v1.12.0

• Faster 2d simulations with nonzero kz via the kz_2d option (#1047).

• New Meep verbosity option superseding quiet and verbose flags (#994).

• Output now only shows ≤ 10 geometric objects by default (#1002).

• Performance improvements for split_chunks_evenly=False.

• Fixed memory leaks (#1041, #1042).

v1.11.0

• Experimental support for gyrotropic media including magneto-optical effects (#863).

• Mode decomposition for oblique waveguides (#940, #945) and dispersive materials (#919).

• Accept tuples in place of Vector3 arguments (#960).

• Capture C++ error messages in Python notebooks (#953).

• Automatically abort simulation if the fields blow up (#922).

• Print additional timing statistics (#927, #952).

• Various small bugfixes and documentation improvements.

v1.10.0

• New Python functions for simple visualization of the simulation domain (#872).

• Capture Meep and MPB output in Python notebooks (#891,

• Add optional meep.quiet() parameter to the Python interface (#876).

• Python evaluation of materials ε(ω) and μ(ω) (#862).

• Experimental multithreading support for near2far calculation (#868) and other speedups (#869).

• Add stop_after_walltime and stop_on_interrupt in Python (#860).

• GDSII file introspection (#817).

• Various small bugfixes and documentation improvements.

v1.9.0

• Adjoint solver to compute sensitivity of solution to material perturbations (#795).

• Experimental do_averaging feature for user-defined material functions (#771, #791).

• Periodic boundaries support in near2far via nperiods option (#769, #789).

• Capture more output in Python notebooks (#785, #807).

• dft-energy feature (#744, #747).

• Eigenmode sources are normalized to unit power (#728).

• Fix interpolation of DFT slice output (#787).

• Bug fix in run-k-points (#779).

• Eigenmode sources for negative angles (#752).

• Various other minor bugfixes, build fixes, documentation improvements, tutorials, etcetera.

v1.8.0

--without-scheme (#705), oblique sources (#675), user materials in conductivity (#689), load balancing (#681), visualize_chunks (#671), improved stability of lorentzian susceptibility (#666), array metadata (#655), source slice (#652), and various other improvements.

v1.7.0

Multilevel atoms (#500), GDSII regions in Python (#518), dominant planewave output in eigenmode solver (#531), dft-flux (etc.) computations in CW solver (#570), Python Ldos (#581), geometry_center in Python (#599), epsilon from numpy array (#593), medium transform function (#603).

v1.6.0

GDSII import in Python (#392), source amplitudes from HDF5 (#388), symmetry support in mode decomposition (#417), compatibility with latest Guile and Python versions (#419 and #456), integrated materials-library support (#479, #483), structure dump/load for dispersive materials (#454).

Meep 1.5

Python MPB, mode decomposition, DFT slices, prism objects, and more.

Meep 1.4.3

Allow meep Python module to be imported without setting PYTHONPATH (#189).

Meep 1.4.2

Build fix for Python due to missing file (#184).