Preview integration artifacts are now sourced from npm/Maven packages instead of committed copies

Previously, the CoreMedia preview integration scripts (c{{oremedia.preview.js}}, coremedia.preview.blueprint.js, previewProtocol.js) were checked into the blueprint workspace as hard copies. Now, these files are pulled from their single source of truth — the @coremedia/preview-bootstrap, @coremedia/preview-protocol, and @coremedia/preview-placement-highlighting packages — at build time, with the version centralized via Maven version properties and the pnpm catalog.

This removes duplicated, drift-prone copies and ensures every consumer (CAE, Headless Server, Studio Client) uses a consistent preview-integration version.

Changed static path (Headless Server)

The Headless Server's json-preview-client now serves the preview bootstrap script at:

/static/preview/coremedia.preview.js

It was previously served at /static/coremedia.preview.js. The bundled previewJson.html template has been updated accordingly. If you reference this script directly from a custom preview client or template, update the path.

For a standard blueprint

No action is required for the preview scripts — they are generated automatically during mvn install / pnpm build. Only update any hard-coded references to the old /static/coremedia.preview.js path.

Upgrade Information

If you reference the Headless Server preview bootstrap script directly, change the URL from /static/coremedia.preview.js to /static/preview/coremedia.preview.js.

(CMS-30731)

CAE now clears Freemarker template cache after theme/template updates

Fixed CMS-30687 Closed by automatically clearing the Freemarker template cache when themes or templates change, so updates are visible immediately instead of waiting for cache expiry (up to 1h on live delivery systems in default configuration).

(CMS-30687)