Hyperion - Client

Hyperion API V3 Deprecation

Written by A. Marc Passy | Oct 15, 2025 1:00:04 PM

 

We're announcing the deprecation of Hyperion API Version 3 in favor of the new Version 4, which offers enhanced performance, improved security, and expanded functionality.

What This Means:

  • Hyperion API V3 is now deprecated but remains fully operational.
  • We strongly recommend migrating to V4 to take advantage of new features and improvements
  • V3 will continue to be supported for the foreseeable future to ensure a smooth transition
  • No new features will be rolled into V3, and only bug fixes will be added.
  • We guarantee at least 3 months' advance notice before any V3 shutdown.

Why We're Making This Change: Version 4 introduces significant enhancements including better error handling, improved performance, and new endpoints.

Migration Status: While most functionality has been migrated to V4, we're aware that a couple of endpoints are still pending migration. These remaining endpoints will be available in V4 soon, and we'll notify you as they become available.  The key rotation that occurred recently is immaterial to this deprecation - new keys work in both versions.  (If they don't, please don't hesitate to contact us at support@synmax.com )

Next Steps:

  • Consult our migration guide for advice.
  • Plan your migration timeline - while there's no immediate deadline, early adoption ensures you benefit from ongoing improvements.  V4 is fully operational today. 

Support: Our team is here to assist with your transition. Contact support@synmax.com with any questions or concerns about migrating from V3 to V4.

We appreciate your partnership and look forward to supporting your continued success with Hyperion API Version 4.