diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26b3381..13aec4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+# 2.3.0
+
+- Implement compare option.
+
 # 2.2.1
 
 - Output details for duplicates.
diff --git a/README.md b/README.md
index 4b4d09d..1315df2 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,10 @@ Extract common settings from node-specific settings.
 
 A common setting is one with a value that is not unique to a specific node.
 
+##### `--compare`
+
+Output comparison of currently defined and optimized settings, and exit.
+
 ##### `--current`
 
 Output currently defined settings, in JSON format, and exit.
diff --git a/metadata.json b/metadata.json
index 4f97b90..6199b5e 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "tkishel-pe_tune",
-  "version": "2.2.1",
+  "version": "2.3.0",
   "author": "Thomas Kishel",
   "summary": "Inspect infrastructure and suggest tuned settings for services.",
   "license": "Apache-2.0",