diff --git a/RELEASE.rdoc b/RELEASE.rdoc
index 9125a6e00..f1d702b5e 100644
--- a/RELEASE.rdoc
+++ b/RELEASE.rdoc
@@ -1,3 +1,11 @@
+= 0.12.0
+* Fail fast if neither Test::Unit nor MiniTest is loaded. Fixes #40.
+* Officially support MiniTest up to v3.2.0 (still monkey-patching).
+* Officially support test-unit v2.5.0 (still monkey-patching).
+* Do not monkey-patch Test::Unit or MiniTest unless we *know* it's ok.
+* Add acceptance tests to demonstrate using a block as a custom parameter matcher.
+* Update Travis CI build status image to use the new build under the freerange account.
+
 = 0.11.4
 * Homepage has moved to http://gofreerange.com/mocha/docs.
 
diff --git a/lib/mocha/version.rb b/lib/mocha/version.rb
index 683bf9f1b..fbff48c76 100644
--- a/lib/mocha/version.rb
+++ b/lib/mocha/version.rb
@@ -1,3 +1,3 @@
 module Mocha
-  VERSION = "0.11.4"
+  VERSION = "0.12.0"
 end