Merge branch 'master' into master

Author: janosh

Diff for: .github/ISSUE_TEMPLATE.md

@@ -1,9 +1,7 @@
-Thanks for your interest in plotly.py!!
+Thanks for your interest in Plotly.py!
 
-Before opening an issue, please search for existing and closed issues. If your problem or idea is not addressed yet, [please open a new issue](https://github.com/plotly/plotly.py/issues/new).
+Before opening an issue, please search for existing and closed issues :)
 
-Bug reports **must** be accompanied with a reproducible example. Please use the [latest version](https://github.com/plotly/plotly.py/blob/master/CHANGELOG.md) of plotly.py in your report unless not applicable and specify if you're plotting [online](https://plot.ly/python/getting-started/#initialization-for-online-plotting) or [offline](https://plot.ly/python/getting-started/#initialization-for-offline-plotting).
+**Please** accompany bug reports with a reproducible example. Please use the [latest version](https://github.com/plotly/plotly.py/blob/master/CHANGELOG.md) of plotly.py in your report unless not applicable.
 
-Note that GitHub issues are reserved for bug reports and feature requests only. Implementation questions should be asked on community.plot.ly (tagged [`python`](https://community.plot.ly/c/api/python)) or on Stack Overflow (tagged [`plotly`](https://stackoverflow.com/questions/tagged/plotly)).
-
-Comments on GitHub issues or pull requests should add content to the discussions. Approbation comments such as *+1* or *I would like this feature to be implemented as well* will be deleted by the maintainers. Please use [GitHub reactions](https://github.com/blog/2119-add-reactions-to-pull-requests-issues-and-comments) instead.
+Note that GitHub Issues are meant to be used for bug reports and feature requests only. Implementation or usage questions should be asked on [community.plotly.com](https://community.plotly.com/c/graphing-libraries/python/10) or on Stack Overflow (tagged [`plotly`](https://stackoverflow.com/questions/tagged/plotly)).

Diff for: CHANGELOG.md

@@ -2,9 +2,17 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## UNRELEASED
+
 ### Fixed
   - Fixed ValueError when `ff.create_annotated_heatmap` passes `rgba()` colors into `to_rgb_color_list` [#3478](https://github.com/plotly/plotly.py/issues/3478)
 
+### Updated
+  - Updated Plotly.js to from version 2.6.3 to version 2.8.0. See the [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#280----2021-12-10) for more information. Notable changes include:
+    - Horizontal color bars
+    - texttemplate for histogram-like traces
+    - text for heatmap-like traces
+
 ## [5.4.0] - 2021-11-15
 
 ### Fixed

Diff for: doc/README.md

@@ -65,7 +65,11 @@ Checklist
 
 ### Build process
 
-Run `make` to build html pages for the tutorials. This uses `jupytext` to
+This build process requries a free personal public mapbox token to work.
+
+First, create an account at https://account.mapbox.com/auth/signup Once that is done, navigate to https://account.mapbox.com/ and copy your "Default public token" to the file `doc/python/.mapbox_token`
+
+Next, run `make` to build html pages for the tutorials. This uses `jupytext` to
 execute the notebooks and `nbconvert` to convert notebook files to static html
 pages. Note that the CI will build the doc, so you don't have to build it
 yourself, it is enough to check that the markdown file runs correctly in

Diff for: packages/javascript/jupyterlab-plotly/package-lock.json

@@ -65,7 +65,7 @@
     "@lumino/messaging": "^1.2.3",
     "@lumino/widgets": "^1.8.1",
     "lodash": "^4.17.4",
-    "plotly.js": "^2.6.3"
+    "plotly.js": "^2.8.0"
   },
   "jupyterlab": {
     "extension": "lib/jupyterlab-plugin",