diff --git a/CHANGELOG.md b/CHANGELOG.md
index f94dbcc..11e011f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,46 @@
 # Invitation Changelog
 
+
+## [0.4.2] - July 1, 2017
+
+### API change
+- accept a string for configuration.user_model and constantize it
+ 
+[0.4.2]: https://github.com/tomichj/invitation/compare/0.4.1...0.4.2
+
+
+
+## [0.4.1] - April 26, 2017
+
+### Bugfix:
+- added case_insensitive_email to template used by install generator
+ 
+[0.4.1]: https://github.com/tomichj/invitation/compare/0.4...0.4.1
+
+
+
+## [0.4] - April 26, 2017
+
+### Feature:
+- added case_sensitive_email configuration option.
+
+[0.4]: https://github.com/tomichj/invitation/compare/0.3...0.4
+
+
+
+## [0.3] - March 26, 2017
+
+### Feature:
+- Added support for Rails 5.1
+
+[0.3]: https://github.com/tomichj/invitation/compare/0.2...0.3
+
+
+
 ## [0.2] - October 17, 2016
 
-Contribution from [augustocbx](https://github.com/augustocbx) adding pt-BR locale file and fixing an init bug.
+### Feature:
+- adding pt-BR locale file and fixing an init bug.
 
 [0.2]: https://github.com/tomichj/invitation/compare/0.1.1...0.2
 
@@ -10,8 +48,8 @@ Contribution from [augustocbx](https://github.com/augustocbx) adding pt-BR local
 
 ## [0.1.1] - April 21, 2016
 
-External APIs and usage remains the same, internal changes only:
-* invites controller now users a Form object, form accepts :email or :emails, builds one invite per email address.
+### Internal changes:
+- invites controller now users a Form object, form accepts :email or :emails, builds one invite per email address.
 
 [0.1.1]: https://github.com/tomichj/invitation/compare/0.1.0...0.1.1
 
diff --git a/README.md b/README.md
index e4d2f70..419aa45 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,17 @@ Please use [GitHub Issues] to report bugs. You can contact me directly on twitte
 [![Gem Version](https://badge.fury.io/rb/invitation.svg)](https://badge.fury.io/rb/invitation) ![Build status](https://travis-ci.org/tomichj/invitation.svg?branch=master) ![Code Climate](https://codeclimate.com/github/tomichj/invitation/badges/gpa.svg)
 
 
+### Warning - 0.4.2 api change
+
+Release 0.4.2 includes an API change in configuration, config.user_model is now set to a string. Example:
+
+```ruby
+Invitation.configuration do |config|
+    config.user_model = 'Profile'
+end
+```
+
+
 ## Overview
 
 Allow users to invite others to join an organization or resource. Plenty of gems can issue a 'system-wide' invitation,
@@ -352,6 +363,7 @@ Many thanks to:
 * [augustocbx](https://github.com/augustocbx) added pt-BR locale file and fixed an init bug
 * [vincentwoo](https://github.com/vincentwoo/) raising the security bar, & bumping Invitation to rails 5.1
 * [conarro](https://github.com/conarro) added case_sensitive_email configuration option
+* [itkin](https://github.com/itkin) bugfix, stringified configuration.user_model 
 
 ## Future changes
 
diff --git a/lib/invitation/version.rb b/lib/invitation/version.rb
index 83c76ed..5996bad 100644
--- a/lib/invitation/version.rb
+++ b/lib/invitation/version.rb
@@ -1,3 +1,3 @@
 module Invitation
-  VERSION = '0.4.1'.freeze
+  VERSION = '0.4.2'.freeze
 end