Update version to 0.4.0

Author: samuelkarp

CHANGELOG.md

@@ -1,3 +1,15 @@
+# 0.4.0
+
+* Feature - Added support for chaining assumed roles in the shared config file
+  (`~/.aws/config`) defined by `source_profile` and `credential_source`
+  ([#177](https://github.com/awslabs/amazon-ecr-credential-helper/pull/177))
+* Feature - Added support for Web Identities and [IAM Roles for Service
+  Accounts (IRSA)](https://docs.aws.amazon.com/eks/latest/userguide/iam-roles-for-service-accounts.html)
+  with Kubernetes
+  ([#183](https://github.com/awslabs/amazon-ecr-credential-helper/pull/183)) 
+* Bug - Fixed the `make docker` target when the credential helper git repository is used as a git submodule
+  ([#184](https://github.com/awslabs/amazon-ecr-credential-helper/issues/184))
+
 # 0.3.1
 
 * Bug - Log directory is now automatically created when the helper runs

VERSION

@@ -1 +1 @@
-0.3.1
+0.4.0