diff --git a/.changeset/afraid-apricots-develop.md b/.changeset/afraid-apricots-develop.md
deleted file mode 100644
index acf897149ff9..000000000000
--- a/.changeset/afraid-apricots-develop.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-'astro': minor
----
-
-Adds a new variant `sync` for the `astro:config:setup` hook's `command` property. This value is set when calling the command `astro sync`.
-
-If your integration previously relied on knowing how many variants existed for the `command` property, you must update your logic to account for this new option.
diff --git a/.changeset/blue-pens-divide.md b/.changeset/blue-pens-divide.md
deleted file mode 100644
index a295fe7b1494..000000000000
--- a/.changeset/blue-pens-divide.md
+++ /dev/null
@@ -1,22 +0,0 @@
----
-'astro': patch
----
-
-Fixes a bug in the logic of `Astro.rewrite()` which led to the value for `base`, if configured, being automatically prepended to the rewrite URL passed. This was unintended behavior and has been corrected, and Astro now processes the URLs exactly as passed.
-
-If you use the `rewrite()` function on a project that has `base` configured, you must now prepend the base to your existing rewrite URL:
-
-```js
-// astro.config.mjs
-export default defineConfig({
-  base: '/blog'
-})
-```
-
-```diff
-// src/middleware.js
-export function onRequest(ctx, next) {
--  return ctx.rewrite("/about")
-+  return ctx.rewrite("/blog/about")
-}
-```
diff --git a/.changeset/chilled-timers-shave.md b/.changeset/chilled-timers-shave.md
deleted file mode 100644
index 1866eab85bfb..000000000000
--- a/.changeset/chilled-timers-shave.md
+++ /dev/null
@@ -1,26 +0,0 @@
----
-'astro': patch
----
-
-**BREAKING CHANGE to experimental content layer loaders only!**
-
-Passes `AstroConfig` instead of `AstroSettings` object to content layer loaders.
-
-This will not affect you unless you have created a loader that uses the `settings` object. If you have, you will need to update your loader to use the `config` object instead.
-
-```diff
-export default function myLoader() {
-  return {
-    name: 'my-loader'
--   async load({ settings }) {
--     const base = settings.config.base;
-+   async load({ config }) {
-+     const base = config.base;
-      // ...
-    }
-  }
-}
-
-```
-
-Other properties of the settings object are private internals, and should not be accessed directly. If you think you need access to other properties, please open an issue to discuss your use case.
diff --git a/.changeset/clever-emus-roll.md b/.changeset/clever-emus-roll.md
deleted file mode 100644
index 5b9b2ee69829..000000000000
--- a/.changeset/clever-emus-roll.md
+++ /dev/null
@@ -1,11 +0,0 @@
----
-'astro': minor
----
-
-Adds a new, optional property `timeout` for the `client:idle` directive. 
-
-This value allows you to specify a maximum time to wait, in milliseconds, before hydrating a UI framework component, even if the page is not yet done with its initial load. This means you can delay hydration for lower-priority UI elements with more control to ensure your element is interactive within a specified time frame.
-
-```astro
-<ShowHideButton client:idle={{timeout: 500}} />
-```
diff --git a/.changeset/eight-balloons-cover.md b/.changeset/eight-balloons-cover.md
deleted file mode 100644
index ea6364668ab0..000000000000
--- a/.changeset/eight-balloons-cover.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Uses `magicast` to update the config for `astro add`
diff --git a/.changeset/four-beans-remember.md b/.changeset/four-beans-remember.md
deleted file mode 100644
index cdef7197d15c..000000000000
--- a/.changeset/four-beans-remember.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Replaces `execa` with `tinyexec` internally
diff --git a/.changeset/healthy-boxes-poke.md b/.changeset/healthy-boxes-poke.md
deleted file mode 100644
index d4c1e4302444..000000000000
--- a/.changeset/healthy-boxes-poke.md
+++ /dev/null
@@ -1,14 +0,0 @@
----
-'@astrojs/db': minor
----
-
-Adds support for connecting Astro DB to any remote LibSQL server. This allows Astro DB to be used with self-hosting and air-gapped deployments.
-
-To connect Astro DB to a remote LibSQL server instead of Studio, set the following environment variables:
-
-- `ASTRO_DB_REMOTE_URL`: the connection URL to your LibSQL server
-- `ASTRO_DB_APP_TOKEN`: the auth token to your LibSQL server
-
-Details of the LibSQL connection can be configured using the connection URL. For example, `memory:?syncUrl=libsql%3A%2F%2Fdb-server.example.com` would create an in-memory embedded replica for the LibSQL DB on `libsql://db-server.example.com`.
-
-For more details, please visit [the Astro DB documentation](https://docs.astro.build/en/guides/astro-db/#libsql)
diff --git a/.changeset/lazy-feet-join.md b/.changeset/lazy-feet-join.md
deleted file mode 100644
index e2b0a40776d7..000000000000
--- a/.changeset/lazy-feet-join.md
+++ /dev/null
@@ -1,32 +0,0 @@
----
-'astro': minor
----
-
-Adds a new option `fallbackType` to `i18n.routing` configuration that allows you to control how fallback pages are handled.
-
-When `i18n.fallback` is configured, this new routing option controls whether to [redirect](https://docs.astro.build/en/guides/routing/#redirects) to the fallback page, or to [rewrite](https://docs.astro.build/en/guides/routing/#rewrites) the fallback page's content in place.
-
-The `"redirect"` option is the default value and matches the current behavior of the existing fallback system.
-
-The option `"rewrite"` uses the new [rewriting system](https://docs.astro.build/en/guides/routing/#rewrites) to create fallback pages that render content on the original, requested URL without a browser refresh.
-
-For example, the following configuration will generate a page `/fr/index.html` that will contain the same HTML rendered by the page `/en/index.html` when `src/pages/fr/index.astro` does not exist.
-
-```js
-// astro.config.mjs
-export default defineConfig({
-  i18n: {
-    locals: ["en", "fr"],
-    defaultLocale: "en",
-    routing: {
-      prefixDefaultLocale: true,
-      fallbackType: "rewrite"
-    },
-    fallback: {
-      fr: "en"
-    },
-  }
-})
-```
-
-
diff --git a/.changeset/new-monkeys-sit.md b/.changeset/new-monkeys-sit.md
deleted file mode 100644
index d71ab0b55ccb..000000000000
--- a/.changeset/new-monkeys-sit.md
+++ /dev/null
@@ -1,32 +0,0 @@
----
-'astro': minor
----
-
-Adds a new object `swapFunctions` to expose the necessary utility functions on `astro:transitions/client` that allow you to build custom swap functions to be used with view transitions.
-
-The example below uses these functions to replace Astro's built-in default `swap` function with one that only swaps the `<main>` part of the page:
-
-```html
-<script>
-import { swapFunctions } from 'astro:transitions/client';
-
-document.addEventListener('astro:before-swap', (e) => { e.swap = () => swapMainOnly(e.newDocument) });
-
-function swapMainOnly(doc: Document) {
-  swapFunctions.deselectScripts(doc);
-  swapFunctions.swapRootAttributes(doc);
-  swapFunctions.swapHeadElements(doc);
-  const restoreFocusFunction = swapFunctions.saveFocus();
-  const newMain = doc.querySelector('main');
-  const oldMain = document.querySelector('main');
-  if (newMain && oldMain) {
-    swapFunctions.swapBodyElement(newMain, oldMain);
-  } else {
-    swapFunctions.swapBodyElement(doc.body, document.body);
-  }
-  restoreFocusFunction();
-};
-</script>
-```
-
-See the [view transitions guide](https://docs.astro.build/en/guides/view-transitions/#astrobefore-swap) for more information about hooking into the `astro:before-swap` lifecycle event and adding a custom swap implementation.
diff --git a/.changeset/perfect-wasps-grow.md b/.changeset/perfect-wasps-grow.md
deleted file mode 100644
index 855c709837b2..000000000000
--- a/.changeset/perfect-wasps-grow.md
+++ /dev/null
@@ -1,17 +0,0 @@
----
-'astro': minor
----
-
-Exposes `z` from the new `astro:schema` module. This is the new recommended import source for all Zod utilities when using Astro Actions.
-
-## Migration for Astro Actions users
-
-`z` will no longer be exposed from `astro:actions`. To use `z` in your actions, import it from `astro:schema` instead:
-
-```diff
-import {
-  defineAction,
--  z,
-} from 'astro:actions';
-+ import { z } from 'astro:schema';
-```
diff --git a/.changeset/rich-kings-wait.md b/.changeset/rich-kings-wait.md
deleted file mode 100644
index 7f5aa677f71d..000000000000
--- a/.changeset/rich-kings-wait.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'astro': patch
----
-
-Correctly resolves content layer images when filePath is not set
diff --git a/.changeset/spicy-suits-explode.md b/.changeset/spicy-suits-explode.md
deleted file mode 100644
index 1e43ca4a2b70..000000000000
--- a/.changeset/spicy-suits-explode.md
+++ /dev/null
@@ -1,38 +0,0 @@
----
-"astro": minor
----
-
-The Astro Actions API introduced behind a flag in [v4.8.0](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md#480) is no longer experimental and is available for general use.
-
-Astro Actions allow you to define and call backend functions with type-safety, performing data fetching, JSON parsing, and input validation for you.
-
-Actions can be called from client-side components and HTML forms. This gives you to flexibility to build apps using any technology: React, Svelte, HTMX, or just plain Astro components. This example calls a newsletter action and renders the result using an Astro component:
-
-```astro
----
-// src/pages/newsletter.astro
-import { actions } from 'astro:actions';
-const result = Astro.getActionResult(actions.newsletter);
----
-{result && !result.error && <p>Thanks for signing up!</p>}
-<form method="POST" action={actions.newsletter}>
-  <input type="email" name="email" />
-  <button>Sign up</button>
-</form>
-```
-
-If you were previously using this feature, please remove the experimental flag from your Astro config:
-
-```diff
-import { defineConfig } from 'astro'
-
-export default defineConfig({
--  experimental: {
--    actions: true,
--  }
-})
-```
-
-If you have been waiting for stabilization before using Actions, you can now do so.
-
-For more information and usage examples, see our [brand new Actions guide](https://docs.astro.build/en/guides/actions).
diff --git a/examples/basics/package.json b/examples/basics/package.json
index 91c830f618ae..62d441121d48 100644
--- a/examples/basics/package.json
+++ b/examples/basics/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/blog/package.json b/examples/blog/package.json
index 195d814f153e..92c6fe574bea 100644
--- a/examples/blog/package.json
+++ b/examples/blog/package.json
@@ -14,6 +14,6 @@
     "@astrojs/mdx": "^3.1.5",
     "@astrojs/rss": "^4.0.7",
     "@astrojs/sitemap": "^3.1.6",
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/component/package.json b/examples/component/package.json
index 7363dc96b111..e32084872a20 100644
--- a/examples/component/package.json
+++ b/examples/component/package.json
@@ -15,7 +15,7 @@
   ],
   "scripts": {},
   "devDependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   },
   "peerDependencies": {
     "astro": "^4.0.0"
diff --git a/examples/container-with-vitest/package.json b/examples/container-with-vitest/package.json
index ba9f3ab489f8..85b3c8ce8023 100644
--- a/examples/container-with-vitest/package.json
+++ b/examples/container-with-vitest/package.json
@@ -12,7 +12,7 @@
     "test": "vitest run"
   },
   "dependencies": {
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "@astrojs/react": "^3.6.2",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/examples/framework-alpine/package.json b/examples/framework-alpine/package.json
index f1987880fca7..b27c9984f2f7 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": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/framework-lit/package.json b/examples/framework-lit/package.json
index dbd2161909ef..532f954bf954 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": "^4.14.6",
+    "astro": "^4.15.0",
     "lit": "^3.2.0"
   }
 }
diff --git a/examples/framework-multiple/package.json b/examples/framework-multiple/package.json
index 54c6399bb7de..947ffb60c1f5 100644
--- a/examples/framework-multiple/package.json
+++ b/examples/framework-multiple/package.json
@@ -18,7 +18,7 @@
     "@astrojs/vue": "^4.5.0",
     "@types/react": "^18.3.4",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "preact": "^10.23.2",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/examples/framework-preact/package.json b/examples/framework-preact/package.json
index 00cb443655ae..2a50ccaca14f 100644
--- a/examples/framework-preact/package.json
+++ b/examples/framework-preact/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/preact": "^3.5.2",
     "@preact/signals": "^1.3.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "preact": "^10.23.2"
   }
 }
diff --git a/examples/framework-react/package.json b/examples/framework-react/package.json
index fe90c765aa52..88f04f255e4f 100644
--- a/examples/framework-react/package.json
+++ b/examples/framework-react/package.json
@@ -14,7 +14,7 @@
     "@astrojs/react": "^3.6.2",
     "@types/react": "^18.3.4",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1"
   }
diff --git a/examples/framework-solid/package.json b/examples/framework-solid/package.json
index 4e3d60b67ef4..100db427c181 100644
--- a/examples/framework-solid/package.json
+++ b/examples/framework-solid/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/solid-js": "^4.4.1",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "solid-js": "^1.8.22"
   }
 }
diff --git a/examples/framework-svelte/package.json b/examples/framework-svelte/package.json
index 2ce16f70f0b8..518271d9e05c 100644
--- a/examples/framework-svelte/package.json
+++ b/examples/framework-svelte/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/svelte": "^5.7.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "svelte": "^4.2.19"
   }
 }
diff --git a/examples/framework-vue/package.json b/examples/framework-vue/package.json
index adc9e85c47cc..0b200a0788ea 100644
--- a/examples/framework-vue/package.json
+++ b/examples/framework-vue/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@astrojs/vue": "^4.5.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "vue": "^3.4.38"
   }
 }
diff --git a/examples/hackernews/package.json b/examples/hackernews/package.json
index 0f844a371c7f..d2e72a82703f 100644
--- a/examples/hackernews/package.json
+++ b/examples/hackernews/package.json
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "@astrojs/node": "^8.3.3",
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/integration/package.json b/examples/integration/package.json
index c9b95aeed948..1cd67a6bad85 100644
--- a/examples/integration/package.json
+++ b/examples/integration/package.json
@@ -15,7 +15,7 @@
   ],
   "scripts": {},
   "devDependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   },
   "peerDependencies": {
     "astro": "^4.0.0"
diff --git a/examples/middleware/package.json b/examples/middleware/package.json
index e1a86dce3052..f619c480cb83 100644
--- a/examples/middleware/package.json
+++ b/examples/middleware/package.json
@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@astrojs/node": "^8.3.3",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "html-minifier": "^4.0.0"
   },
   "devDependencies": {
diff --git a/examples/minimal/package.json b/examples/minimal/package.json
index 8bcf5cd5c92b..3ed31d7896be 100644
--- a/examples/minimal/package.json
+++ b/examples/minimal/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/non-html-pages/package.json b/examples/non-html-pages/package.json
index cdba337de9ba..8c5507f09613 100644
--- a/examples/non-html-pages/package.json
+++ b/examples/non-html-pages/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/portfolio/package.json b/examples/portfolio/package.json
index a1483ce7aac6..2d8ca98d8e3e 100644
--- a/examples/portfolio/package.json
+++ b/examples/portfolio/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/server-islands/package.json b/examples/server-islands/package.json
index 3c98d21766f9..d066e29fd618 100644
--- a/examples/server-islands/package.json
+++ b/examples/server-islands/package.json
@@ -17,7 +17,7 @@
     "@tailwindcss/forms": "^0.5.7",
     "@types/react": "^18.3.4",
     "@types/react-dom": "^18.3.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "postcss": "^8.4.41",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
diff --git a/examples/ssr/package.json b/examples/ssr/package.json
index 29a5d8d9edf1..620ff0e680cc 100644
--- a/examples/ssr/package.json
+++ b/examples/ssr/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "@astrojs/node": "^8.3.3",
     "@astrojs/svelte": "^5.7.0",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "svelte": "^4.2.19"
   }
 }
diff --git a/examples/starlog/package.json b/examples/starlog/package.json
index bf16286c0bfd..f36e7b116852 100644
--- a/examples/starlog/package.json
+++ b/examples/starlog/package.json
@@ -10,7 +10,7 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "sass": "^1.77.8",
     "sharp": "^0.33.3"
   }
diff --git a/examples/toolbar-app/package.json b/examples/toolbar-app/package.json
index 0619f8da65a3..11d8e6c7b1c9 100644
--- a/examples/toolbar-app/package.json
+++ b/examples/toolbar-app/package.json
@@ -15,6 +15,6 @@
     "./app": "./dist/app.js"
   },
   "devDependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/view-transitions/package.json b/examples/view-transitions/package.json
index faab3464cdfa..06a1982ef6a4 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": "^8.3.3",
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/with-markdoc/package.json b/examples/with-markdoc/package.json
index 8785571b9cc7..42aa5cbdfa07 100644
--- a/examples/with-markdoc/package.json
+++ b/examples/with-markdoc/package.json
@@ -12,6 +12,6 @@
   },
   "dependencies": {
     "@astrojs/markdoc": "^0.11.4",
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/with-markdown-plugins/package.json b/examples/with-markdown-plugins/package.json
index 3ac6539a5c78..38a8bf0f9c5a 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": "^4.14.6",
+    "astro": "^4.15.0",
     "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 425e5444987b..1493661dcef2 100644
--- a/examples/with-markdown-shiki/package.json
+++ b/examples/with-markdown-shiki/package.json
@@ -11,6 +11,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "^4.14.6"
+    "astro": "^4.15.0"
   }
 }
diff --git a/examples/with-mdx/package.json b/examples/with-mdx/package.json
index 5c6c7c6df42b..fcd86b1c7a2c 100644
--- a/examples/with-mdx/package.json
+++ b/examples/with-mdx/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/mdx": "^3.1.5",
     "@astrojs/preact": "^3.5.2",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "preact": "^10.23.2"
   }
 }
diff --git a/examples/with-nanostores/package.json b/examples/with-nanostores/package.json
index 7c2a8bc2f9cd..25818c5654a6 100644
--- a/examples/with-nanostores/package.json
+++ b/examples/with-nanostores/package.json
@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/preact": "^3.5.2",
     "@nanostores/preact": "^0.5.2",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "nanostores": "^0.11.3",
     "preact": "^10.23.2"
   }
diff --git a/examples/with-tailwindcss/package.json b/examples/with-tailwindcss/package.json
index 713df62f87e0..77becb7d2535 100644
--- a/examples/with-tailwindcss/package.json
+++ b/examples/with-tailwindcss/package.json
@@ -14,7 +14,7 @@
     "@astrojs/mdx": "^3.1.5",
     "@astrojs/tailwind": "^5.1.0",
     "@types/canvas-confetti": "^1.6.4",
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "autoprefixer": "^10.4.20",
     "canvas-confetti": "^1.9.3",
     "postcss": "^8.4.41",
diff --git a/examples/with-vitest/package.json b/examples/with-vitest/package.json
index c15560eeb3e2..6e43f9ca6983 100644
--- a/examples/with-vitest/package.json
+++ b/examples/with-vitest/package.json
@@ -12,7 +12,7 @@
     "test": "vitest"
   },
   "dependencies": {
-    "astro": "^4.14.6",
+    "astro": "^4.15.0",
     "vitest": "^2.0.5"
   }
 }
diff --git a/packages/astro/CHANGELOG.md b/packages/astro/CHANGELOG.md
index 4646507c1824..4b77a50748ac 100644
--- a/packages/astro/CHANGELOG.md
+++ b/packages/astro/CHANGELOG.md
@@ -1,5 +1,177 @@
 # astro
 
+## 4.15.0
+
+### Minor Changes
+
+- [#11729](https://github.com/withastro/astro/pull/11729) [`1c54e63`](https://github.com/withastro/astro/commit/1c54e633274ad47f6c83c9a16f375f0caa983fbe) Thanks [@ematipico](https://github.com/ematipico)! - Adds a new variant `sync` for the `astro:config:setup` hook's `command` property. This value is set when calling the command `astro sync`.
+
+  If your integration previously relied on knowing how many variants existed for the `command` property, you must update your logic to account for this new option.
+
+- [#11743](https://github.com/withastro/astro/pull/11743) [`cce0894`](https://github.com/withastro/astro/commit/cce08945340312776a0480fc9ffe43929257639a) Thanks [@ph1p](https://github.com/ph1p)! - Adds a new, optional property `timeout` for the `client:idle` directive.
+
+  This value allows you to specify a maximum time to wait, in milliseconds, before hydrating a UI framework component, even if the page is not yet done with its initial load. This means you can delay hydration for lower-priority UI elements with more control to ensure your element is interactive within a specified time frame.
+
+  ```astro
+  <ShowHideButton client:idle={{ timeout: 500 }} />
+  ```
+
+- [#11677](https://github.com/withastro/astro/pull/11677) [`cb356a5`](https://github.com/withastro/astro/commit/cb356a5db6b1ec2799790a603f931a961883ab31) Thanks [@ematipico](https://github.com/ematipico)! - Adds a new option `fallbackType` to `i18n.routing` configuration that allows you to control how fallback pages are handled.
+
+  When `i18n.fallback` is configured, this new routing option controls whether to [redirect](https://docs.astro.build/en/guides/routing/#redirects) to the fallback page, or to [rewrite](https://docs.astro.build/en/guides/routing/#rewrites) the fallback page's content in place.
+
+  The `"redirect"` option is the default value and matches the current behavior of the existing fallback system.
+
+  The option `"rewrite"` uses the new [rewriting system](https://docs.astro.build/en/guides/routing/#rewrites) to create fallback pages that render content on the original, requested URL without a browser refresh.
+
+  For example, the following configuration will generate a page `/fr/index.html` that will contain the same HTML rendered by the page `/en/index.html` when `src/pages/fr/index.astro` does not exist.
+
+  ```js
+  // astro.config.mjs
+  export default defineConfig({
+    i18n: {
+      locals: ['en', 'fr'],
+      defaultLocale: 'en',
+      routing: {
+        prefixDefaultLocale: true,
+        fallbackType: 'rewrite',
+      },
+      fallback: {
+        fr: 'en',
+      },
+    },
+  });
+  ```
+
+- [#11708](https://github.com/withastro/astro/pull/11708) [`62b0d20`](https://github.com/withastro/astro/commit/62b0d20b974dc932769221d210b751627fb4bbc6) Thanks [@martrapp](https://github.com/martrapp)! - Adds a new object `swapFunctions` to expose the necessary utility functions on `astro:transitions/client` that allow you to build custom swap functions to be used with view transitions.
+
+  The example below uses these functions to replace Astro's built-in default `swap` function with one that only swaps the `<main>` part of the page:
+
+  ```html
+  <script>
+    import { swapFunctions } from 'astro:transitions/client';
+
+    document.addEventListener('astro:before-swap', (e) => { e.swap = () => swapMainOnly(e.newDocument) });
+
+    function swapMainOnly(doc: Document) {
+      swapFunctions.deselectScripts(doc);
+      swapFunctions.swapRootAttributes(doc);
+      swapFunctions.swapHeadElements(doc);
+      const restoreFocusFunction = swapFunctions.saveFocus();
+      const newMain = doc.querySelector('main');
+      const oldMain = document.querySelector('main');
+      if (newMain && oldMain) {
+        swapFunctions.swapBodyElement(newMain, oldMain);
+      } else {
+        swapFunctions.swapBodyElement(doc.body, document.body);
+      }
+      restoreFocusFunction();
+    };
+  </script>
+  ```
+
+  See the [view transitions guide](https://docs.astro.build/en/guides/view-transitions/#astrobefore-swap) for more information about hooking into the `astro:before-swap` lifecycle event and adding a custom swap implementation.
+
+- [#11843](https://github.com/withastro/astro/pull/11843) [`5b4070e`](https://github.com/withastro/astro/commit/5b4070efef877a77247bb05a4806b75f22e557c8) Thanks [@bholmesdev](https://github.com/bholmesdev)! - Exposes `z` from the new `astro:schema` module. This is the new recommended import source for all Zod utilities when using Astro Actions.
+
+  ## Migration for Astro Actions users
+
+  `z` will no longer be exposed from `astro:actions`. To use `z` in your actions, import it from `astro:schema` instead:
+
+  ```diff
+  import {
+    defineAction,
+  -  z,
+  } from 'astro:actions';
+  + import { z } from 'astro:schema';
+  ```
+
+- [#11843](https://github.com/withastro/astro/pull/11843) [`5b4070e`](https://github.com/withastro/astro/commit/5b4070efef877a77247bb05a4806b75f22e557c8) Thanks [@bholmesdev](https://github.com/bholmesdev)! - The Astro Actions API introduced behind a flag in [v4.8.0](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md#480) is no longer experimental and is available for general use.
+
+  Astro Actions allow you to define and call backend functions with type-safety, performing data fetching, JSON parsing, and input validation for you.
+
+  Actions can be called from client-side components and HTML forms. This gives you to flexibility to build apps using any technology: React, Svelte, HTMX, or just plain Astro components. This example calls a newsletter action and renders the result using an Astro component:
+
+  ```astro
+  ---
+  // src/pages/newsletter.astro
+  import { actions } from 'astro:actions';
+  const result = Astro.getActionResult(actions.newsletter);
+  ---
+
+  {result && !result.error && <p>Thanks for signing up!</p>}
+  <form method="POST" action={actions.newsletter}>
+    <input type="email" name="email" />
+    <button>Sign up</button>
+  </form>
+  ```
+
+  If you were previously using this feature, please remove the experimental flag from your Astro config:
+
+  ```diff
+  import { defineConfig } from 'astro'
+
+  export default defineConfig({
+  -  experimental: {
+  -    actions: true,
+  -  }
+  })
+  ```
+
+  If you have been waiting for stabilization before using Actions, you can now do so.
+
+  For more information and usage examples, see our [brand new Actions guide](https://docs.astro.build/en/guides/actions).
+
+### Patch Changes
+
+- [#11677](https://github.com/withastro/astro/pull/11677) [`cb356a5`](https://github.com/withastro/astro/commit/cb356a5db6b1ec2799790a603f931a961883ab31) Thanks [@ematipico](https://github.com/ematipico)! - Fixes a bug in the logic of `Astro.rewrite()` which led to the value for `base`, if configured, being automatically prepended to the rewrite URL passed. This was unintended behavior and has been corrected, and Astro now processes the URLs exactly as passed.
+
+  If you use the `rewrite()` function on a project that has `base` configured, you must now prepend the base to your existing rewrite URL:
+
+  ```js
+  // astro.config.mjs
+  export default defineConfig({
+    base: '/blog',
+  });
+  ```
+
+  ```diff
+  // src/middleware.js
+  export function onRequest(ctx, next) {
+  -  return ctx.rewrite("/about")
+  +  return ctx.rewrite("/blog/about")
+  }
+  ```
+
+- [#11862](https://github.com/withastro/astro/pull/11862) [`0e35afe`](https://github.com/withastro/astro/commit/0e35afe44f5a3c9f87b41dc89d5128b02e448895) Thanks [@ascorbic](https://github.com/ascorbic)! - **BREAKING CHANGE to experimental content layer loaders only!**
+
+  Passes `AstroConfig` instead of `AstroSettings` object to content layer loaders.
+
+  This will not affect you unless you have created a loader that uses the `settings` object. If you have, you will need to update your loader to use the `config` object instead.
+
+  ```diff
+  export default function myLoader() {
+    return {
+      name: 'my-loader'
+  -   async load({ settings }) {
+  -     const base = settings.config.base;
+  +   async load({ config }) {
+  +     const base = config.base;
+        // ...
+      }
+    }
+  }
+
+  ```
+
+  Other properties of the settings object are private internals, and should not be accessed directly. If you think you need access to other properties, please open an issue to discuss your use case.
+
+- [#11772](https://github.com/withastro/astro/pull/11772) [`6272e6c`](https://github.com/withastro/astro/commit/6272e6cec07778e81f853754bffaac40e658c700) Thanks [@bluwy](https://github.com/bluwy)! - Uses `magicast` to update the config for `astro add`
+
+- [#11845](https://github.com/withastro/astro/pull/11845) [`440a4be`](https://github.com/withastro/astro/commit/440a4be0a6ca135e47b0d37124c1be03735ba7ff) Thanks [@bluwy](https://github.com/bluwy)! - Replaces `execa` with `tinyexec` internally
+
+- [#11858](https://github.com/withastro/astro/pull/11858) [`8bab233`](https://github.com/withastro/astro/commit/8bab2339374763d19dbc4cc2c7ce4ad8a2a49694) Thanks [@ascorbic](https://github.com/ascorbic)! - Correctly resolves content layer images when filePath is not set
+
 ## 4.14.6
 
 ### Patch Changes
diff --git a/packages/astro/package.json b/packages/astro/package.json
index f2b232eccb60..faf4dfb5ec29 100644
--- a/packages/astro/package.json
+++ b/packages/astro/package.json
@@ -1,6 +1,6 @@
 {
   "name": "astro",
-  "version": "4.14.6",
+  "version": "4.15.0",
   "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/db/CHANGELOG.md b/packages/db/CHANGELOG.md
index 87c2df6e1161..734768c05bbd 100644
--- a/packages/db/CHANGELOG.md
+++ b/packages/db/CHANGELOG.md
@@ -1,5 +1,25 @@
 # @astrojs/db
 
+## 0.14.0
+
+### Minor Changes
+
+- [#11385](https://github.com/withastro/astro/pull/11385) [`d6611e8`](https://github.com/withastro/astro/commit/d6611e8bb05e7d913aeb5e59e90906b8b919d48e) Thanks [@Fryuni](https://github.com/Fryuni)! - Adds support for connecting Astro DB to any remote LibSQL server. This allows Astro DB to be used with self-hosting and air-gapped deployments.
+
+  To connect Astro DB to a remote LibSQL server instead of Studio, set the following environment variables:
+
+  - `ASTRO_DB_REMOTE_URL`: the connection URL to your LibSQL server
+  - `ASTRO_DB_APP_TOKEN`: the auth token to your LibSQL server
+
+  Details of the LibSQL connection can be configured using the connection URL. For example, `memory:?syncUrl=libsql%3A%2F%2Fdb-server.example.com` would create an in-memory embedded replica for the LibSQL DB on `libsql://db-server.example.com`.
+
+  For more details, please visit [the Astro DB documentation](https://docs.astro.build/en/guides/astro-db/#libsql)
+
+### Patch Changes
+
+- Updated dependencies []:
+  - @astrojs/studio@0.1.1
+
 ## 0.13.2
 
 ### Patch Changes
diff --git a/packages/db/package.json b/packages/db/package.json
index fbfb09d24c18..730d551f7211 100644
--- a/packages/db/package.json
+++ b/packages/db/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@astrojs/db",
-  "version": "0.13.2",
+  "version": "0.14.0",
   "description": "Add libSQL and Astro Studio support to your Astro site",
   "license": "MIT",
   "repository": {
diff --git a/packages/integrations/web-vitals/CHANGELOG.md b/packages/integrations/web-vitals/CHANGELOG.md
index 037e868a9a73..8e350c74ef9e 100644
--- a/packages/integrations/web-vitals/CHANGELOG.md
+++ b/packages/integrations/web-vitals/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @astrojs/web-vitals
 
+## 3.0.0
+
+### Patch Changes
+
+- Updated dependencies [[`d6611e8`](https://github.com/withastro/astro/commit/d6611e8bb05e7d913aeb5e59e90906b8b919d48e)]:
+  - @astrojs/db@0.14.0
+
 ## 2.0.0
 
 ### Patch Changes
diff --git a/packages/integrations/web-vitals/package.json b/packages/integrations/web-vitals/package.json
index fcf42d5360cf..cebe1319b410 100644
--- a/packages/integrations/web-vitals/package.json
+++ b/packages/integrations/web-vitals/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@astrojs/web-vitals",
   "description": "Track your website’s performance with Astro DB",
-  "version": "2.0.0",
+  "version": "3.0.0",
   "type": "module",
   "author": "withastro",
   "license": "MIT",
@@ -35,7 +35,7 @@
     "web-vitals": "^4.2.3"
   },
   "peerDependencies": {
-    "@astrojs/db": "^0.13.0"
+    "@astrojs/db": "^0.14.0"
   },
   "devDependencies": {
     "@astrojs/db": "workspace:*",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ac8d67daa5c5..ef9e2f2c26c6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -116,7 +116,7 @@ importers:
   examples/basics:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/blog:
@@ -131,13 +131,13 @@ importers:
         specifier: ^3.1.6
         version: link:../../packages/integrations/sitemap
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/component:
     devDependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/container-with-vitest:
@@ -146,7 +146,7 @@ importers:
         specifier: ^3.6.2
         version: link:../../packages/integrations/react
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       react:
         specifier: ^18.3.1
@@ -177,7 +177,7 @@ importers:
         specifier: ^3.14.1
         version: 3.14.1
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/framework-lit:
@@ -189,7 +189,7 @@ importers:
         specifier: ^0.2.1
         version: 0.2.1
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       lit:
         specifier: ^3.2.0
@@ -219,7 +219,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       preact:
         specifier: ^10.23.2
@@ -249,7 +249,7 @@ importers:
         specifier: ^1.3.0
         version: 1.3.0(preact@10.23.2)
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       preact:
         specifier: ^10.23.2
@@ -267,7 +267,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       react:
         specifier: ^18.3.1
@@ -282,7 +282,7 @@ importers:
         specifier: ^4.4.1
         version: link:../../packages/integrations/solid
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       solid-js:
         specifier: ^1.8.22
@@ -294,7 +294,7 @@ importers:
         specifier: ^5.7.0
         version: link:../../packages/integrations/svelte
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       svelte:
         specifier: ^4.2.19
@@ -306,7 +306,7 @@ importers:
         specifier: ^4.5.0
         version: link:../../packages/integrations/vue
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       vue:
         specifier: ^3.4.38
@@ -318,13 +318,13 @@ importers:
         specifier: ^8.3.3
         version: link:../../packages/integrations/node
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/integration:
     devDependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/middleware:
@@ -333,7 +333,7 @@ importers:
         specifier: ^8.3.3
         version: link:../../packages/integrations/node
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       html-minifier:
         specifier: ^4.0.0
@@ -346,19 +346,19 @@ importers:
   examples/minimal:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/non-html-pages:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/portfolio:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/server-islands:
@@ -385,7 +385,7 @@ importers:
         specifier: ^18.3.0
         version: 18.3.0
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       postcss:
         specifier: ^8.4.41
@@ -409,7 +409,7 @@ importers:
         specifier: ^5.7.0
         version: link:../../packages/integrations/svelte
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       svelte:
         specifier: ^4.2.19
@@ -418,7 +418,7 @@ importers:
   examples/starlog:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       sass:
         specifier: ^1.77.8
@@ -430,7 +430,7 @@ importers:
   examples/toolbar-app:
     devDependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/view-transitions:
@@ -442,7 +442,7 @@ importers:
         specifier: ^5.1.0
         version: link:../../packages/integrations/tailwind
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/with-markdoc:
@@ -451,7 +451,7 @@ importers:
         specifier: ^0.11.4
         version: link:../../packages/integrations/markdoc
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/with-markdown-plugins:
@@ -460,7 +460,7 @@ importers:
         specifier: ^5.2.0
         version: link:../../packages/markdown/remark
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       hast-util-select:
         specifier: ^6.0.2
@@ -481,7 +481,7 @@ importers:
   examples/with-markdown-shiki:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
 
   examples/with-mdx:
@@ -493,7 +493,7 @@ importers:
         specifier: ^3.5.2
         version: link:../../packages/integrations/preact
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       preact:
         specifier: ^10.23.2
@@ -508,7 +508,7 @@ importers:
         specifier: ^0.5.2
         version: 0.5.2(nanostores@0.11.3)(preact@10.23.2)
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       nanostores:
         specifier: ^0.11.3
@@ -529,7 +529,7 @@ importers:
         specifier: ^1.6.4
         version: 1.6.4
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       autoprefixer:
         specifier: ^10.4.20
@@ -547,7 +547,7 @@ importers:
   examples/with-vitest:
     dependencies:
       astro:
-        specifier: ^4.14.6
+        specifier: ^4.15.0
         version: link:../../packages/astro
       vitest:
         specifier: ^2.0.5