1.2.x will never support Ruby 2 or Rubygems 2

.travis.yml

@@ -17,25 +17,13 @@ rvm:
 # Rubygems versions MUST be available as rake tasks
 # see Rakefile:66 for the list of possible RGV values
 env:
-  # we need to know if changes to rubygems will break bundler on release
-  - RGV=master
-  # test the latest rubygems release with all of our supported rubies
+  # test the supported rubygems release with all of our supported rubies
   - RGV=v1.8.24
 matrix:
   allow_failures:
-    # we want to know how we're doing with head, but not fail the build
-    - rvm: ruby-head
-    # until the 2.0 rc, it's okay for failures to crop up
-    - rvm: 2.0.0-preview2
     # 1.9.2 is simply too slow. it sometimes exceeds the 25m hard limit.
     - rvm: 1.9.2
   include:
-    # riding the edge
-    - rvm: ruby-head
-      env: RGV=master
-    # 2.0 release track
-    - rvm: 2.0.0-preview2
-      env: RGV=v2.0.0.preview2.2
     # Bundler 1.x supports Rubygems down to 1.5.3 on Ruby 1.9.3
     - rvm: 1.9.3
       env: RGV=v1.7.2

Rakefile

@@ -95,7 +95,7 @@ begin
     namespace :rubygems do
       # Rubygems specs by version
       rubyopt = ENV["RUBYOPT"]
-      %w(master v1.3.6 v1.3.7 v1.4.2 v1.5.3 v1.6.2 v1.7.2 v1.8.24 v2.0.0.preview2.2).each do |rg|
+      %w(master v1.3.6 v1.3.7 v1.4.2 v1.5.3 v1.6.2 v1.7.2 v1.8.24).each do |rg|
         desc "Run specs with Rubygems #{rg}"
         RSpec::Core::RakeTask.new(rg) do |t|
           t.rspec_opts = %w(-fs --color)
@@ -149,7 +149,7 @@ begin
 
     desc "Run the tests on Travis CI against a rubygem version (using ENV['RGV'])"
     task :travis do
-      rg = ENV['RGV'] || 'master'
+      rg = ENV['RGV'] || 'v1.8.24'
 
       puts "\n\e[1;33m[Travis CI] Running bundler specs against rubygems #{rg}\e[m\n\n"
       specs = safe_task { Rake::Task["spec:rubygems:#{rg}"].invoke }