CHANGELOG¶

Unreleased ¶

2.1.5 - 2026-09-01¶

No significant changes.

2.1.4 - 2026-08-13¶

Lumerical S-parameter simulations no longer require the active PDK to define a PADDING layer. #762
Lumerical simulations now materialize LayerStack background layers without requiring a PDK PADDING layer. #763
Lumerical simulations now keep optical ports on layers absent from the simulation LayerStack. #764
Lumerical mode ports on layers absent from the simulation LayerStack now use the component vertical extent. #765

2.1.3 - 2026-08-12¶

Use the published meshwell 2.1.1 release for the Femwell and meshwell extras. #760
Prevent tbump from modifying dependency constraints during package version bumps. #761

2.1.2 - 2026-08-12¶

fix: support canonical material aliases #759
build(deps): bump actions/setup-python from 6 to 7 #748
rename deprecated generic_tech to gpdk #752
fix: follow symlinks in nbdocs so notebook pages render #744
fix: use tqdm.auto for proper notebook progress bar rendering #751
fix: remove duplicated summary pages from docs nav #747
fix: resolve docs/notebooks symlink so notebook pages render #745
Add EMode plugin #733
Fix broken documentation URLs #741

2.1.1 - 2026-07-25¶

Migrate docs from Jupyter Book to zensical #737
fix(gmeep): activate generic PDK in MPI subprocess script #720
fix: replace dead SAX docs link in sax_01_sax notebook #726
build(deps): bump conda-incubator/setup-miniconda from 3 to 4 #721
build(deps): bump release-drafter/release-drafter from 6 to 7 #722
build(deps): bump tornado from 6.5.5 to 6.5.6 in the uv group across 1 directory #727
build(deps): bump starlette from 1.0.0 to 1.0.1 in the uv group across 1 directory #725
build(deps): bump conda-incubator/setup-miniconda from 3 to 4 #721
build(deps): bump aiohttp from 3.13.5 to 3.14.0 in the uv group across 1 directory #724
build(deps): bump release-drafter/release-drafter from 6 to 7 #722
build(deps-dev): update sax requirement from ~=0.17.0 to >=0.17,<0.19 #723
build(deps): bump the uv group across 1 directory with 5 updates #719
build(deps-dev): update pyvista requirement from <=0.48.2 to <=0.48.4 #717

2.1.0 - 2026-05-17¶

Remove meshing module #670 #670
Allow 2D meep simulations in X- or Y-normal direction #672 #672
Check mesh order in LayerLevel.info instead of LayerLevel.mesh_order in meshwell #681 #681
Add target_neff parameter to mode solver and track_modes to sweep_bend_mismatch #716 #716
Clean up get_meep_geometry_from_component #671 #671
Rewrite patch_netlist for flat or recursive cases #675 #675
Bump tidy3d to version >= 2.10 and fix meow/sax incompatibility #698 #698
Bump sax to ~=0.17.0 #715 #715
Use lossless SiO2 by default #716 #717
Fix gmeep caching: remove kfactory metadata from hashing #679 #679
Use TemporaryDirectory while hashing gds files to avoid multi-process race conditions #682 #682
Add mode settings to hashed parameters #683 #683
Fix cascaded MZI notebook #685 #685
Relax constraint on numpy version #686 #686
Fix docs build with uv sync #694 #694
Fix Palace CI with pinned Apptainer tag #700 #700

2.0.1 - 2026-01-30¶

fix elmer #665
Remove matthew from codeowners #666
Fix region_to_shapely_polygons #662
update luminescent #661
Fix extrusion layer handling in MEOW class by using layer tuples #668
update sax #669

2.0.0 - 2025-11-13¶

refactor meshwell plugin #633
Add minimal Copilot Setup Steps #654
Fix Palace availability in CI documentation builds using Apptainer containers #652
Fix Palace capacitance computation for new meshwell #641
Fix Jupyter Book logo paths in documentation configuration #650
Run pre-commit hooks #648
Fix vlsir tests for newer gdsfactory #646
Replace non-existent Palace Docker image with Apptainer-based CI setup #643
Add palace in github actions, fix palace electrostatics simulation. #631
better error message for gc sim #638
Fix region_to_shapely_polygons #662
Bump actions/setup-python from 5 to 6 #655
Bump astral-sh/setup-uv from 6 to 7 #659
Fix Jupyter Book logo paths in documentation configuration #650
Bump actions/upload-pages-artifact from 3 to 4 #636
Bump actions/checkout from 4 to 5 #637
update luminescent #661
refactor meshwell plugin #633
Fix Jupyter Book logo paths in documentation configuration #650
Run pre-commit hooks #648
Update logos #628

1.4.2 - 2025-08-13¶

fix docs #625
sax plot_model: better log scaling, better labelling #621
improve changelog #626

1.4.1 - 2025-08-09¶

better title for plot model #620
Improve path-length extraction notebook #611
improve femwell mode solver notebooks #619
Fixed/updated edgeports in gmsh plugin #614
Bump xarray from 2025.1.2 to 2025.7.1 #615
Bump gmsh from 4.13.0 to 4.14.0 #613
[pre-commit.ci] pre-commit autoupdate #599

1.4.0 - 2025-06-22¶

More Voronoi extraction tests #608
Add codeowners file #607
Improve centerline extraction plugin #602
Remove mypy from pre-commit #606
fix palace #597
fix_mypy #596
update readme #595
bump sax #609

1.3.8 - 2025-06-06¶

Fix lumerical extension #594

1.3.7 - 2025-05-30¶

improve meep plugin and add tests #592

1.3.6 - 2025-05-26¶

remove meshwell dep from tidy3d plugin for easier arm installation #589

1.3.5 - 2025-05-25¶

Fix meep #587
add padding_layers to write_sparameters_meep, meep geometry fix, get_port_layers fix in base_models #584

1.3.4 - 2025-05-14¶

Fix meep #587
add padding_layers to write_sparameters_meep, meep geometry fix, get_port_layers fix in base_models #584
simpler flow #570
removing gdstk dependencies anywhere other than the tidy3d module #583

1.3.3 - 2025-04-13¶

Fix tidy3d holes and update tidy3d #567
Fix mypy #568
[pre-commit.ci] pre-commit autoupdate #563
update meow #569

1.3.0 - 2025-02-20¶

GDSFactory 9 #549
remove broken code from docs #545
remove dagster plugin #550
GDSFactory 9 #549
Update meow-sim requirement from ~=0.11.0 to >=0.11,<0.13 #546

1.2.4 - 2025-01-11¶

Fix ruff #535
fix tidy3d cache #534
fix flatten #529
Fix X SPICE element parsing for Calibre-style model names #528

1.2.3 - 2024-12-25¶

fix grating couplers in tidy3d #522

1.2.2 - 2024-12-20¶

fix docstring #519
update to latest gdsfactory #518

1.2.1 - 2024-12-15¶

update changelog #516
unpin vlsir #515

1.2.0 - 2024-12-12¶

add luminescent #507
fix docs #511
fix ruff issues #506
Update ruff version #503
fix docs #511
use uv #509
[pre-commit.ci] pre-commit autoupdate #505
unpin vlsir #515
[pre-commit.ci] pre-commit autoupdate #513
allow numpy2 #508
update tidy3d and unpin numpy #501

1.1.5 - 2024-11-27¶

Update ruff version #503
update tidy3d and unpin numpy #501

1.1.4 - 2024-11-22¶

Update gdsfactory #495

1.1.3 - 2024-11-15¶

Fix lumerical fdtd #486
Fix path-length extraction of bbox-like polygons #478
add ruff #488
Update get_simulation.py (component_ref.ports correction) #476
Update meep_adjoint_optimization.py. component.copy() to component.dup() #475
process plugin version #471
Make 3d net layers work #469
Fix repeated points #470
Update numpy requirement from <2 to <3 #484
Update sax requirement from ~=0.13.1 to >=0.13.1,<0.15.0 #492
pin numpy #473
[pre-commit.ci] pre-commit autoupdate #479

1.1.2 - 2024-08-15¶

Support instances in path-length extraction from gds #468
update pins #466

1.1.1 - 2024-08-13¶

Improvements to path length code #461
pin vlsir #464
rename validate call #462

1.1.0 - 2024-08-05¶

Robust path length extraction #453
Improve path extraction from GDS #447
Fix sax and vlsir tests #459
Fix netlist extraction issue #458
fix notebooks #455
update sax notebook #454
fix docs #450
Fix klayout netlist #442
fixed plot_model xlabel #443
Fix path length #438
Update gdsfactory850 #435
Update path length analysis #436
fix meow #441

1.0.1 - 2024-06-20¶

fix write_drc #428

1.0.0 - 2024-06-20¶

Gdsfactory8 #413
Color net labels differently in imported SPICE graph #423
Strip brackets from model name in Calibre SPICE reader #419
tidy3d fixes #421

0.14.0 - 2024-06-02¶

fix notebooks #411
fix tests #409
Fix SPICE plotting example notebook #398
Fix Elmer tests in CI, fixes towards Palace #395
improve SDL interconnect docs #401
Sdl #393

0.13.0 - 2024-04-28¶

Add padding layer to gplugins #387
allow mmi imbalance #386
Support custom IO streams in execute_and_stream_output #385
tcad scripts #382
add gfviz #363
small doc fixes #380
improve femwell plugin #377
retire devsim doc #296
update tidy3d #378

0.12.0 - 2024-04-09¶

Better error for wrong top_cell in netlist to networkx #373
Improve KLayout-based SPICE handling to support Calibre LVS with generic devices #371
fix autolabeler #375
update jaxlib and flax #376
fix tests #372

0.11.0 - 2024-03-24¶

add more sax models #364
Add models #357
fix polygon hole not meshing #362

0.10.2 - 2024-03-06¶

Update sax #354

0.10.1 - 2024-03-05¶

fix grating prefix for tidy3d plugin #351

0.10.0 - 2024-03-05¶

basic python-driven density analytics, using klayout tiling processor #339
Fix tidy3d grating couplers new port names and add drc samples #350
better pyproject #342
better global density estimation #340
Mention correct pinned pyvis version #338
fix xy meshing #349
add cellname parametrization, update pyproject for pre-commit to run #343

0.9.13 - 2024-02-07¶

pin older version of meshwell #334
pin latest working version of jax and jaxlib for sax to work #332

0.9.12 - 2024-02-07¶

background meshing #319
Mesh smoothing #320
Component with local layers #318
Update component.py #315
bump meow and sax #308
also ignore layers without thickness or zmin in geometry_layers #311
Switch to using a context manager for disable_print #310
fix sax notebook #307
Pyright remove unused expression #304
Include tqdm in project dependencies #295
require labels on PRs and remove stale #329

0.9.11 - 2024-01-09¶

fix path_length_analysis #293

0.9.10 - 2024-01-07¶

use notebooks for ease of use #284
update to work with latest gdsfactory >=7.10.1

0.9.9 - 2023-12-19¶

[pre-commit.ci] pre-commit autoupdate #282
Add drc counter #280
Bump tidy3d from 2.5.0rc3 to 2.5.0 #278
fix docs #276
[pre-commit.ci] pre-commit autoupdate #274

0.9.8 - 2023-12-11¶

Round port locations and layer centers to one picometer by default #273

0.9.7 - 2023-12-05¶

expose symmetry and other tidy3d simulation args #269
Update kfactory[git,ipy] requirement from <0.10,>=0.9.3 to >=0.9.3,<0.11 #267

0.9.6 - 2023-12-04¶

uping gdsfactory upper bound #266

0.9.5 - 2023-12-03¶

ask users to report version and fix kfactory pin #263

0.9.4 - 2023-12-01¶

allow complex materials and rely on tidy3d hash function #261

0.9.3 - 2023-12-01¶

Check for AbstractMedium instead of Medium in validator #260

0.9.2 - 2023-11-30¶

Fix port centers in z #258
fix plot center_z #257

0.9.1 - 2023-11-30¶

Add tidy3d plot epsilon #256
Fix mzi notebook and batch #255

0.9.0 - 2023-11-29¶

remove webapp #252
remove black #250
[pre-commit.ci] pre-commit autoupdate #241
fix mpb cmap #249
Tidy3d rework2 #239
Support reducing nodes in plot nets #245
Treating E and H as complex while plotting abs(E) #248

0.8.7 - 2023-11-21¶

Assorted changes in docs and support .spi files for plot_nets #237
Fix type annotation for port #235
fix sdl for vscode #234
Update vlsir requirement from <5.0.0,>=4.0.0 to >=4.0.0,<6.0.0 #230
Update vlsirtools requirement from <5.0.0,>=4.0.0 to >=4.0.0,<6.0.0 #229
add save_options argument when writing gds #228
[pre-commit.ci] pre-commit autoupdate #227
Gmeep: Multimode Simulations #222
fix docs #226
Ensure unique SPICE netlist elements with a counter #224

0.8.6 - 2023-11-08¶

[pre-commit.ci] pre-commit autoupdate #220
Write output to a new library so we can reuse cell names #219
Remove HSPICE netlist comments for plot_nets #218
Improve dataprep #216
Layer to keep dict #215
Support multiple top cells and SPICE netlists in plot_nets #214
Add flake8-debugger checks to ruff #210
Export raw NumPy array capacitance matrix for ElectrostaticResults #208
Use temporary directory factory in session scope tests #207
Update get_material.py #206
Match labels to corresponding cells in netlist #204
Add interactive netlist plotting #199
Parametrize VLSIR netlist export test and cache Package #200
switch to mamba #197
Consider the case in get_l2n when no layer connections are given in PDK #191
Support non-fully-connected netlists in plot_nets #194
Fix Elmer & Palace tests #195
Generate technology and support layer connectivity in get_l2n #185
Rename gds_ports -> ports, fix port centers and remove port size calculation from base #183
improve ring docs #182
remove database #181
add derived layers #180
fix docs with conda #178
Polish some things in SPICE netlist extraction #177
add derived layers #175
layernames to physical labels dict #174