Prepare for 0.12.0 release (#66)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54e2b52..3f8f7ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,18 @@
 
 # Changelog
 
+## v0.12.0
+* Running sequential compositions no longer requires the action runtime to
+  contain the `redis` and `uuid` modules.
+* The `deploy` command supports additional options:
+  * `--logsize` and `--memory` to set limits for the conductor action,
+  * `--basic` and `--bearer` to control the authentication method,
+  * `--apiversion` to specify the API version of the target OpenWhisk instance.
+* The `deploy` method supports passing through `httpOptions`.
+* A workaround for Webpack has been implemented (dependency analysis of the
+  conductor code).
+* The `openwhisk-client-js` module has been updated to version `3.20.0`.
+* The documentation has been improved.
 
 ## v0.11.0
 * Annotate conductor actions with the `provide-api-key` annotation.
diff --git a/NOTICE.txt b/NOTICE.txt
index 8cd1584..5a42896 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Apache OpenWhisk Composer
-Copyright 2016-2019 The Apache Software Foundation
+Copyright 2016-2020 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
diff --git a/package.json b/package.json
index 4affc82..778ffc0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "license": "Apache-2.0",
   "name": "openwhisk-composer",
-  "version": "0.11.0",
+  "version": "0.12.0",
   "description": "Composer is a new programming model for composing cloud functions built on Apache OpenWhisk.",
   "homepage": "https://github.com/apache/openwhisk-composer",
   "main": "composer.js",