prep for release

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [v0.1.9]
 - added server options for building contexts
 - added ErrorLog server option
 - added ConnState server option
@@ -54,7 +56,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## v0.1.0
 - Initial creation
 
-[Unreleased]: https:/xmidt-org/arrange/compare/v0.1.8..HEAD
+[Unreleased]: https:/xmidt-org/arrange/compare/v0.1.9..HEAD
+[v0.1.9]: https:/xmidt-org/arrange/compare/v0.1.8...v0.1.9
 [v0.1.8]: https:/xmidt-org/arrange/compare/v0.1.7...v0.1.8
 [v0.1.7]: https:/xmidt-org/arrange/compare/v0.1.6...v0.1.7
 [v0.1.6]: https:/xmidt-org/arrange/compare/v0.1.5...v0.1.6