diff --git a/.travis.yml b/.travis.yml
index eaff4d5..4febb76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,10 +23,10 @@ install:
 - spago install
 
 script:
-- spago build
-- spago test
-- spago docs
 - npm run build
+- npm test
+# Check if it the app is able to build the search index for itself.
+- spago docs
 - ./dist/purescript-docs-search build-index
 
 deploy:
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..9af155e
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.0.4] - 2019-07-25
+
+New features:
+- Reduce the package size by using a minifier.
+- Add `version` command to print the app version.
+- **S** hotkey now `.select()`s everything in the search field, insetead of just `.focus()`ing (#11).
+
+## [0.0.3] - 2019-07-23
+
+Bugfixes:
+- Fix stack safety issue (#8).
+
+## [0.0.2] - 2019-07-21
+
+## [0.0.1] - 2019-07-20
diff --git a/package.json b/package.json
index 89f1c9b..ebf2061 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,7 @@
 {
   "name": "purescript-docs-search",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "description": "Search frontend for the documentation generated by the PureScript compiler.",
-  "main": "dist/main.js",
   "directories": {
     "test": "test"
   },
@@ -10,9 +9,10 @@
     "purescript-docs-search": "dist/purescript-docs-search"
   },
   "files": [
-    "dist/main.js",
+    "dist/purescript-docs-search",
     "dist/docs-search-app.js",
-    "README.md"
+    "README.md",
+    "CHANGELOG.md"
   ],
   "scripts": {
     "test": "spago test",
@@ -25,7 +25,9 @@
     "chmod-main": "chmod +x dist/purescript-docs-search",
     "build-main": "npm run bundle-main && npm run parcel-main && npm run add-shebang && rm dist/main.js && npm run chmod-main",
     "build": "npm run build-app && npm run build-main",
-    "clean": "rm -rf dist"
+    "clean": "rm -rf dist",
+    "check-version": "[ \"$(./dist/purescript-docs-search version)\" = \"$npm_package_version\" ]",
+    "test": "spago test && npm run check-version"
   },
   "repository": {
     "type": "git",
diff --git a/src/Docs/Search/Main.purs b/src/Docs/Search/Main.purs
index abe61be..6204589 100644
--- a/src/Docs/Search/Main.purs
+++ b/src/Docs/Search/Main.purs
@@ -12,6 +12,7 @@ import Data.List.NonEmpty as NonEmpty
 import Data.Maybe (Maybe, fromMaybe, optional)
 import Data.Unfoldable (class Unfoldable)
 import Effect (Effect)
+import Effect.Console (log)
 import Options.Applicative (Parser, command, execParser, fullDesc, helper, info, long, metavar, progDesc, strOption, subparser, value, (<**>))
 import Options.Applicative as CA
 
@@ -24,6 +25,7 @@ main = do
   case fromMaybe defaultCommands args of
     BuildIndex cfg -> IndexBuilder.run cfg
     Search cfg -> Interactive.run cfg
+    Version -> log "0.0.4"
 
 getArgs :: Effect (Maybe Commands)
 getArgs = execParser opts
@@ -39,6 +41,7 @@ data Commands
                , generatedDocs :: String
                }
   | Search { docsFiles :: Array String }
+  | Version
 
 derive instance genericCommands :: Generic Commands _
 
@@ -57,6 +60,11 @@ commands = optional $ subparser
       ( progDesc "Run the search engine."
       )
     )
+ <> command "version"
+    ( info (pure Version)
+      ( progDesc "Show purescript-docs-search version."
+      )
+    )
   )
 
 buildIndex :: Parser Commands