Merge pull request #1911 from plotly/plotly.js-2.9.0

bump `plotly.js-dist-min` v2.9.0

Author: alexcjohnson

Diff for: CHANGELOG.md

@@ -4,13 +4,18 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
-### Added 
+### Added
 - [#1923](https://github.com/plotly/dash/pull/1923):
-- `dash.get_relative_path`
-- `dash.strip_relative_path`
-- `dash.get_asset_url`
-This is similar to `dash.callback` where you don't need the `app` object. It makes it possible to use these
-functions in the `pages` folder of a multi-page app without running into the circular `app` imports issue.
+  - `dash.get_relative_path`
+  - `dash.strip_relative_path`
+  - `dash.get_asset_url`
+  This is similar to `dash.callback` where you don't need the `app` object. It makes it possible to use these
+  functions in the `pages` folder of a multi-page app without running into the circular `app` imports issue.
+
+### Updated
+- [#1911](https://github.com/plotly/dash/pull/1911) Upgrade Plotly.js to v2.9.0 (from v2.8.3).
+  - Adds `ticklabelstep` to axes to reduce tick labels while still showing all ticks.
+  - Displays the plotly.js version when hovering on the modebar. This helps debugging situations where there might be multiple sources of plotly.js, for example `/assets` vs the versions built into `dcc` or `ddk`.
 
 ## [2.1.0] - 2022-01-22
 

Diff for: components/dash-core-components/package-lock.json

@@ -48,7 +48,7 @@
     "highlight.js": "^11.3.1",
     "moment": "^2.29.1",
     "node-polyfill-webpack-plugin": "^1.1.4",
-    "plotly.js-dist-min": "2.8.3",
+    "plotly.js-dist-min": "2.9.0",
     "prop-types": "^15.7.2",
     "ramda": "^0.27.1",
     "rc-slider": "^9.7.5",