bump version to 1.16.3

Author: Marc-André Rivet

CHANGELOG.md

@@ -2,7 +2,7 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
-## Unreleased
+## [1.16.3] - 2020-10-07
 ### Fixed
 - [#1426](https://github.com/plotly/dash/pull/1426) Fix a regression caused by `flask-compress==1.6.0` causing performance degradation on server requests
 

dash/version.py

@@ -1 +1 @@
-__version__ = "1.16.2"
+__version__ = "1.16.3"