Oct 7, 2025 — Increased max size for response status and headers generated using createReponse()

The maximum size of the response status and header for responses generated using createResponse() is now 16 K. This increase provides additional header flexibility when building your edge applications.

The maximum size of 16 K is subject to CDN response header limits. To avoid exceeding the limit contact your support team to see if you need to increase the response header size limit.