[prerelease] bump version 1.18.0 (#1483)

Author: harryturr

CHANGELOG.md

@@ -2,6 +2,8 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
+## [1.18.0] - 2020-12-07
+
 ## [1.17.0] - 2020-10-29
 ### Changed
 - [#1442](https://github.com/plotly/dash/pull/1442) Update from React 16.13.0 to 16.14.0

dash/version.py

@@ -1 +1 @@
-__version__ = "1.17.0"
+__version__ = "1.18.0"

requires-install.txt

@@ -2,7 +2,7 @@ Flask>=1.0.2
 flask-compress
 plotly
 dash_renderer==1.8.3
-dash-core-components==1.13.0
+dash-core-components>=1.13.0
 dash-html-components==1.1.1
-dash-table==4.11.0
+dash-table>=4.11.0
 future