Gdsfactory

- propagate cross_section arg into taper [PR](https://github.com/gdsfactory/gdsfactory/pull/1348)
- use simple image when rendering docs [PR](https://github.com/gdsfactory/gdsfactory/pull/1348)
- Distributed model building / corner analysis [PR](https://github.com/gdsfactory/gdsfactory/pull/1343)

- Add layer selector widget to notebook view [PR](https://github.com/gdsfactory/gdsfactory/pull/1312)
- Sweep Fabrication [PR](https://github.com/gdsfactory/gdsfactory/pull/1309)
- Adding mode converter [PR](https://github.com/gdsfactory/gdsfactory/pull/1325)
- Add cascaded MZI filter example [PR](https://github.com/gdsfactory/gdsfactory/pull/1323)
- Derived layers work for more than one etched layer [PR](https://github.com/gdsfactory/gdsfactory/pull/1318)
- switch notebooks to [jupytext](https://marketplace.visualstudio.com/items?itemName=donjayamanne.vscode-jupytext) [PR](https://github.com/gdsfactory/gdsfactory/pull/1335)
- add mode converter [PR](https://github.com/gdsfactory/gdsfactory/pull/1325)
- add length to spiral heater [PR](https://github.com/gdsfactory/gdsfactory/pull/1334)
- Fix port in grating simulation to avoid substrate overlap [PR](https://github.com/gdsfactory/gdsfactory/pull/1329)

[6.43.0](https://github.com/gdsfactory/gdsfactory/pull/1297)

- if no active PDK logger outputs warning, and activates generic PDK. In the future we won't activate the generic pdk by default.
- dither_pattern and hatch_pattern can be None
- Replace _ACTIVE_PDK with `gf.get_active_pdk()` as underscored variables are not supposed to be read or modified directly.
- Add coupler_straight_asymmetric [PR](https://github.com/gdsfactory/gdsfactory/pull/1299)
- fix devsim plugin and add a test [PR](https://github.com/gdsfactory/gdsfactory/pull/1304) [PR](https://github.com/gdsfactory/gdsfactory/pull/1303)
- add `Component.get_ports_pandas()` [PR](https://github.com/gdsfactory/gdsfactory/pull/1308) [PR](https://github.com/gdsfactory/gdsfactory/pull/1307/)

- don't expose generic LAYER_VIEWS [PR](https://github.com/gdsfactory/gdsfactory/pull/1295)

- Improve decorator docs [PR](https://github.com/gdsfactory/gdsfactory/pull/1287)
- Neural net interpolation & MEEP corner iterator [PR](https://github.com/gdsfactory/gdsfactory/pull/1285)
- add `mmi1x2_with_sbend` and `mmi2x2_with_sbend` [PR](https://github.com/gdsfactory/gdsfactory/pull/1283), [PR](https://github.com/gdsfactory/gdsfactory/pull/1286) and [PR](https://github.com/gdsfactory/gdsfactory/pull/1288)

[6.40.0](https://github.com/gdsfactory/gdsfactory/pull/1281)

- fix devsim plugin
- run meshing notebooks
- add variability analysis [PR](https://github.com/gdsfactory/gdsfactory/pull/1280)

- update tidy3d from 1.8.3 to 1.8.4
- Add database simulation example notebook [PR](https://github.com/gdsfactory/gdsfactory/pull/1217)
- Add jinja based YAML circuits [PR](https://github.com/gdsfactory/gdsfactory/pull/1275)
- [PR](https://github.com/gdsfactory/gdsfactory/pull/1277)
- add `Pdk.bend_points_distance` parameter for bends
- add database to docs
- make sure euler and arc have always enough points, as suggested by Orion in https://github.com/gdsfactory/gdsfactory/issues/1090


[6.37.0](https://github.com/gdsfactory/gdsfactory/pull/1264)

- better port names for grating couplers, include `opt_te_wavelength_fiberAngle`
- remove grating coupler markers
- remove `Component.unlock()` in some functions that add labels. Cached components should never be modified.
- `add_fiber_single` and `add_fiber_array` don't add labels by default

- add tests and better docs for get_bundle_all_angle [PR](https://github.com/gdsfactory/gdsfactory/pull/1257)
- Fix flatten refs recursive [PR](https://github.com/gdsfactory/gdsfactory/pull/1258)

[6.35.1](https://github.com/gdsfactory/gdsfactory/pull/1254)

- use constants in pdk
- default max points to 4e3