diff --git a/README.md b/README.md
index 406f3194..e153ffd1 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,7 @@
-# middleman
+Middleman [![Build Status](http://travis-ci.org/tdreyno/middleman.png)](http://travis-ci.org/tdreyno/middleman)
+=========
 
-The Middleman is ever-vigilant against tag-soup, unreadable CSS and repetition. He stands-watch over your Haml, Sass, and CoffeeScript producing only the cleanest and most efficient markup.
-
-[![Build Status](http://travis-ci.org/tdreyno/middleman.png)](http://travis-ci.org/tdreyno/middleman)
+Middleman is ever-vigilant against tag-soup, unreadable CSS and repetition. He stands-watch over your Haml, Sass, and CoffeeScript producing only the cleanest and most efficient markup.
 
 [![Click here to lend your support to Middleman](http://www.pledgie.com/campaigns/15807.png)](http://www.pledgie.com/campaigns/15807)
 
diff --git a/middleman.gemspec b/middleman.gemspec
index eadc93dd..697360a5 100644
--- a/middleman.gemspec
+++ b/middleman.gemspec
@@ -16,6 +16,23 @@ Gem::Specification.new do |s|
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 
+  # TODO remove for 2.1.x
+  gem.post_install_message =<<eos
+******************************************************************************
+
+  Welcome to Middleman 2.0
+  
+  In addition to many new features, some backwards-incompatible
+  changes have been made to the structure of Middleman sites.
+  
+  Before running you old, v1.x project on Middleman 2.0,
+  review the Migration guide:
+  
+  http://middlemanapp.com/guides/migrating
+
+******************************************************************************
+eos
+
   s.add_runtime_dependency("rack", ["~> 1.3.0"])
   s.add_runtime_dependency("thin", ["~> 1.2.11"])
   s.add_runtime_dependency("thor", ["~> 0.14.0"])