prep for 2.3.1 release

Author: majormoses

CHANGELOG.md

@@ -4,7 +4,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 This CHANGELOG follows the format listed [here](https://github.com/sensu-plugins/community/blob/master/HOW_WE_CHANGELOG.md).
 
 ## [Unreleased]
-- metric-postgres-statsdb.rb: Change append to push to maintain compatibility w/ non-EOL Rubies
+
+## [2.3.1] - 2018-12-16
+### Fixed
+- metric-postgres-statsdb.rb: Change `Array` method from `append` to `push` to maintain compatibility w/ non-EOL Rubies (@phumpal)
 
 ## [2.3.0] - 2018-12-08
 ### Added
@@ -171,7 +174,8 @@ This CHANGELOG follows the format listed [here](https://github.com/sensu-plugins
 ### Added
 - initial release
 
-[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.3.0...HEAD
+[Unreleased]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.3.1...HEAD
+[2.3.1]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.3.0...2.3.1
 [2.3.0]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.2.2...2.3.0
 [2.2.2]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.2.1...2.2.2
 [2.2.1]: https://github.com/sensu-plugins/sensu-plugins-postgres/compare/2.2.0...2.2.1

lib/sensu-plugins-postgres/version.rb

@@ -2,7 +2,7 @@ module SensuPluginsPostgres
   module Version
     MAJOR = 2
     MINOR = 3
-    PATCH = 0
+    PATCH = 1
 
     VER_STRING = [MAJOR, MINOR, PATCH].compact.join('.')
   end