---
title: Earlier Alpha Modes
lastModified: "2026-10-10T14:59:21+01:00"
lastAuthor: Kaylee
---
|Removed|Use instead|
|--|--|
|`hosted({ url })`|`hosted({ backendURL })`, or the framework's backend URL variable|
|`createManifestTransport({ manifest })`|`createManifestTransport({ snapshot })`|
|`assertDecisionInputs` defaulting to `false` on `hosted()`|It now defaults to `true` whenever `initURL` is set. Pass `false` to turn it off.|
|`hostedModes` from `c15t/runtime/provider`|`readHostedMode(mode)`|
|`buildManifest: true` in Astro and Nuxt|`onBuildError: 'fail'`, the default for production builds. `buildManifest: false` is `manifest({ source: 'runtime' })`.|
|A generated `c15t-manifest.ts` and its `.gitignore` entry|`import { snapshot } from 'c15t/generated'`. Most apps no longer import it at all.|
|The build options `outputFile`, `exportName`, `importSource` and `rootDir`|Removed. The snapshot is a virtual module, or a file under `node_modules/.cache/c15t/` in Next.js.|