diff --git a/CHANGELOG.md b/CHANGELOG.md
index 958be0b9cf2..df9e68acb0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,57 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## [3.9.0] - 2019-04-19
+
+### Updated
+ - Updated Plotly.js to version 1.47.4. See the
+ [plotly.js CHANGELOG](https://github.com/plotly/plotly.js/blob/master/CHANGELOG.md#1474----2019-04-25)
+ for more information.
+
+
+### Added
+ - Added "magic underscore" support for specifying nested figure properties
+ ([#1534](https://github.com/plotly/plotly.py/pull/1534))
+ - Added `select_traces`, `for_each_trace`, and `update_traces` figure
+ methods for accessing and updating traces by subplot location and trace
+ properties
+ ([#1534](https://github.com/plotly/plotly.py/pull/1534))
+ - Added `select_*`, `for_each_*`, and `update_*` figure methods for
+ accessing and updating subplot objects (`xaxis`, `scene`, `polar`, etc)
+ ([#1548](https://github.com/plotly/plotly.py/pull/1548))
+ - Added support for Dash Design Kit style color specifications
+ ([#1541](https://github.com/plotly/plotly.py/pull/1541)). Thanks to
+ [@wbrgss](https://github.com/wbrgss) for this contribution!
+ - Added support for the `plotly_unselect` plotly.js event in a new
+ `on_unselect` trace method
+ ([#1542](https://github.com/plotly/plotly.py/pull/1542)). Thanks to
+ [@denphi](https://github.com/denphi) for this contribution!
+ 
+### Changed
+ - Changed the default colorscale to be `plasma` for the `plotly`, `plotly_white`, and
+ `plotly_dark` templates for plotly.py version 4
+ ([#1274](https://github.com/plotly/plotly.py/issues/1274),
+ [#1549](https://github.com/plotly/plotly.py/pull/1549))
+ - Reordered the default colorway for the `plotly`, `plotly_white`, and
+ `plotly_dark` templates for plotly.py version 4
+ ([#1549](https://github.com/plotly/plotly.py/pull/1549)) 
+
+### Fixed
+ - Fixed package listing in setup.py
+ ([#1543](https://github.com/plotly/plotly.py/pull/1543)).  Thanks to
+ [@jakevdp](https://github.com/jakevdp) for this contribution!
+ - Fixed built-in templates so that `heatmap` colorscales can be overridden
+ without specifying `autocolorscale=False`
+ ([#1454](https://github.com/plotly/plotly.py/issues/1454),
+ [#1549](https://github.com/plotly/plotly.py/pull/1549))
+ - Fix `UnboundLocalError` error in the presence of a missing or corrupt
+ `~/.plotly/.config` file
+ ([#1551](https://github.com/plotly/plotly.py/pull/1551))
+ - Fixed error when combining `sankey` traces with cartesian subplots
+ ([#1527](https://github.com/plotly/plotly.py/issues/1527),
+ [plotly/plotly.js#3802](https://github.com/plotly/plotly.js/pull/3802)) 
+ 
+ 
 ## [3.8.1] - 2019-04-19
 
 ### Updated
diff --git a/README.md b/README.md
index cf64de35468..fdea70b9f30 100644
--- a/README.md
+++ b/README.md
@@ -78,12 +78,12 @@ Built on top of [plotly.js](https://github.com/plotly/plotly.js), `plotly.py` is
 
 plotly.py may be installed using pip...
 ```
-pip install plotly==3.8.1
+pip install plotly==3.9.0
 ```
 
 or conda.
 ```
-conda install -c plotly plotly=3.8.1
+conda install -c plotly plotly=3.9.0
 ```
 
 ### Jupyter Notebook Support
@@ -126,7 +126,7 @@ set NODE_OPTIONS=--max-old-space-size=4096
 jupyter labextension install @jupyter-widgets/jupyterlab-manager@0.38 --no-build
 
 # FigureWidget support
-jupyter labextension install plotlywidget@0.9.1 --no-build
+jupyter labextension install plotlywidget@0.10.0 --no-build
 
 # offline iplot support
 jupyter labextension install @jupyterlab/plotly-extension@0.18.2 --no-build
diff --git a/js/package-lock.json b/js/package-lock.json
index 0b7117c7901..d8490be98f6 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "plotlywidget",
-  "version": "0.9.1",
+  "version": "0.10.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/js/package.json b/js/package.json
index b2ecac13aee..c5030fe0173 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "plotlywidget",
-  "version": "0.9.1",
+  "version": "0.10.0",
   "description": "The plotly.py ipywidgets library",
   "author": "The plotly.py team",
   "license": "MIT",
diff --git a/plotly/_widget_version.py b/plotly/_widget_version.py
index bf8ed003270..f2b3a9e1942 100644
--- a/plotly/_widget_version.py
+++ b/plotly/_widget_version.py
@@ -2,4 +2,4 @@
 # for automated dev builds
 #
 # It is edited by hand prior to official releases
-__frontend_version__ = '0.9.1'
+__frontend_version__ = '^0.10.0'
diff --git a/plotlywidget/static/index.js b/plotlywidget/static/index.js
index 00c5bcfc0a2..49b84189cab 100644
--- a/plotlywidget/static/index.js
+++ b/plotlywidget/static/index.js
@@ -12642,7 +12642,7 @@ module.exports = function identity(d) { return d; };
 /* 19 */
 /***/ (function(module, exports) {
 
-module.exports = {"name":"plotlywidget","version":"0.9.1","description":"The plotly.py ipywidgets library","author":"The plotly.py team","license":"MIT","main":"src/index.js","repository":{"type":"git","url":"https://github.com/plotly/plotly.py"},"keywords":["jupyter","widgets","ipython","ipywidgets","plotly"],"files":["src/**/*.js","dist/*.js"],"scripts":{"clean":"rimraf dist/ && rimraf ../plotlywidget/static","prepublish":"webpack","test":"echo \"Error: no test specified\" && exit 1"},"devDependencies":{"webpack":"^3.10.0","rimraf":"^2.6.1","ify-loader":"^1.1.0"},"dependencies":{"plotly.js":"1.47.4","@jupyter-widgets/base":"^1.0.0","lodash":"^4.17.4"},"jupyterlab":{"extension":"src/jupyterlab-plugin"}}
+module.exports = {"name":"plotlywidget","version":"0.10.0","description":"The plotly.py ipywidgets library","author":"The plotly.py team","license":"MIT","main":"src/index.js","repository":{"type":"git","url":"https://github.com/plotly/plotly.py"},"keywords":["jupyter","widgets","ipython","ipywidgets","plotly"],"files":["src/**/*.js","dist/*.js"],"scripts":{"clean":"rimraf dist/ && rimraf ../plotlywidget/static","prepublish":"webpack","test":"echo \"Error: no test specified\" && exit 1"},"devDependencies":{"webpack":"^3.10.0","rimraf":"^2.6.1","ify-loader":"^1.1.0"},"dependencies":{"plotly.js":"1.47.4","@jupyter-widgets/base":"^1.0.0","lodash":"^4.17.4"},"jupyterlab":{"extension":"src/jupyterlab-plugin"}}
 
 /***/ }),
 /* 20 */