diff --git a/lib/release/commander.rb b/lib/release/commander.rb
index 6cea02b..2c4f888 100644
--- a/lib/release/commander.rb
+++ b/lib/release/commander.rb
@@ -7,6 +7,8 @@ module Release
     COMMANDS = [
       :help,
       :init,
+      :major,
+      :minor,
       :patch
     ].sort
 
diff --git a/lib/release/major.rb b/lib/release/major.rb
new file mode 100644
index 0000000..62ba5e8
--- /dev/null
+++ b/lib/release/major.rb
@@ -0,0 +1,39 @@
+require_relative './base'
+
+module Release
+
+  class Major < Release::Base
+    def valid?
+      argv.size > 1
+    end
+
+    def help
+      "release major version"
+    end
+
+    def execute
+      subcommand, version, *extras = *argv
+
+      error "invalid version: #{version}"  unless version =~ /\d+\.\d+\.\d+/
+      error "unknown version: #{git_local_list_tags.join(' ')}" unless git_local_list_tags.include? "v#{version}"
+      error "invalid base branch: #{current_branch}"  unless standard_branches.include? current_branch
+
+      major_branch = major(version)
+
+      git_pull current_branch
+
+      git_local_branch_create major_branch, "v#{version}"
+
+      git_push major_branch
+    end
+
+    private
+
+    def major (version)
+      numbers = version.split('.').map { |x| x.to_i }
+      "#{numbers[0]+1}.0.0"
+    end
+
+  end
+
+end
diff --git a/lib/release/minor.rb b/lib/release/minor.rb
new file mode 100644
index 0000000..608a65f
--- /dev/null
+++ b/lib/release/minor.rb
@@ -0,0 +1,39 @@
+require_relative './base'
+
+module Release
+
+  class Minor < Release::Base
+    def valid?
+      argv.size > 1
+    end
+
+    def help
+      "release minor version"
+    end
+
+    def execute
+      subcommand, version, *extras = *argv
+
+      error "invalid version: #{version}"  unless version =~ /\d+\.\d+\.\d+/
+      error "unknown version: #{git_local_list_tags.join(' ')}" unless git_local_list_tags.include? "v#{version}"
+      error "invalid base branch: #{current_branch}"  unless standard_branches.include? current_branch
+
+      minor_branch = minor(version)
+
+      git_pull current_branch
+
+      git_local_branch_create minor_branch, "v#{version}"
+
+      git_push minor_branch
+    end
+
+    private
+
+    def minor (version)
+      numbers = version.split('.').map { |x| x.to_i }
+      "#{numbers[0]}.#{numbers[1]+1}.0"
+    end
+
+  end
+
+end