Intel PCS API versions 2 and 3 – EOL Date Extended to April 30, 2026

[Scott_R_Intel]

Dear Intel^® SGX Customers,

Intel previously communicated plans to End of Life (EOL) the deprecated API version 2 and version 3 for the Intel® SGX PCS by October 31, 2025. We have recently extended the timeframe before which these service versions will be fully EOL’ed by 6 months, to April 30, 2026.

The deprecation message the listed API versions are currently returning will be updated to reflect new EOL date.

For details on what changes occurred between versions and how to migrate, please review:

• V2 to V3 Migration Guide
• V3 to V4 Migration Guide

Potential Action Required

Current consumers of the deprecated API versions should work to transition to using Intel PCS API version 4 as soon as possible prior to the planned EOL date.

Other Resources and Repositories

 Intel PCS detailed API documentation can be found here.

Please note that Intel has made significant updates to our TCB recovery / Attestation guidance and policies in the last 6 months. For additional details, please see the Remote Attestation Process section of the Trusted Computing Base Recovery technical paper. To support these policy changes, Intel also updated the capabilities of our security services.

Thank You,

Intel SGX & TDX Services Team