Full timestamp for bounces
Bounces returned from List Email Activity will have a full timestamp, and can be filtered with more granular timing using the since parameter.
Our bounces would return the day of the bounce in their timestamp, but no specific time information. We’ve fixed it so bounces return the detailed time.
No longer redirecting HTTP requests
Previously, when an HTTP request was sent to the Marketing API, we redirect it to HTTPS. We’ve now stopped redirecting these requests and will instead return an HTTP 426 error code indicating the request needs to use HTTPS.
Users with affected API keys or Authorized Apps should have received an email about the change.
Although the Marketing API only accepts HTTPS requests, providing a redirect meant it still supported sending an initial HTTP request that transmitted a user’s sensitive information in plaintext. Returning a 426 error with the appropriate message helps ensure integrations are sending their requests securely.