The page describes the new functionalities of Version 4.0.5 of the TFEL project.

This version was released on May 12, 2025 along with:

• Version 3.0.15,
• Version 3.1.15,
• Version 3.2.12,
• Version 3.3.7,
• Version 3.4.8,

and inherits from all fixes from those releases.

1 Issues fixed

1.1 Issue 738: getIntegrationVariablesDerivatives is broken for scalar gradients

For more details, see https://github.com/thelfer/tfel/issues/738

1.2 Issue 703: std::shared_ptr::unique has been removed in C++20

For more details, see https://github.com/thelfer/tfel/issues/703