@@ -17,7 +17,7 @@
     "create-remix": "dist/cli.js"
   },
   "dependencies": {
-    "@remix-run/dev": "1.12.0"
+    "@remix-run/dev": "1.13.0-pre.0"
   },
   "engines": {
     "node": ">=14"
diff --git a/packages/remix-architect/CHANGELOG.md b/packages/remix-architect/CHANGELOG.md
index 5ff2c3fb468..e452498a47c 100644
--- a/packages/remix-architect/CHANGELOG.md
+++ b/packages/remix-architect/CHANGELOG.md
@@ -1,5 +1,13 @@
 # `@remix-run/architect`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Fix Fetch Request creation for incoming URLs with double slashes ([#5336](https://github.com/remix-run/remix/pull/5336))
+- Updated dependencies:
+  - `@remix-run/node@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-architect/package.json b/packages/remix-architect/package.json
index 563d9fc5c84..4e6541e76ee 100644
--- a/packages/remix-architect/package.json
+++ b/packages/remix-architect/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/architect",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Architect server request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -15,7 +15,7 @@
   "typings": "dist/index.d.ts",
   "dependencies": {
     "@architect/functions": "^5.2.0",
-    "@remix-run/node": "1.12.0",
+    "@remix-run/node": "1.13.0-pre.0",
     "@types/aws-lambda": "^8.10.82"
   },
   "devDependencies": {
diff --git a/packages/remix-cloudflare-pages/CHANGELOG.md b/packages/remix-cloudflare-pages/CHANGELOG.md
index 4fd47361fd6..425ce3adcad 100644
--- a/packages/remix-cloudflare-pages/CHANGELOG.md
+++ b/packages/remix-cloudflare-pages/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/cloudflare-pages`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/cloudflare@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-cloudflare-pages/package.json b/packages/remix-cloudflare-pages/package.json
index 3cca0b2b7f9..aeebaea21f9 100644
--- a/packages/remix-cloudflare-pages/package.json
+++ b/packages/remix-cloudflare-pages/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/cloudflare-pages",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Cloudflare Pages request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -15,7 +15,7 @@
   "typings": "dist/index.d.ts",
   "module": "dist/esm/index.js",
   "dependencies": {
-    "@remix-run/cloudflare": "1.12.0"
+    "@remix-run/cloudflare": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^3.4.0",
diff --git a/packages/remix-cloudflare-workers/CHANGELOG.md b/packages/remix-cloudflare-workers/CHANGELOG.md
index 99002f87fc7..8e0d15828ce 100644
--- a/packages/remix-cloudflare-workers/CHANGELOG.md
+++ b/packages/remix-cloudflare-workers/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/cloudflare-workers`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/cloudflare@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-cloudflare-workers/package.json b/packages/remix-cloudflare-workers/package.json
index ded5f2741f0..c382affec73 100644
--- a/packages/remix-cloudflare-workers/package.json
+++ b/packages/remix-cloudflare-workers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/cloudflare-workers",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Cloudflare worker request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -16,7 +16,7 @@
   "module": "dist/esm/index.js",
   "dependencies": {
     "@cloudflare/kv-asset-handler": "^0.1.3",
-    "@remix-run/cloudflare": "1.12.0"
+    "@remix-run/cloudflare": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^3.4.0"
diff --git a/packages/remix-cloudflare/CHANGELOG.md b/packages/remix-cloudflare/CHANGELOG.md
index 3dd5ed6c8be..efac68cd992 100644
--- a/packages/remix-cloudflare/CHANGELOG.md
+++ b/packages/remix-cloudflare/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/cloudflare`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/server-runtime@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Minor Changes
diff --git a/packages/remix-cloudflare/package.json b/packages/remix-cloudflare/package.json
index aa312cd0aa3..6cb9293591a 100644
--- a/packages/remix-cloudflare/package.json
+++ b/packages/remix-cloudflare/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/cloudflare",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Cloudflare platform abstractions for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -15,7 +15,7 @@
   "typings": "dist/index.d.ts",
   "dependencies": {
     "@cloudflare/kv-asset-handler": "^0.1.3",
-    "@remix-run/server-runtime": "1.12.0"
+    "@remix-run/server-runtime": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^3.4.0"
diff --git a/packages/remix-css-bundle/CHANGELOG.md b/packages/remix-css-bundle/CHANGELOG.md
index a809f295941..bfe83bbed9f 100644
--- a/packages/remix-css-bundle/CHANGELOG.md
+++ b/packages/remix-css-bundle/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @remix-run/css-bundle
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/dev@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-css-bundle/package.json b/packages/remix-css-bundle/package.json
index 0679f2422fd..497d3c21733 100644
--- a/packages/remix-css-bundle/package.json
+++ b/packages/remix-css-bundle/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/css-bundle",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "CSS bundle href when using CSS bundling features in Remix",
   "homepage": "https://remix.run",
   "bugs": {
@@ -20,6 +20,6 @@
     "./dist/esm/server.js": "./dist/esm/browser.js"
   },
   "dependencies": {
-    "@remix-run/dev": "1.12.0"
+    "@remix-run/dev": "1.13.0-pre.0"
   }
 }
diff --git a/packages/remix-deno/CHANGELOG.md b/packages/remix-deno/CHANGELOG.md
index e307b0f9320..07e6eef7762 100644
--- a/packages/remix-deno/CHANGELOG.md
+++ b/packages/remix-deno/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/deno`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/server-runtime@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-deno/package.json b/packages/remix-deno/package.json
index 7710a61e039..afb4445402d 100644
--- a/packages/remix-deno/package.json
+++ b/packages/remix-deno/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/deno",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Deno platform abstractions for Remix",
   "homepage": "https://remix.run",
   "main": "./index.ts",
@@ -15,7 +15,7 @@
   "license": "MIT",
   "sideEffects": false,
   "dependencies": {
-    "@remix-run/server-runtime": "1.12.0",
+    "@remix-run/server-runtime": "1.13.0-pre.0",
     "mime": "^3.0.0"
   },
   "engines": {
diff --git a/packages/remix-dev/CHANGELOG.md b/packages/remix-dev/CHANGELOG.md
index b0392422710..f280426d812 100644
--- a/packages/remix-dev/CHANGELOG.md
+++ b/packages/remix-dev/CHANGELOG.md
@@ -1,5 +1,41 @@
 # `@remix-run/dev`
 
+## 1.13.0-pre.0
+
+### Minor Changes
+
+- Deprecate remix config `serverBuildTarget` in favor of a more flexible combination of the existing [publicPath](https://remix.run/file-conventions/remix-config#publicpath), [serverBuildPath](https://remix.run/file-conventions/remix-config#serverbuildpath), [serverDependenciesToBundle](https://remix.run/file-conventions/remix-config#serverdependenciestobundle) along with net new [serverMainFields](https://remix.run/file-conventions/remix-config#servermainfields), [serverConditions](https://remix.run/file-conventions/remix-config#serverconditions), [serverMinify](https://remix.run/file-conventions/remix-config#serverminify), and the un-deprecated [serverModuleFormat](https://remix.run/file-conventions/remix-config#servermoduleformat) and [serverPlatform](https://remix.run/file-conventions/remix-config#serverplatform) options. ([#5354](https://github.com/remix-run/remix/pull/5354))
+- Add unstable built-in support for PostCSS via the `future.unstable_postcss` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+- Add unstable built-in support for Tailwind via the `future.unstable_tailwind` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+
+### Patch Changes
+
+- allow tailwind.config.cjs when using `future.unstable_tailwind` ([#5358](https://github.com/remix-run/remix/pull/5358))
+- Mark Vanilla Extract files as side effects to ensure that files only containing global styles aren't tree-shaken ([#5246](https://github.com/remix-run/remix/pull/5246))
+- Support decorators in files using CSS side-effect imports ([#5305](https://github.com/remix-run/remix/pull/5305))
+- flat route fixes and enhancements ([#5228](https://github.com/remix-run/remix/pull/5228))
+
+  `app._index.tsx` and `app/index.tsx` are different routes. The first is an index route for the second, and will be rendered into the parent outlet. The second is the parent route itself.
+
+  `index.tsx` no longer has any semantic meaning for "index routes", but rather the node module resolution convention of "index modules".
+
+  `routes/app.tsx` and `routes/app/index.tsx` _are the same route_. You just moved it to a folder and made an `index.tsx` because that's how node module resolution looks for the module at `routes/app`.
+
+  If you want an index route, you use `_index`
+
+  | file name                     | route path          | layout                                     |
+  | ----------------------------- | ------------------- | ------------------------------------------ |
+  | `routes/index.tsx`            | `/index`            | root                                       |
+  | `routes/_index.tsx`           | `/`                 | root                                       |
+  | `routes/app.tsx`              | `/app`              | root                                       |
+  | `routes/app/index.tsx`        | same route as above | root                                       |
+  | `routes/app._index.tsx`       | `/app`              | `routes/app.tsx` or `routes/app/index.tsx` |
+  | `routes/app._index/index.tsx` | same route as above | `routes/app.tsx` or `routes/app/index.tsx` |
+
+- Updated dependencies:
+  - `@remix-run/server-runtime@1.13.0-pre.0`
+  - `@remix-run/serve@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Minor Changes
diff --git a/packages/remix-dev/package.json b/packages/remix-dev/package.json
index 1f27593dd8f..4a1e6b2d67d 100644
--- a/packages/remix-dev/package.json
+++ b/packages/remix-dev/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/dev",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Dev tools and CLI for Remix",
   "homepage": "https://remix.run",
   "bugs": {
@@ -29,7 +29,7 @@
     "@babel/types": "^7.20.2",
     "@esbuild-plugins/node-modules-polyfill": "^0.1.4",
     "@npmcli/package-json": "^2.0.0",
-    "@remix-run/server-runtime": "1.12.0",
+    "@remix-run/server-runtime": "1.13.0-pre.0",
     "@vanilla-extract/integration": "^6.0.2",
     "arg": "^5.0.1",
     "cacache": "^15.0.5",
@@ -71,7 +71,7 @@
     "xdm": "^2.0.0"
   },
   "devDependencies": {
-    "@remix-run/serve": "1.12.0",
+    "@remix-run/serve": "1.13.0-pre.0",
     "@types/cacache": "^15.0.0",
     "@types/gunzip-maybe": "^1.4.0",
     "@types/inquirer": "^8.2.0",
@@ -90,7 +90,7 @@
     "type-fest": "^2.16.0"
   },
   "peerDependencies": {
-    "@remix-run/serve": "^1.12.0"
+    "@remix-run/serve": "^1.13.0-pre.0"
   },
   "peerDependenciesMeta": {
     "@remix-run/serve": {
diff --git a/packages/remix-eslint-config/CHANGELOG.md b/packages/remix-eslint-config/CHANGELOG.md
index 5726b481cf9..f4fc68cbb0b 100644
--- a/packages/remix-eslint-config/CHANGELOG.md
+++ b/packages/remix-eslint-config/CHANGELOG.md
@@ -1,5 +1,7 @@
 # `@remix-run/eslint-config`
 
+## 1.13.0-pre.0
+
 ## 1.12.0
 
 ## 1.11.1
diff --git a/packages/remix-eslint-config/package.json b/packages/remix-eslint-config/package.json
index 24494564b03..aac5b8a1a8b 100644
--- a/packages/remix-eslint-config/package.json
+++ b/packages/remix-eslint-config/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/eslint-config",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "ESLint configuration for Remix projects",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
diff --git a/packages/remix-express/CHANGELOG.md b/packages/remix-express/CHANGELOG.md
index 78ffdb0a998..1751799b470 100644
--- a/packages/remix-express/CHANGELOG.md
+++ b/packages/remix-express/CHANGELOG.md
@@ -1,5 +1,13 @@
 # `@remix-run/express`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Fix Fetch Request creation for incoming URLs with double slashes ([#5336](https://github.com/remix-run/remix/pull/5336))
+- Updated dependencies:
+  - `@remix-run/node@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-express/package.json b/packages/remix-express/package.json
index baa3256469c..606ec7f63dc 100644
--- a/packages/remix-express/package.json
+++ b/packages/remix-express/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/express",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Express server request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -14,7 +14,7 @@
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "dependencies": {
-    "@remix-run/node": "1.12.0"
+    "@remix-run/node": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@types/express": "^4.17.9",
diff --git a/packages/remix-netlify/CHANGELOG.md b/packages/remix-netlify/CHANGELOG.md
index b8dd1c99828..dfa04fbf0f7 100644
--- a/packages/remix-netlify/CHANGELOG.md
+++ b/packages/remix-netlify/CHANGELOG.md
@@ -1,5 +1,13 @@
 # `@remix-run/netlify`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Fix Fetch Request creation for incoming URLs with double slashes ([#5336](https://github.com/remix-run/remix/pull/5336))
+- Updated dependencies:
+  - `@remix-run/node@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-netlify/package.json b/packages/remix-netlify/package.json
index d683d615f0d..85c836b7fdd 100644
--- a/packages/remix-netlify/package.json
+++ b/packages/remix-netlify/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/netlify",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Netlify server request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -14,7 +14,7 @@
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "dependencies": {
-    "@remix-run/node": "1.12.0"
+    "@remix-run/node": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@netlify/functions": "^1.0.0"
diff --git a/packages/remix-node/CHANGELOG.md b/packages/remix-node/CHANGELOG.md
index fb9c151b7aa..2da8238909c 100644
--- a/packages/remix-node/CHANGELOG.md
+++ b/packages/remix-node/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/node`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/server-runtime@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-node/package.json b/packages/remix-node/package.json
index 6d87df08f75..bf2d3e5d763 100644
--- a/packages/remix-node/package.json
+++ b/packages/remix-node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/node",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Node.js platform abstractions for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -15,7 +15,7 @@
   "typings": "dist/index.d.ts",
   "sideEffects": false,
   "dependencies": {
-    "@remix-run/server-runtime": "1.12.0",
+    "@remix-run/server-runtime": "1.13.0-pre.0",
     "@remix-run/web-fetch": "^4.3.2",
     "@remix-run/web-file": "^3.0.2",
     "@remix-run/web-stream": "^1.0.3",
diff --git a/packages/remix-react/CHANGELOG.md b/packages/remix-react/CHANGELOG.md
index 10bd11b3637..f53761c5ea9 100644
--- a/packages/remix-react/CHANGELOG.md
+++ b/packages/remix-react/CHANGELOG.md
@@ -1,5 +1,17 @@
 # `@remix-run/react`
 
+## 1.13.0-pre.0
+
+### Minor Changes
+
+- Add unstable built-in support for PostCSS via the `future.unstable_postcss` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+- Add unstable built-in support for Tailwind via the `future.unstable_tailwind` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+
+### Patch Changes
+
+- Improve efficiency of route manifest->tree transformation ([#4748](https://github.com/remix-run/remix/pull/4748))
+- fix(react): live reload works without `<Scripts />` ([#5339](https://github.com/remix-run/remix/pull/5339))
+
 ## 1.12.0
 
 ### Minor Changes
diff --git a/packages/remix-react/package.json b/packages/remix-react/package.json
index 4d99bc8a9ff..fc1a6dac89b 100644
--- a/packages/remix-react/package.json
+++ b/packages/remix-react/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/react",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "React DOM bindings for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -21,7 +21,7 @@
     "use-sync-external-store": "1.2.0"
   },
   "devDependencies": {
-    "@remix-run/server-runtime": "1.12.0",
+    "@remix-run/server-runtime": "1.13.0-pre.0",
     "@testing-library/jest-dom": "^5.16.2",
     "@testing-library/react": "^13.3.0",
     "abort-controller": "^3.0.0",
diff --git a/packages/remix-serve/CHANGELOG.md b/packages/remix-serve/CHANGELOG.md
index 413ed7372a3..48fa320dc06 100644
--- a/packages/remix-serve/CHANGELOG.md
+++ b/packages/remix-serve/CHANGELOG.md
@@ -1,5 +1,12 @@
 # `@remix-run/serve`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/express@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Minor Changes
diff --git a/packages/remix-serve/package.json b/packages/remix-serve/package.json
index ecf327a4ec7..38f56ed9a59 100644
--- a/packages/remix-serve/package.json
+++ b/packages/remix-serve/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/serve",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Production application server for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -17,7 +17,7 @@
     "remix-serve": "dist/cli.js"
   },
   "dependencies": {
-    "@remix-run/express": "1.12.0",
+    "@remix-run/express": "1.13.0-pre.0",
     "compression": "^1.7.4",
     "express": "^4.17.1",
     "morgan": "^1.10.0"
diff --git a/packages/remix-server-runtime/CHANGELOG.md b/packages/remix-server-runtime/CHANGELOG.md
index d5759343474..94128ebffc3 100644
--- a/packages/remix-server-runtime/CHANGELOG.md
+++ b/packages/remix-server-runtime/CHANGELOG.md
@@ -1,5 +1,16 @@
 # `@remix-run/server-runtime`
 
+## 1.13.0-pre.0
+
+### Minor Changes
+
+- Add unstable built-in support for PostCSS via the `future.unstable_postcss` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+- Add unstable built-in support for Tailwind via the `future.unstable_tailwind` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+
+### Patch Changes
+
+- Improve efficiency of route manifest->tree transformation ([#4748](https://github.com/remix-run/remix/pull/4748))
+
 ## 1.12.0
 
 ### Minor Changes
diff --git a/packages/remix-server-runtime/package.json b/packages/remix-server-runtime/package.json
index d76dcb4ddcf..8876c87f771 100644
--- a/packages/remix-server-runtime/package.json
+++ b/packages/remix-server-runtime/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/server-runtime",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Server runtime for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
diff --git a/packages/remix-testing/CHANGELOG.md b/packages/remix-testing/CHANGELOG.md
index 3e83e51ad8f..1600476f5a9 100644
--- a/packages/remix-testing/CHANGELOG.md
+++ b/packages/remix-testing/CHANGELOG.md
@@ -1,5 +1,18 @@
 # `@remix-run/testing`
 
+## 1.13.0-pre.0
+
+### Minor Changes
+
+- Add unstable built-in support for PostCSS via the `future.unstable_postcss` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+- Add unstable built-in support for Tailwind via the `future.unstable_tailwind` feature flag ([#5229](https://github.com/remix-run/remix/pull/5229))
+
+### Patch Changes
+
+- Updated dependencies:
+  - `@remix-run/react@1.13.0-pre.0`
+  - `@remix-run/node@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-testing/package.json b/packages/remix-testing/package.json
index fa2907e6916..5b4c5e4adf9 100644
--- a/packages/remix-testing/package.json
+++ b/packages/remix-testing/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/testing",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Testing utilities for Remix apps",
   "homepage": "https://remix.run",
   "bugs": {
@@ -16,8 +16,8 @@
   "typings": "./dist/index.d.ts",
   "module": "./dist/esm/index.js",
   "dependencies": {
-    "@remix-run/node": "1.12.0",
-    "@remix-run/react": "1.12.0",
+    "@remix-run/node": "1.13.0-pre.0",
+    "@remix-run/react": "1.13.0-pre.0",
     "@remix-run/router": "1.3.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
diff --git a/packages/remix-vercel/CHANGELOG.md b/packages/remix-vercel/CHANGELOG.md
index 96c3be0c618..d5df78b3a53 100644
--- a/packages/remix-vercel/CHANGELOG.md
+++ b/packages/remix-vercel/CHANGELOG.md
@@ -1,5 +1,13 @@
 # `@remix-run/vercel`
 
+## 1.13.0-pre.0
+
+### Patch Changes
+
+- Fix Fetch Request creation for incoming URLs with double slashes ([#5336](https://github.com/remix-run/remix/pull/5336))
+- Updated dependencies:
+  - `@remix-run/node@1.13.0-pre.0`
+
 ## 1.12.0
 
 ### Patch Changes
diff --git a/packages/remix-vercel/package.json b/packages/remix-vercel/package.json
index 5cb42071f78..b0805b12b08 100644
--- a/packages/remix-vercel/package.json
+++ b/packages/remix-vercel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@remix-run/vercel",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "Vercel server request handler for Remix",
   "bugs": {
     "url": "https://github.com/remix-run/remix/issues"
@@ -14,7 +14,7 @@
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
   "dependencies": {
-    "@remix-run/node": "1.12.0"
+    "@remix-run/node": "1.13.0-pre.0"
   },
   "devDependencies": {
     "@types/supertest": "^2.0.10",
diff --git a/packages/remix/package.json b/packages/remix/package.json
index 683495dd266..556f200cd39 100644
--- a/packages/remix/package.json
+++ b/packages/remix/package.json
@@ -1,6 +1,6 @@
 {
   "name": "remix",
-  "version": "1.12.0",
+  "version": "1.13.0-pre.0",
   "description": "A framework for building better websites",
   "homepage": "https://remix.run",
   "bugs": {