Update changelog for 5.17.2 (#3570)

Signed-off-by: Simon Plourde <[email protected]>

Author: Simon Plourde

CHANGELOG.md

@@ -7,8 +7,9 @@ Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
 
+## [5.17.2] - 2020-02-19
+
 ### Fixed
-- Support Bonsai assets versions prefixed with the letter `v`.
 - Fixed a bug where on an internal restart, enterprise HTTP routes could fail
 to intialize.