diff --git a/.changeset/clever-pillows-boil.md b/.changeset/clever-pillows-boil.md
deleted file mode 100644
index 8a35327675530..0000000000000
--- a/.changeset/clever-pillows-boil.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Excludes hoisted scripts and styles from Astro components imported with `?url` or `?raw`
diff --git a/.changeset/good-bats-add.md b/.changeset/good-bats-add.md
deleted file mode 100644
index 300ec3aab8419..0000000000000
--- a/.changeset/good-bats-add.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Uses the correct pageSize default in `page.size` JSDoc comment
diff --git a/.changeset/gorgeous-timers-tease.md b/.changeset/gorgeous-timers-tease.md
deleted file mode 100644
index 33e8ec06a2f8e..0000000000000
--- a/.changeset/gorgeous-timers-tease.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'create-astro': patch
----
-
-Logs underlying error when a template cannot be downloaded
diff --git a/.changeset/light-chairs-happen.md b/.changeset/light-chairs-happen.md
deleted file mode 100644
index 486ecd327e6b0..0000000000000
--- a/.changeset/light-chairs-happen.md
+++ /dev/null
@@ -1,29 +0,0 @@
----
-'@astrojs/react': patch
-'astro': patch
----
-
-**BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
-
-Make `.safe()` the default return value for actions. This means `{ data, error }` will be returned when calling an action directly. If you prefer to get the data while allowing errors to throw, chain the `.orThrow()` modifier.
-
-```ts
-import { actions } from 'astro:actions';
-
-// Before
-const { data, error } = await actions.like.safe();
-// After
-const { data, error } = await actions.like();
-
-// Before
-const newLikes = await actions.like();
-// After
-const newLikes = await actions.like.orThrow();
-```
-
-## Migration
-
-To migrate your existing action calls:
-
-- Remove `.safe` from existing _safe_ action calls
-- Add `.orThrow` to existing _unsafe_ action calls
diff --git a/.changeset/mighty-mirrors-try.md b/.changeset/mighty-mirrors-try.md
deleted file mode 100644
index 8198d9fe50463..0000000000000
--- a/.changeset/mighty-mirrors-try.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Remove "SSR Only" mention in `Astro.redirect` inline documentation and update reference link.
diff --git a/.changeset/new-melons-cross.md b/.changeset/new-melons-cross.md
deleted file mode 100644
index b2e30b30586a2..0000000000000
--- a/.changeset/new-melons-cross.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fixes a case where the build was failing when `experimental.actions` was enabled, an adapter was in use, and there were not actions inside the user code base.
diff --git a/.changeset/old-bats-travel.md b/.changeset/old-bats-travel.md
deleted file mode 100644
index 136f5ec206142..0000000000000
--- a/.changeset/old-bats-travel.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fixes line with the error not being properly highlighted in the error overlay
diff --git a/.changeset/silly-bulldogs-sparkle.md b/.changeset/silly-bulldogs-sparkle.md
deleted file mode 100644
index 9b23a675fa538..0000000000000
--- a/.changeset/silly-bulldogs-sparkle.md
+++ /dev/null
@@ -1,53 +0,0 @@
----
-'@astrojs/react': patch
-'astro': patch
----
-
-**BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
-
-Updates the Astro Actions fallback to support `action={actions.name}` instead of using `getActionProps().` This will submit a form to the server in zero-JS scenarios using a search parameter:
-
-```astro
----
-import { actions } from 'astro:actions';
----
-
-<form action={actions.logOut}>
-<!--output: action="?_astroAction=logOut"-->
-  <button>Log Out</button>
-</form>
-```
-
-You may also construct form action URLs using string concatenation, or by using the `URL()` constructor, with the an action's `.queryString` property:
-
-```astro
----
-import { actions } from 'astro:actions';
-
-const confirmationUrl = new URL('/confirmation', Astro.url);
-confirmationUrl.search = actions.queryString;
----
-
-<form method="POST" action={confirmationUrl.pathname}>
-  <button>Submit</button>
-</form>
-```
-
-## Migration
-
-`getActionProps()` is now deprecated. To use the new fallback pattern, remove the `getActionProps()` input from your form and pass your action function to the form `action` attribute:
-
-```diff
----
-import {
-  actions,
-- getActionProps,  
-} from 'astro:actions';
----
-
-+ <form method="POST" action={actions.logOut}>
-- <form method="POST">
-- <input {...getActionProps(actions.logOut)} />
-  <button>Log Out</button>
-</form>
-```
diff --git a/.changeset/tasty-rockets-jog.md b/.changeset/tasty-rockets-jog.md
deleted file mode 100644
index 11286bc273296..0000000000000
--- a/.changeset/tasty-rockets-jog.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Allows actions to return falsy values without an error
diff --git a/.changeset/tidy-needles-build.md b/.changeset/tidy-needles-build.md
deleted file mode 100644
index 140df5c0bbd6a..0000000000000
--- a/.changeset/tidy-needles-build.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fixes an issue in content collection caching, where two documents with the same contents were generating an error during the build.
diff --git a/.changeset/violet-coats-fail.md b/.changeset/violet-coats-fail.md
deleted file mode 100644
index 0319b363f1121..0000000000000
--- a/.changeset/violet-coats-fail.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fixes `astro add` for packages with only prerelease versions
diff --git a/.changeset/violet-drinks-film.md b/.changeset/violet-drinks-film.md
deleted file mode 100644
index 20098137fc6da..0000000000000
--- a/.changeset/violet-drinks-film.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fixes DomException errors not being handled properly
diff --git a/.changeset/wicked-books-sip.md b/.changeset/wicked-books-sip.md
deleted file mode 100644
index d6e4741a56e75..0000000000000
--- a/.changeset/wicked-books-sip.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Fix server islands with trailingSlash: always
diff --git a/examples/basics/package.json b/examples/basics/package.json
index 0ce97377a2c76..65be26d353901 100644
--- a/examples/basics/package.json
+++ b/examples/basics/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/blog/package.json b/examples/blog/package.json
index f71948fb7641a..6f2d524dc26e9 100644
--- a/examples/blog/package.json
+++ b/examples/blog/package.json
@@ -14,6 +14,6 @@
     "@astrojs/mdx": "^3.1.3",
     "@astrojs/rss": "^4.0.7",
     "@astrojs/sitemap": "^3.1.6",
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/component/package.json b/examples/component/package.json
index b34f38ef0e323..28de0116ca5c6 100644
--- a/examples/component/package.json
+++ b/examples/component/package.json
@@ -15,7 +15,7 @@
   ],
   "scripts": {},
   "devDependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   },
   "peerDependencies": {
     "astro": "^4.0.0"
diff --git a/examples/container-with-vitest/package.json b/examples/container-with-vitest/package.json
index dde01df833741..220ef24cbfe52 100644
--- a/examples/container-with-vitest/package.json
+++ b/examples/container-with-vitest/package.json
@@ -12,8 +12,8 @@
     "test": "vitest run"
   },
   "dependencies": {
-    "astro": "^4.12.2",
-    "@astrojs/react": "^3.6.0",
+    "astro": "^4.12.3",
+    "@astrojs/react": "^3.6.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "vitest": "^2.0.3"
diff --git a/examples/framework-alpine/package.json b/examples/framework-alpine/package.json
index 8d414f065f98d..93006889fd19d 100644
--- a/examples/framework-alpine/package.json
+++ b/examples/framework-alpine/package.json
@@ -14,6 +14,6 @@
     "@astrojs/alpinejs": "^0.4.0",
     "@types/alpinejs": "^3.13.10",
     "alpinejs": "^3.14.1",
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/framework-lit/package.json b/examples/framework-lit/package.json
index dfe93d735b2c4..12f937ead2366 100644
--- a/examples/framework-lit/package.json
+++ b/examples/framework-lit/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/lit": "^4.3.0",
     "@webcomponents/template-shadowroot": "^0.2.1",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "lit": "^3.1.4"
   }
 }
diff --git a/examples/framework-multiple/package.json b/examples/framework-multiple/package.json
index 25cc87cb26248..982787d644e53 100644
--- a/examples/framework-multiple/package.json
+++ b/examples/framework-multiple/package.json
@@ -12,13 +12,13 @@
   },
   "dependencies": {
     "@astrojs/preact": "^3.5.1",
-    "@astrojs/react": "^3.6.0",
+    "@astrojs/react": "^3.6.1",
     "@astrojs/solid-js": "^4.4.0",
     "@astrojs/svelte": "^5.7.0",
     "@astrojs/vue": "^4.5.0",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "preact": "^10.22.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/examples/framework-preact/package.json b/examples/framework-preact/package.json
index c9f40b7151925..d84256b57988a 100644
--- a/examples/framework-preact/package.json
+++ b/examples/framework-preact/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/preact": "^3.5.1",
     "@preact/signals": "^1.3.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "preact": "^10.22.1"
   }
 }
diff --git a/examples/framework-react/package.json b/examples/framework-react/package.json
index 4b6b6932e3999..a9fd1c301fc45 100644
--- a/examples/framework-react/package.json
+++ b/examples/framework-react/package.json
@@ -11,10 +11,10 @@
     "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/react": "^3.6.0",
+    "@astrojs/react": "^3.6.1",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "react": "^18.3.1",
     "react-dom": "^18.3.1"
   }
diff --git a/examples/framework-solid/package.json b/examples/framework-solid/package.json
index f54d59c592aad..6c923f27aaaf1 100644
--- a/examples/framework-solid/package.json
+++ b/examples/framework-solid/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/solid-js": "^4.4.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "solid-js": "^1.8.18"
   }
 }
diff --git a/examples/framework-svelte/package.json b/examples/framework-svelte/package.json
index f4d5515524eea..30114a6cc066d 100644
--- a/examples/framework-svelte/package.json
+++ b/examples/framework-svelte/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/svelte": "^5.7.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "svelte": "^4.2.18"
   }
 }
diff --git a/examples/framework-vue/package.json b/examples/framework-vue/package.json
index e8f4c0a4c3078..d83552f854e7d 100644
--- a/examples/framework-vue/package.json
+++ b/examples/framework-vue/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/vue": "^4.5.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "vue": "^3.4.33"
   }
 }
diff --git a/examples/hackernews/package.json b/examples/hackernews/package.json
index 88aed2a5eb209..c753d4cae00a9 100644
--- a/examples/hackernews/package.json
+++ b/examples/hackernews/package.json
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "@astrojs/node": "^8.3.2",
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/integration/package.json b/examples/integration/package.json
index b28114d8e8814..9ec69d7cfbfa8 100644
--- a/examples/integration/package.json
+++ b/examples/integration/package.json
@@ -15,7 +15,7 @@
   ],
   "scripts": {},
   "devDependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   },
   "peerDependencies": {
     "astro": "^4.0.0"
diff --git a/examples/middleware/package.json b/examples/middleware/package.json
index 2d1a2ae2eb660..9bcedacd9f688 100644
--- a/examples/middleware/package.json
+++ b/examples/middleware/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@astrojs/node": "^8.3.2",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "html-minifier": "^4.0.0"
   },
   "devDependencies": {
diff --git a/examples/minimal/package.json b/examples/minimal/package.json
index b93c749572e9d..86e905d61567d 100644
--- a/examples/minimal/package.json
+++ b/examples/minimal/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/non-html-pages/package.json b/examples/non-html-pages/package.json
index 26a6edc9e5e2a..ff69c03f7f474 100644
--- a/examples/non-html-pages/package.json
+++ b/examples/non-html-pages/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/portfolio/package.json b/examples/portfolio/package.json
index 79f953dac004d..1dad0b570718b 100644
--- a/examples/portfolio/package.json
+++ b/examples/portfolio/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/server-islands/package.json b/examples/server-islands/package.json
index 35c7719217146..9eb14896804cf 100644
--- a/examples/server-islands/package.json
+++ b/examples/server-islands/package.json
@@ -11,13 +11,13 @@
   },
   "devDependencies": {
     "@astrojs/node": "^8.3.2",
-    "@astrojs/react": "^3.6.0",
+    "@astrojs/react": "^3.6.1",
     "@astrojs/tailwind": "^5.1.0",
     "@fortawesome/fontawesome-free": "^6.6.0",
     "@tailwindcss/forms": "^0.5.7",
     "@types/react": "^18.3.3",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "postcss": "^8.4.39",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/examples/ssr/package.json b/examples/ssr/package.json
index bd0ba7ad6d95e..e3d6d5c4dd259 100644
--- a/examples/ssr/package.json
+++ b/examples/ssr/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "@astrojs/node": "^8.3.2",
     "@astrojs/svelte": "^5.7.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "svelte": "^4.2.18"
   }
 }
diff --git a/examples/starlog/package.json b/examples/starlog/package.json
index c405f6f19dd11..527df3e101e4b 100644
--- a/examples/starlog/package.json
+++ b/examples/starlog/package.json
@@ -10,7 +10,7 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "sass": "^1.77.8",
     "sharp": "^0.33.3"
   }
diff --git a/examples/toolbar-app/package.json b/examples/toolbar-app/package.json
index 0574fee731cf0..dfc373adda2a7 100644
--- a/examples/toolbar-app/package.json
+++ b/examples/toolbar-app/package.json
@@ -15,6 +15,6 @@
     "./app": "./dist/app.js"
   },
   "devDependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/view-transitions/package.json b/examples/view-transitions/package.json
index 343c96a27c233..f31ddededd0af 100644
--- a/examples/view-transitions/package.json
+++ b/examples/view-transitions/package.json
@@ -12,6 +12,6 @@
   "devDependencies": {
     "@astrojs/tailwind": "^5.1.0",
     "@astrojs/node": "^8.3.2",
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/with-markdoc/package.json b/examples/with-markdoc/package.json
index 89237c07485f2..c0477420c5d09 100644
--- a/examples/with-markdoc/package.json
+++ b/examples/with-markdoc/package.json
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "@astrojs/markdoc": "^0.11.3",
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/with-markdown-plugins/package.json b/examples/with-markdown-plugins/package.json
index 5c2d77fc24233..ed1104b7c4c73 100644
--- a/examples/with-markdown-plugins/package.json
+++ b/examples/with-markdown-plugins/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/markdown-remark": "^5.2.0",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "hast-util-select": "^6.0.2",
     "rehype-autolink-headings": "^7.1.0",
     "rehype-slug": "^6.0.0",
diff --git a/examples/with-markdown-shiki/package.json b/examples/with-markdown-shiki/package.json
index 132fa97705198..7f43327a44f14 100644
--- a/examples/with-markdown-shiki/package.json
+++ b/examples/with-markdown-shiki/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.12.2"
+    "astro": "^4.12.3"
   }
 }
diff --git a/examples/with-mdx/package.json b/examples/with-mdx/package.json
index 704b9c3bf9335..5ec09294b267a 100644
--- a/examples/with-mdx/package.json
+++ b/examples/with-mdx/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/mdx": "^3.1.3",
     "@astrojs/preact": "^3.5.1",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "preact": "^10.22.1"
   }
 }
diff --git a/examples/with-nanostores/package.json b/examples/with-nanostores/package.json
index 27128223a18bb..46e1ebe54e5d6 100644
--- a/examples/with-nanostores/package.json
+++ b/examples/with-nanostores/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/preact": "^3.5.1",
     "@nanostores/preact": "^0.5.1",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "nanostores": "^0.10.3",
     "preact": "^10.22.1"
   }
diff --git a/examples/with-tailwindcss/package.json b/examples/with-tailwindcss/package.json
index f2dfc62420086..62a36e1f4de53 100644
--- a/examples/with-tailwindcss/package.json
+++ b/examples/with-tailwindcss/package.json
@@ -14,7 +14,7 @@
     "@astrojs/mdx": "^3.1.3",
     "@astrojs/tailwind": "^5.1.0",
     "@types/canvas-confetti": "^1.6.4",
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "autoprefixer": "^10.4.19",
     "canvas-confetti": "^1.9.3",
     "postcss": "^8.4.39",
diff --git a/examples/with-vitest/package.json b/examples/with-vitest/package.json
index 39a7d4670c993..ba41bc2c2755d 100644
--- a/examples/with-vitest/package.json
+++ b/examples/with-vitest/package.json
@@ -12,7 +12,7 @@
     "test": "vitest"
   },
   "dependencies": {
-    "astro": "^4.12.2",
+    "astro": "^4.12.3",
     "vitest": "^2.0.3"
   }
 }
diff --git a/packages/astro/CHANGELOG.md b/packages/astro/CHANGELOG.md
index 9e412cac673bd..527be3991730a 100644
--- a/packages/astro/CHANGELOG.md
+++ b/packages/astro/CHANGELOG.md
@@ -1,5 +1,103 @@
 # astro
 
+## 4.12.3
+
+### Patch Changes
+
+- [#11509](https://github.com/withastro/astro/pull/11509) [`dfbca06`](https://github.com/withastro/astro/commit/dfbca06dda674c64c7010db2f4de951496a1e631) Thanks [@bluwy](https://github.com/bluwy)! - Excludes hoisted scripts and styles from Astro components imported with `?url` or `?raw`
+
+- [#11561](https://github.com/withastro/astro/pull/11561) [`904f1e5`](https://github.com/withastro/astro/commit/904f1e535aeb7a14ba7ce07c3130e25f3e708266) Thanks [@ArmandPhilippot](https://github.com/ArmandPhilippot)! - Uses the correct pageSize default in `page.size` JSDoc comment
+
+- [#11571](https://github.com/withastro/astro/pull/11571) [`1c3265a`](https://github.com/withastro/astro/commit/1c3265a8c9c0b1b1bd597f756b63463146bacc3a) Thanks [@bholmesdev](https://github.com/bholmesdev)! - **BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
+
+  Make `.safe()` the default return value for actions. This means `{ data, error }` will be returned when calling an action directly. If you prefer to get the data while allowing errors to throw, chain the `.orThrow()` modifier.
+
+  ```ts
+  import { actions } from 'astro:actions';
+
+  // Before
+  const { data, error } = await actions.like.safe();
+  // After
+  const { data, error } = await actions.like();
+
+  // Before
+  const newLikes = await actions.like();
+  // After
+  const newLikes = await actions.like.orThrow();
+  ```
+
+  ## Migration
+
+  To migrate your existing action calls:
+
+  - Remove `.safe` from existing _safe_ action calls
+  - Add `.orThrow` to existing _unsafe_ action calls
+
+- [#11546](https://github.com/withastro/astro/pull/11546) [`7f26de9`](https://github.com/withastro/astro/commit/7f26de906e87f1e8973a1f84399f23e36e506bb3) Thanks [@ArmandPhilippot](https://github.com/ArmandPhilippot)! - Remove "SSR Only" mention in `Astro.redirect` inline documentation and update reference link.
+
+- [#11525](https://github.com/withastro/astro/pull/11525) [`8068131`](https://github.com/withastro/astro/commit/80681318c6cb0f612fcb5188933fdd20a8f474a3) Thanks [@ematipico](https://github.com/ematipico)! - Fixes a case where the build was failing when `experimental.actions` was enabled, an adapter was in use, and there were not actions inside the user code base.
+
+- [#11574](https://github.com/withastro/astro/pull/11574) [`e3f29d4`](https://github.com/withastro/astro/commit/e3f29d416a2e0a0b5328ae1075b12575260dddfd) Thanks [@Princesseuh](https://github.com/Princesseuh)! - Fixes line with the error not being properly highlighted in the error overlay
+
+- [#11570](https://github.com/withastro/astro/pull/11570) [`84189b6`](https://github.com/withastro/astro/commit/84189b6511dc2a14bcfe608696f56a64c2046f39) Thanks [@bholmesdev](https://github.com/bholmesdev)! - **BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
+
+  Updates the Astro Actions fallback to support `action={actions.name}` instead of using `getActionProps().` This will submit a form to the server in zero-JS scenarios using a search parameter:
+
+  ```astro
+  ---
+  import { actions } from 'astro:actions';
+  ---
+
+  <form action={actions.logOut}>
+    <!--output: action="?_astroAction=logOut"-->
+    <button>Log Out</button>
+  </form>
+  ```
+
+  You may also construct form action URLs using string concatenation, or by using the `URL()` constructor, with the an action's `.queryString` property:
+
+  ```astro
+  ---
+  import { actions } from 'astro:actions';
+
+  const confirmationUrl = new URL('/confirmation', Astro.url);
+  confirmationUrl.search = actions.queryString;
+  ---
+
+  <form method="POST" action={confirmationUrl.pathname}>
+    <button>Submit</button>
+  </form>
+  ```
+
+  ## Migration
+
+  `getActionProps()` is now deprecated. To use the new fallback pattern, remove the `getActionProps()` input from your form and pass your action function to the form `action` attribute:
+
+  ```diff
+  ---
+  import {
+    actions,
+  - getActionProps,
+  } from 'astro:actions';
+  ---
+
+  + <form method="POST" action={actions.logOut}>
+  - <form method="POST">
+  - <input {...getActionProps(actions.logOut)} />
+    <button>Log Out</button>
+  </form>
+  ```
+
+- [#11559](https://github.com/withastro/astro/pull/11559) [`1953dbb`](https://github.com/withastro/astro/commit/1953dbbd41d2d7803837601a9e192654f02275ef) Thanks [@bryanwood](https://github.com/bryanwood)! - Allows actions to return falsy values without an error
+
+- [#11553](https://github.com/withastro/astro/pull/11553) [`02c85b5`](https://github.com/withastro/astro/commit/02c85b541241a07db45bf9e15717e111104898e5) Thanks [@ematipico](https://github.com/ematipico)! - Fixes an issue in content collection caching, where two documents with the same contents were generating an error during the build.
+
+- [#11548](https://github.com/withastro/astro/pull/11548) [`602c5bf`](https://github.com/withastro/astro/commit/602c5bf05de4fe5ec1ea97f8e10455485aceb05f) Thanks [@TheOtterlord](https://github.com/TheOtterlord)! - Fixes `astro add` for packages with only prerelease versions
+
+- [#11566](https://github.com/withastro/astro/pull/11566) [`0dcef3a`](https://github.com/withastro/astro/commit/0dcef3ab171bd7f81c2f99e9366db3724aa7091b) Thanks [@Princesseuh](https://github.com/Princesseuh)! - Fixes DomException errors not being handled properly
+
+- [#11529](https://github.com/withastro/astro/pull/11529) [`504c383`](https://github.com/withastro/astro/commit/504c383e20dfb5d8eb0825a70935f221b43577b2) Thanks [@matthewp](https://github.com/matthewp)! - Fix server islands with trailingSlash: always
+
 ## 4.12.2
 
 ### Patch Changes
diff --git a/packages/astro/package.json b/packages/astro/package.json
index 018c79db953be..ea38df7fa9a29 100644
--- a/packages/astro/package.json
+++ b/packages/astro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "astro",
-  "version": "4.12.2",
+  "version": "4.12.3",
   "description": "Astro is a modern site builder with web best practices, performance, and DX front-of-mind.",
   "type": "module",
   "author": "withastro",
diff --git a/packages/astro/test/types/action-return-type.ts b/packages/astro/test/types/action-return-type.ts
index 4922da5530370..d0ac105623263 100644
--- a/packages/astro/test/types/action-return-type.ts
+++ b/packages/astro/test/types/action-return-type.ts
@@ -1,8 +1,8 @@
 import { describe, it } from 'node:test';
 import { expectTypeOf } from 'expect-type';
 import {
-	type SafeResult,
 	type ActionReturnType,
+	type SafeResult,
 	defineAction,
 } from '../../dist/actions/runtime/virtual/server.js';
 import { z } from '../../zod.mjs';
diff --git a/packages/create-astro/CHANGELOG.md b/packages/create-astro/CHANGELOG.md
index d5e3320bb65c6..5af50e3122778 100644
--- a/packages/create-astro/CHANGELOG.md
+++ b/packages/create-astro/CHANGELOG.md
@@ -1,5 +1,11 @@
 # create-astro
 
+## 4.8.1
+
+### Patch Changes
+
+- [#11567](https://github.com/withastro/astro/pull/11567) [`d27cf6d`](https://github.com/withastro/astro/commit/d27cf6df7bd612642a1e8da5948333b00b70e8bd) Thanks [@ascorbic](https://github.com/ascorbic)! - Logs underlying error when a template cannot be downloaded
+
 ## 4.8.0
 
 ### Minor Changes
diff --git a/packages/create-astro/package.json b/packages/create-astro/package.json
index 32071380f4ffe..4a2fc13ad1661 100644
--- a/packages/create-astro/package.json
+++ b/packages/create-astro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "create-astro",
-  "version": "4.8.0",
+  "version": "4.8.1",
   "type": "module",
   "author": "withastro",
   "license": "MIT",
diff --git a/packages/integrations/react/CHANGELOG.md b/packages/integrations/react/CHANGELOG.md
index 2bebccb85b6b6..b8aa870f5a01a 100644
--- a/packages/integrations/react/CHANGELOG.md
+++ b/packages/integrations/react/CHANGELOG.md
@@ -1,5 +1,83 @@
 # @astrojs/react
 
+## 3.6.1
+
+### Patch Changes
+
+- [#11571](https://github.com/withastro/astro/pull/11571) [`1c3265a`](https://github.com/withastro/astro/commit/1c3265a8c9c0b1b1bd597f756b63463146bacc3a) Thanks [@bholmesdev](https://github.com/bholmesdev)! - **BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
+
+  Make `.safe()` the default return value for actions. This means `{ data, error }` will be returned when calling an action directly. If you prefer to get the data while allowing errors to throw, chain the `.orThrow()` modifier.
+
+  ```ts
+  import { actions } from 'astro:actions';
+
+  // Before
+  const { data, error } = await actions.like.safe();
+  // After
+  const { data, error } = await actions.like();
+
+  // Before
+  const newLikes = await actions.like();
+  // After
+  const newLikes = await actions.like.orThrow();
+  ```
+
+  ## Migration
+
+  To migrate your existing action calls:
+
+  - Remove `.safe` from existing _safe_ action calls
+  - Add `.orThrow` to existing _unsafe_ action calls
+
+- [#11570](https://github.com/withastro/astro/pull/11570) [`84189b6`](https://github.com/withastro/astro/commit/84189b6511dc2a14bcfe608696f56a64c2046f39) Thanks [@bholmesdev](https://github.com/bholmesdev)! - **BREAKING CHANGE to the experimental Actions API only.** Install the latest `@astrojs/react` integration as well if you're using React 19 features.
+
+  Updates the Astro Actions fallback to support `action={actions.name}` instead of using `getActionProps().` This will submit a form to the server in zero-JS scenarios using a search parameter:
+
+  ```astro
+  ---
+  import { actions } from 'astro:actions';
+  ---
+
+  <form action={actions.logOut}>
+    <!--output: action="?_astroAction=logOut"-->
+    <button>Log Out</button>
+  </form>
+  ```
+
+  You may also construct form action URLs using string concatenation, or by using the `URL()` constructor, with the an action's `.queryString` property:
+
+  ```astro
+  ---
+  import { actions } from 'astro:actions';
+
+  const confirmationUrl = new URL('/confirmation', Astro.url);
+  confirmationUrl.search = actions.queryString;
+  ---
+
+  <form method="POST" action={confirmationUrl.pathname}>
+    <button>Submit</button>
+  </form>
+  ```
+
+  ## Migration
+
+  `getActionProps()` is now deprecated. To use the new fallback pattern, remove the `getActionProps()` input from your form and pass your action function to the form `action` attribute:
+
+  ```diff
+  ---
+  import {
+    actions,
+  - getActionProps,
+  } from 'astro:actions';
+  ---
+
+  + <form method="POST" action={actions.logOut}>
+  - <form method="POST">
+  - <input {...getActionProps(actions.logOut)} />
+    <button>Log Out</button>
+  </form>
+  ```
+
 ## 3.6.0
 
 ### Minor Changes
diff --git a/packages/integrations/react/package.json b/packages/integrations/react/package.json
index 16ae0b279f778..114628edb25be 100644
--- a/packages/integrations/react/package.json
+++ b/packages/integrations/react/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@astrojs/react",
   "description": "Use React components within Astro",
-  "version": "3.6.0",
+  "version": "3.6.1",
   "type": "module",
   "types": "./dist/index.d.ts",
   "author": "withastro",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 45f6a2824c02d..108f4dc4b5024 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -128,7 +128,7 @@ importers:
   examples/basics:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/blog:
@@ -143,22 +143,22 @@ importers:
         specifier: ^3.1.6
         version: link:../../packages/integrations/sitemap
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/component:
     devDependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/container-with-vitest:
     dependencies:
       '@astrojs/react':
-        specifier: ^3.6.0
+        specifier: ^3.6.1
         version: link:../../packages/integrations/react
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       react:
         specifier: ^18.3.1
@@ -189,7 +189,7 @@ importers:
         specifier: ^3.14.1
         version: 3.14.1
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/framework-lit:
@@ -201,7 +201,7 @@ importers:
         specifier: ^0.2.1
         version: 0.2.1
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       lit:
         specifier: ^3.1.4
@@ -213,7 +213,7 @@ importers:
         specifier: ^3.5.1
         version: link:../../packages/integrations/preact
       '@astrojs/react':
-        specifier: ^3.6.0
+        specifier: ^3.6.1
         version: link:../../packages/integrations/react
       '@astrojs/solid-js':
         specifier: ^4.4.0
@@ -231,7 +231,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       preact:
         specifier: ^10.22.1
@@ -261,7 +261,7 @@ importers:
         specifier: ^1.3.0
         version: 1.3.0(preact@10.22.1)
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       preact:
         specifier: ^10.22.1
@@ -270,7 +270,7 @@ importers:
   examples/framework-react:
     dependencies:
       '@astrojs/react':
-        specifier: ^3.6.0
+        specifier: ^3.6.1
         version: link:../../packages/integrations/react
       '@types/react':
         specifier: ^18.3.3
@@ -279,7 +279,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       react:
         specifier: ^18.3.1
@@ -294,7 +294,7 @@ importers:
         specifier: ^4.4.0
         version: link:../../packages/integrations/solid
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       solid-js:
         specifier: ^1.8.18
@@ -306,7 +306,7 @@ importers:
         specifier: ^5.7.0
         version: link:../../packages/integrations/svelte
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       svelte:
         specifier: ^4.2.18
@@ -318,7 +318,7 @@ importers:
         specifier: ^4.5.0
         version: link:../../packages/integrations/vue
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       vue:
         specifier: ^3.4.33
@@ -330,13 +330,13 @@ importers:
         specifier: ^8.3.2
         version: link:../../packages/integrations/node
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/integration:
     devDependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/middleware:
@@ -345,7 +345,7 @@ importers:
         specifier: ^8.3.2
         version: link:../../packages/integrations/node
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       html-minifier:
         specifier: ^4.0.0
@@ -358,19 +358,19 @@ importers:
   examples/minimal:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/non-html-pages:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/portfolio:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/server-islands:
@@ -379,7 +379,7 @@ importers:
         specifier: ^8.3.2
         version: link:../../packages/integrations/node
       '@astrojs/react':
-        specifier: ^3.6.0
+        specifier: ^3.6.1
         version: link:../../packages/integrations/react
       '@astrojs/tailwind':
         specifier: ^5.1.0
@@ -397,7 +397,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       postcss:
         specifier: ^8.4.39
@@ -421,7 +421,7 @@ importers:
         specifier: ^5.7.0
         version: link:../../packages/integrations/svelte
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       svelte:
         specifier: ^4.2.18
@@ -430,7 +430,7 @@ importers:
   examples/starlog:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       sass:
         specifier: ^1.77.8
@@ -442,7 +442,7 @@ importers:
   examples/toolbar-app:
     devDependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/view-transitions:
@@ -454,7 +454,7 @@ importers:
         specifier: ^5.1.0
         version: link:../../packages/integrations/tailwind
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/with-markdoc:
@@ -463,7 +463,7 @@ importers:
         specifier: ^0.11.3
         version: link:../../packages/integrations/markdoc
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/with-markdown-plugins:
@@ -472,7 +472,7 @@ importers:
         specifier: ^5.2.0
         version: link:../../packages/markdown/remark
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       hast-util-select:
         specifier: ^6.0.2
@@ -493,7 +493,7 @@ importers:
   examples/with-markdown-shiki:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
 
   examples/with-mdx:
@@ -505,7 +505,7 @@ importers:
         specifier: ^3.5.1
         version: link:../../packages/integrations/preact
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       preact:
         specifier: ^10.22.1
@@ -520,7 +520,7 @@ importers:
         specifier: ^0.5.1
         version: 0.5.1(nanostores@0.10.3)(preact@10.22.1)
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       nanostores:
         specifier: ^0.10.3
@@ -541,7 +541,7 @@ importers:
         specifier: ^1.6.4
         version: 1.6.4
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       autoprefixer:
         specifier: ^10.4.19
@@ -559,7 +559,7 @@ importers:
   examples/with-vitest:
     dependencies:
       astro:
-        specifier: ^4.12.2
+        specifier: ^4.12.3
         version: link:../../packages/astro
       vitest:
         specifier: ^2.0.3