Plotly

Updated
- Updated Plotly.js to from version 2.17.1 to version 2.18.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2180----2023-01-19) for more information. Notable changes include:
- Add `sync` tickmode option [[6356](https://github.com/plotly/plotly.js/pull/6356), [#6443](https://github.com/plotly/plotly.js/pull/6443)], with thanks to filipesantiagoAM and VictorBezak for the contribution!
- Build process now uses Node 18.x and version 2 lockfile (should be an invisible change for users) [[4034](https://github.com/plotly/plotly.py/pull/4034)]

Fixed
- `write_html()` now explicitly encodes output as UTF-8 because Plotly.js' bundle contains such characters [[4021](https://github.com/plotly/plotly.py/pull/4021)] and [[#4022](https://github.com/plotly/plotly.py/pull/4022)]
- fixed `iframe` renderer regression from 5.12 and also fixed error when this renderer was used in the very first cell in a notebook [[4036](https://github.com/plotly/plotly.py/pull/4036)]

Updated
- Support for ipywidgets 8 [[3930](https://github.com/plotly/plotly.py/pull/3930)]
- Updated Plotly.js to from version 2.16.1 to version 2.17.1. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2170----2022-12-22) for more information. Notable changes include:
- Add `shift` and `autoshift` to cartesian y axes to help avoid overlapping of multiple axes [[6334](https://github.com/plotly/plotly.js/pull/6334)],
with thanks to [Gamma Technologies](https://www.gtisoft.com) for sponsoring the related development!
- Introduce group attributes for `scatter` trace i.e. `alignmentgroup`, `offsetgroup`, `scattermode` and `scattergap` [[6381](https://github.com/plotly/plotly.js/pull/6381)],
this feature was anonymously sponsored: thank you to our sponsor!
- Add `marker.cornerradius` attribute to `treemap` trace [[6351](https://github.com/plotly/plotly.js/pull/6351)]
Fixed
- Fixed the usage of some deprecated NumPy types which were removed in NumPy 1.24 [[3997](https://github.com/plotly/plotly.py/pull/3997)]
- Fixed bug for trendlines with datetime axes [[3683](https://github.com/plotly/plotly.py/issues/3683)]
- `marker.angle` attribute now accepts iterables where appropriate [[4013](https://github.com/plotly/plotly.py/issues/4013)]
- `selector=0` now correctly returns the first trace in `.select_traces()` and related methods [[3817](https://github.com/plotly/plotly.py/issues/3817)]

Updated
- Updated Plotly.js to from version 2.14.0 to version 2.16.1. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2161----2022-10-21) for more information. Notable changes include:
- Add clustering options to `scattermapbox` [[5827](https://github.com/plotly/plotly.js/pull/5827)],
with thanks to elben10 for the contribution!
- Add bounds to mapbox suplots [[6339](https://github.com/plotly/plotly.js/pull/6339)]
- Add `angle`, `angleref` and `standoff` to `marker` and add `backoff` to `line`; also introduce new arrow symbols to facilitate drawing networks [[6297](https://github.com/plotly/plotly.js/pull/6297)]
- Add `minreducedwidth` and `minreducedheight` to layout for increasing control over automargin [[6307](https://github.com/plotly/plotly.js/pull/6307)]
- Add `entrywidth` and `entrywidthmode` to legend [[6202](https://github.com/plotly/plotly.js/pull/6202), [#6324](https://github.com/plotly/plotly.js/pull/6324)]

Updated
- Updated Plotly.js to from version 2.12.1 to version 2.14.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#2140----2022-08-10) for more information. Notable changes include:
- Add support for `sankey` links with arrows
- Add `selections`, `newselection` and `activeselection` layout attributes to have persistent and editable selections over cartesian subplots
- Add `unselected.line.color` and `unselected.line.opacity` options to `parcoords` trace
- Display Plotly's new logo in the modebar

Added

- `pattern_shape` options now available in `px.timeline()` [3774](https://github.com/plotly/plotly.py/pull/3774)
- `facet_*` and `category_orders` now available in `px.pie()` [3775](https://github.com/plotly/plotly.py/pull/3775)

Performance

- `px` methods no longer call `groupby` on the input dataframe when the result would be a single group, and no longer groups by a lambda, for significant speedups [3765](https://github.com/plotly/plotly.py/pull/3765) with thanks to [jvdd](https://github.com/jvdd)

Updated

- Allow non-string extras in `flaglist` attributes, to support upcoming changes to `ax.automargin` in plotly.js [plotly.js6193](https://github.com/plotly/plotly.js/pull/6193), [#3749](https://github.com/plotly/plotly.py/pull/3749)

Fixed

- Fixed a syntax error that caused rendering issues in Databricks notebooks and likely elsewhere. [3763](https://github.com/plotly/plotly.py/pull/3763) with thanks to [fwetdb](https://github.com/fwetdb)