#17323 4298883 Thanks @ematipico! - Fixes build-time image optimization ignoring a custom image service registered by an integration

Previously, when using imageService: 'compile' or imageService: 'custom', a custom image service was only respected if it was set directly in the image.service option of astro.config. If an integration registered the service instead, images were silently optimized with the default Sharp service at build time. A custom image service now transforms your images at build time no matter how it was configured.

#17323 4298883 Thanks @ematipico! - Prebundles astro/components and the <ClientRouter /> transition runtime modules in the dev server environment so pages using them no longer trigger a mid-session dep optimizer reload, which caused React "Invalid hook call" errors in islands on the first request after a cold cache

#17323 4298883 Thanks @ematipico! - Fixes an issue where vars weren't available at build time. Now the adapter loads vars from the Wrangler config so astro:env public variables resolve at build time

Updated dependencies []:

• @astrojs/underscore-redirects@1.0.3

#17318 23a4120 Thanks @astrobot-houston! - Fixes CSS module scoped-name hash mismatch in astro dev when using vite.css.transformer: 'lightningcss' with content collections. Previously, a component importing a CSS module and rendered via content collection render() would get different class name hashes in the element and the injected <style> tag, causing styles not to apply.

#17323 4298883 Thanks @ematipico! - Fixes a dev server memory leak which caused Node.js to emit warnings in the console.

#17323 4298883 Thanks @ematipico! - Fixes a dev server crash when a .html or /index.html suffixed request (such as those netlify dev probes as pretty-URL fallbacks) matched a dynamic endpoint route, causing a TypeError: Missing parameter error

#17325 cebc404 Thanks @astrobot-houston! - Fixes a bug where CSS @import rules could end up mid-stylesheet after inline CSS chunks were merged during build, causing browsers to silently ignore them

#17323 4298883 Thanks @ematipico! - Fixes a build regression that could leave unresolved preload markers in inlined scripts with external dynamic imports

Updated dependencies [4298883, 4298883]:

• @astrojs/telemetry@3.3.3

#17323 4298883 Thanks @ematipico! - Refactors internal WSL detection by removing the is-wsl dependency.

#17323 4298883 Thanks @ematipico! - Replaced which-pm-runs dependency with package-manager-detector

#17252 eb6f97e Thanks @matthewp! - Fixes trailing-slash handling for request paths that begin with a backslash

With trailingSlash: 'always', the standalone Node server could append a trailing slash to a request path that begins with a backslash (for example /\example.com/foo) and echo that path back in the Location header of a 301 response. Because browsers resolve a leading \ the same way as /, the resulting Location could point off-site.

Such paths are now recognized as internal paths, matching the existing handling for paths that begin with //, so they are no longer rewritten with a trailing slash.

Updated dependencies [eb6f97e]:

• @astrojs/internal-helpers@0.10.1

• @astrojs/internal-helpers@0.10.1
• @astrojs/underscore-redirects@1.0.3

#17261 79aa99c Thanks @astrobot-houston! - Fixes a false deprecation warning for markdown.gfm and markdown.smartypants when using the Container API

#17247 f94280d Thanks @chatman-media! - Fixes route generation throwing "Missing parameter" (or silently dropping the segment) when a dynamic param's value is 0. The generator used truthy checks instead of checking for undefined, so paginate(posts, { params: { categoryId: 0 } }) would crash even though 0 is a perfectly valid param value.

#17278 6f11739 Thanks @astrobot-houston! - Fixes missing CSS for virtual style modules (e.g., responsive image layout styles) in dev mode when JavaScript is disabled

#17250 0b30b35 Thanks @matthewp! - Fixes the security.checkOrigin check so it is applied consistently to Astro Actions and on-demand endpoints, regardless of how the request pipeline is composed. Previously, the origin check could be skipped in the composable astro/hono pipeline depending on the order of the middleware() primitive (or when it was omitted).

#17274 8c3579b Thanks @astrobot-houston! - Fixes missing render() type overload for live collection entries. Previously, calling render() on a LiveDataEntry produced a TypeScript error when using only live.config.ts without a content.config.ts.

#17257 4208297 Thanks @astrobot-houston! - Fixes astro check failing to find @astrojs/check and typescript when astro is installed in a directory outside the project tree (e.g. pnpm virtual store)

#17272 b428648 Thanks @matthewp! - Fixes island component paths so that extensionless imports (e.g. import { Counter } from '../components/Counter') resolve to the real file on disk, matching Vite's extension order and directory index resolution. This makes the include/exclude options of JSX renderer integrations (React, Preact, Solid) match components imported without a file extension, and removes the spurious React 19 "Invalid hook call" warning logged on every request in dev when include was set alongside another JSX renderer

#17279 2aeaa44 Thanks @astrobot-houston! - Fixes a bug where <Picture inferSize> with a remote image could fail with FailedToFetchRemoteImageDimensions when the image server rate-limits requests (e.g. HTTP 429). Remote dimensions are now resolved once per render instead of once per output format.

#17251 5240e26 Thanks @matthewp! - Hardens the handling of attribute rendering when using with custom elements.

#17248 429bd62 Thanks @astrobot-houston! - Fixes a crash when using Astro's getViteConfig with Vitest browser mode (e.g., Storybook vitest runner). Astro now skips dev server setup inside Vitest, preventing errors.

#17260 14524c0 Thanks @matthewp! - Fixes a regression where a <script> inside a component rendered through Astro.slots.render() was hoisted out of its original position instead of staying next to its component content

Updated dependencies [eb6f97e]:

• @astrojs/internal-helpers@0.10.1
• @astrojs/markdown-remark@7.2.1
• @astrojs/markdown-satteri@0.3.3

• @astrojs/internal-helpers@0.10.1
• @astrojs/markdown-remark@7.2.1