CHANGELOG.md

Changelog

Unreleased

1.6.2

• Update readme

1.6.0

• Remove optimizations that make use of jax.ensure_compile_time_eval. Bugs introduced in newer versions of jax forced gym to be pinned to an earlier jax version. With the optimizations removed, compatibility with the latest jax versions is restored.
• Ensure that the fixed_solid or fixed_void attributes of density arrays are always numpy arrays. If these are jax arrays, jax can hang while compiling. The latest version of totypes also validates that the attributes are numpy arrays.
• Modify the extractor challenge, parallelizing the eigensolve to improve performance.
• Update for use of fmmax 1.4.0, which shifts the coordinates associated with arrays defined on the unit cell. This motivates commensurate shifts in sources for challenges making use of localized sources, and slight changes in regression test reference values.

1.5.1 (April 7, 2025)

• Library challenge: fix inadvertent conversion of metasurface thickness from scalar to 1D array.

1.5.0 (March 17, 2025)

• Update usage of fmmax for the 1.0.0 api.

1.4.11 (March 6, 2025)

• Remove keyword arguments in call to fmmax.fields.time_average_z_poynting_flux to accommodate an upcoming change to the fmmax api.

1.4.10 (March 3, 2025)

• FMMAX has added a function fields.time_average_z_poynting_flux, which makes some private functions defined in this package redundant. Remove the private functions and use the FMMAX function instead.

1.4.9 (January 24, 2025)

• Accommodate float-typed wavelength in the utils.materials module.

1.4.8 (January 17, 2025)

• Update use of jax.pure_callback to detect the jax version, and select the appropriate behavior under vmap.

1.4.7 (January 17, 2025)

• Update utils.materials to ensure no type promotion occurs when computing permittivity. For example, when wavelength has type float32, permittivity should have type complex64 even if 64 bit precision is enabled.

1.4.6 (January 15, 2025)

• Update dependencies specified in pyproject.toml to allow jax versions equal to or greater than 0.4.27.