Sitefinity® CMS 15.4 Update is Here—Built for What's Next
August 09, 2026
The .NET Core Renderer can now serve fully rendered pages from a shared output cache rather than re-rendering them on every request. The cache is shared across the entire deployment, so a page rendered once is served from cache to all subsequent visitors regardless of which instance handles the request. Cache entries are invalidated automatically by the CMS when content is published, so visitors always receive current content without a manual purge.
This significantly reduces the time to first byte for pages that are not already cached at the CDN edge, and reduces load on the CMS during traffic spikes and after cache invalidation. The capability requires Sitefinity CMS 15.4.8635 or later and is enabled per environment. It is being rolled out gradually across projects.
Learn more about caching and performance here.
A new read-only View Users permission has been added to User Management. Users assigned this permission can open User Management and see the list of users and their group assignments, but cannot invite, edit, or remove users or change group membership.
This makes it possible to give team leads, auditors, and support staff visibility into who has access to a project without granting them the ability to change it. The permission is available as a group alongside the existing Manage Users group and is assigned the same way.
Learn more about User management here.
Meaningful engagement, elevated experiences delivered with ease.
Set your sites on Sitefinity.