diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c1d8e1..5ff032a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 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).
 
+## [2.2.0] - 2019-11-04
+
+### Changed
+- Make `$zk_chroot` optional to support a ZooKeeper ensemble without a chroot (#2)
+- Change default of `$zk_chroot` from `solrcloud` to `undef` (#2)
+
 ## [2.1.0] - 2019-10-24
 
 ### Changed
diff --git a/README.md b/README.md
index c76c4ed..cf7d312 100644
--- a/README.md
+++ b/README.md
@@ -166,7 +166,7 @@ your configuration in order to actually load the custom plugins in your Solr Cor
 * `upgrade`: A flag to indicate if Solr should be automatically upgraded to a new version (see `$version`). Valid options: a boolean. Defaults to: `false`.
 * `var_dir`: Specifies the base directory for Solr configuration, data and logs. Valid options: an absolute path. Defaults to: `/var/solr`.
 * `version`: Specifies the version of Solr that should be installed or the target version for an upgrade (see `$upgrade`). Valid options: a string: Defaults to: `8.2.0`.
-* `zk_chroot`: Specifies the ZooKeeper chroot path when using Solr Cloud (see `$cloud`). Valid options: a string. Defaults to: `solrcloud`.
+* `zk_chroot`: Specifies the ZooKeeper chroot path when using Solr Cloud (see `$cloud`). Valid options: a string. Defaults to: `undef`. Optional.
 * `zk_ensemble`: Specifies the host:port information for every machine that is part of the ZooKeeper ensemble when using Solr Cloud (see `$cloud`). Valid options: a string. Optional.
 * `zk_timeout`: Specifies the timeout (in milliseconds) for connections to machines in the ZooKeeper ensemble. Valid options: an integer. Defaults to: `15000`.
 
diff --git a/metadata.json b/metadata.json
index 436dc2f..43858f5 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "fraenki-solr",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "author": "Frank Wall",
   "summary": "Installs and configures the Solr search platform",
   "license": "Apache-2.0",