diff --git a/README.md b/README.md
index 7ecfedcd9e..7395bdbbe5 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,17 @@ ruby-build provides an `rbenv-install` command that shortens this to:
 
 ### Version History
 
+#### 20110928
+
+* ruby-build now uses the `--with-gcc` configure flag on OS X Lion.
+* Added definitions for REE 1.8.7-2010.02 and 1.8.6-2009.06.
+* Modified `rbenv-install` to run `rbenv rehash` after installation.
+* Added a Ruby 1.9.3-rc1 definition.
+* Updated the JRuby defintions to install the `jruby-launcher` gem.
+* Updated the rbx-2.0.0 definition to point to the master branch.
+* Added a jruby-1.7.0-dev definition.
+* Added a Ruby 1.9.4-dev definition.
+
 #### 20110914
 
 * Added an rbx-2.0.0-dev definition for Rubinius 2.0.0 from git.
diff --git a/bin/ruby-build b/bin/ruby-build
index 9e766c80d7..690e16a693 100755
--- a/bin/ruby-build
+++ b/bin/ruby-build
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-RUBY_BUILD_VERSION="20110914"
+RUBY_BUILD_VERSION="20110928"
 
 set -E
 exec 3<&2 # preserve original stderr at fd 3
@@ -131,7 +131,7 @@ build_package_ree_installer() {
   if [[ "Darwin" = "$(uname)" ]]; then
     options="--no-tcmalloc"
   fi
-  
+
   # Work around install_useful_libraries crash with --dont-install-useful-gems
   mkdir -p "$PREFIX_PATH/lib/ruby/gems/1.8/gems"