diff --git a/CHANGELOG.md b/CHANGELOG.md
index e41ca1b33..002eab474 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-### Upcoming Release v1.0.0.pre2 (TBD)
+## Current Release v1.0.0.pre2 (19 September 2015)
 
 * Simplification of `RubySingleThreadExecutor`
 * `Async` improvements
@@ -10,8 +10,9 @@
   - Now `Observable`
   - Added a `#reset` method
 * Brand new `Agent` API and implementation. Now functionally equivalent to Clojure.
+* Continued improvements to the synchronization layer
 
-## Current Release v1.0.0.pre1 (19 Aug 2015)
+### Release v1.0.0.pre1 (19 August 2015)
 
 * Merged in the `thread_safe` gem
   - `Concurrent::Array`
diff --git a/build-tests/atomic_boolean_builds_spec.rb b/build-tests/atomic_boolean_builds_spec.rb
index 9d754fba4..206e85689 100644
--- a/build-tests/atomic_boolean_builds_spec.rb
+++ b/build-tests/atomic_boolean_builds_spec.rb
@@ -28,15 +28,17 @@ def atomic_boolean_test(clazz, opts = {})
   let!(:threads) { 10 }
   let!(:tests) { 1000 }
 
-  describe Concurrent::MutexAtomicBoolean do
+  unless jruby?
+    describe Concurrent::MutexAtomicBoolean do
 
-    specify 'is defined' do
-      expect(defined?(Concurrent::MutexAtomicBoolean)).to be_truthy
-    end
+      specify 'is defined' do
+        expect(defined?(Concurrent::MutexAtomicBoolean)).to be_truthy
+      end
 
-    specify 'runs the benchmarks' do
-      stats = atomic_boolean_test('MutexAtomicBoolean', threads: threads, tests: tests)
-      expect(stats).to be_benchmark_results
+      specify 'runs the benchmarks' do
+        stats = atomic_boolean_test('MutexAtomicBoolean', threads: threads, tests: tests)
+        expect(stats).to be_benchmark_results
+      end
     end
   end
 
diff --git a/build-tests/atomic_fixnum_builds_spec.rb b/build-tests/atomic_fixnum_builds_spec.rb
index d35071637..f68f9553b 100644
--- a/build-tests/atomic_fixnum_builds_spec.rb
+++ b/build-tests/atomic_fixnum_builds_spec.rb
@@ -28,15 +28,17 @@ def atomic_fixnum_test(clazz, opts = {})
   let!(:threads) { 10 }
   let!(:tests) { 1000 }
 
-  describe Concurrent::MutexAtomicFixnum do
+  unless jruby?
+    describe Concurrent::MutexAtomicFixnum do
 
-    specify 'is defined' do
-      expect(defined?(Concurrent::MutexAtomicFixnum)).to be_truthy
-    end
+      specify 'is defined' do
+        expect(defined?(Concurrent::MutexAtomicFixnum)).to be_truthy
+      end
 
-    specify 'runs the benchmarks' do
-      stats = atomic_fixnum_test('MutexAtomicFixnum', threads: threads, tests: tests)
-      expect(stats).to be_benchmark_results
+      specify 'runs the benchmarks' do
+        stats = atomic_fixnum_test('MutexAtomicFixnum', threads: threads, tests: tests)
+        expect(stats).to be_benchmark_results
+      end
     end
   end
 
diff --git a/build-tests/atomic_reference_builds_spec.rb b/build-tests/atomic_reference_builds_spec.rb
index 59bb7e4dc..32dee8928 100644
--- a/build-tests/atomic_reference_builds_spec.rb
+++ b/build-tests/atomic_reference_builds_spec.rb
@@ -28,15 +28,17 @@ def atomic_reference_test(clazz, opts = {})
   let!(:threads) { 10 }
   let!(:tests) { 1000 }
 
-  describe Concurrent::MutexAtomicReference do
+  unless jruby?
+    describe Concurrent::MutexAtomicReference do
 
-    specify 'is defined' do
-      expect(defined?(Concurrent::MutexAtomicReference)).to be_truthy
-    end
+      specify 'is defined' do
+        expect(defined?(Concurrent::MutexAtomicReference)).to be_truthy
+      end
 
-    specify 'runs the benchmarks' do
-      stats = atomic_reference_test('MutexAtomicReference', threads: threads, tests: tests)
-      expect(stats).to be_benchmark_results
+      specify 'runs the benchmarks' do
+        stats = atomic_reference_test('MutexAtomicReference', threads: threads, tests: tests)
+        expect(stats).to be_benchmark_results
+      end
     end
   end
 
diff --git a/build-tests/runner.rb b/build-tests/runner.rb
index 521919d08..460c7944c 100755
--- a/build-tests/runner.rb
+++ b/build-tests/runner.rb
@@ -102,13 +102,13 @@ def run_test_suite(files, ext, platform = '')
 puts SUITE_BREAK
 
 run_test_suite(TEST_FILES, false)
-if mri?
-  if ! windows?
-    puts SUITE_BREAK
-    run_test_suite(TEST_FILES, true)
-  end
-  if platform_specific_extensions?(RUBY_PLATFORM)
-    puts SUITE_BREAK
-    run_test_suite(TEST_FILES, true, RUBY_PLATFORM)
-  end
-end
+#if mri?
+  #if ! windows?
+    #puts SUITE_BREAK
+    #run_test_suite(TEST_FILES, true)
+  #end
+  #if platform_specific_extensions?(RUBY_PLATFORM)
+    #puts SUITE_BREAK
+    #run_test_suite(TEST_FILES, true, RUBY_PLATFORM)
+  #end
+#end
diff --git a/lib/concurrent/version.rb b/lib/concurrent/version.rb
index 76dc97177..0f8518002 100644
--- a/lib/concurrent/version.rb
+++ b/lib/concurrent/version.rb
@@ -1,4 +1,4 @@
 module Concurrent
-  VERSION      = '1.0.0.pre1'
-  EDGE_VERSION = '0.2.0.pre1'
+  VERSION      = '1.0.0.pre2'
+  EDGE_VERSION = '0.2.0.pre2'
 end
diff --git a/publish-concurrent-ruby.rb b/publish-concurrent-ruby.rb
new file mode 100755
index 000000000..d21a40925
--- /dev/null
+++ b/publish-concurrent-ruby.rb
@@ -0,0 +1,20 @@
+#!/usr/bin/env ruby
+
+# get the current gem version
+require_relative './lib/concurrent/version'
+
+GEMS = [
+  "concurrent-ruby-#{Concurrent::VERSION}.gem",
+  "concurrent-ruby-#{Concurrent::VERSION}-java.gem",
+  "concurrent-ruby-ext-#{Concurrent::VERSION}.gem",
+  "concurrent-ruby-ext-#{Concurrent::VERSION}-x86-mingw32.gem",
+  "concurrent-ruby-ext-#{Concurrent::VERSION}-x64-mingw32.gem",
+  "concurrent-ruby-edge-#{Concurrent::EDGE_VERSION}.gem",
+]
+
+GEMS.each do |gem|
+  file = File.join("pkg", gem)
+  basename = File.basename(file)
+  puts "Publishing #{basename}..."
+  `gem push #{file}`
+end