diff --git a/.kokoro/release/all-generated.cfg b/.kokoro/release/all-generated.cfg
new file mode 100644
index 000000000..ec149aa10
--- /dev/null
+++ b/.kokoro/release/all-generated.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "PACKAGE"
+    value: "ALL_GENERATED"
+}
diff --git a/.kokoro/release/common.cfg b/.kokoro/release/common.cfg
new file mode 100644
index 000000000..34a76ea43
--- /dev/null
+++ b/.kokoro/release/common.cfg
@@ -0,0 +1,89 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Build logs will be here
+action {
+  define_artifacts {
+    regex: "**/*sponge_log.xml"
+  }
+}
+
+# Fetch the token needed for reporting release status to GitHub
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "yoshi-automation-github-key"
+    }
+  }
+}
+
+# Fetch magictoken to use with Magic Github Proxy 
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "releasetool-magictoken"
+      backend_type: FASTCONFIGPUSH
+    }
+  }
+}
+
+# Fetch api key to use with Magic Github Proxy 
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "magic-github-proxy-api-key"
+      backend_type: FASTCONFIGPUSH
+    }
+  }
+}
+
+before_action {
+  fetch_keystore {
+    keystore_resource {
+      keystore_config_id: 73713
+      keyname: "docuploader_service_account"
+    }
+  }
+}
+
+# Download resources for system tests (service account key, etc.)
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-ruby"
+
+# Download trampoline resources.
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
+
+# Use the trampoline script to run in docker.
+build_file: "google-api-ruby-client/.kokoro/trampoline.sh"
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+    key: "TRAMPOLINE_IMAGE"
+    value: "gcr.io/cloud-devrel-kokoro-resources/yoshi-ruby/release"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/google-api-ruby-client/.kokoro/build.sh"
+}
+
+env_vars: {
+    key: "TRAMPOLINE_SCRIPT"
+    value: "trampoline_v1.py"
+}
+
+env_vars: {
+    key: "JOB_TYPE"
+    value: "release"
+}
+
+env_vars: {
+    key: "OS"
+    value: "linux"
+}
+
+env_vars: {
+    key: "REPO_DIR"
+    value: "github/google-api-ruby-client"
+}
diff --git a/.kokoro/release/core.cfg b/.kokoro/release/core.cfg
new file mode 100644
index 000000000..dd9b0cb3b
--- /dev/null
+++ b/.kokoro/release/core.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "PACKAGE"
+    value: "google-apis-core"
+}
diff --git a/.kokoro/release/generator.cfg b/.kokoro/release/generator.cfg
new file mode 100644
index 000000000..6cb93bc27
--- /dev/null
+++ b/.kokoro/release/generator.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "PACKAGE"
+    value: "google-apis-generator"
+}
diff --git a/.kokoro/release/umbrella.cfg b/.kokoro/release/umbrella.cfg
new file mode 100644
index 000000000..cd64ac141
--- /dev/null
+++ b/.kokoro/release/umbrella.cfg
@@ -0,0 +1,6 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+env_vars: {
+    key: "PACKAGE"
+    value: "google-api-client"
+}
diff --git a/Rakefile b/Rakefile
index f6724290e..b9559d5ff 100644
--- a/Rakefile
+++ b/Rakefile
@@ -5,6 +5,10 @@ namespace :kokoro do
     load_env_vars
   end
 
+  task :dry_run do
+    ENV["DRY_RUN"] = "true"
+  end
+
   task :presubmit do
     Rake::Task["kokoro:run_tests"].invoke
   end
@@ -26,8 +30,27 @@ namespace :kokoro do
   end
 
   task :release do
-    Rake::Task["kokoro:publish_gem"].invoke
-    Rake::Task["kokoro:publish_docs"].invoke
+    require_relative "rakelib/releaser.rb"
+
+    load_env_vars if ENV["KOKORO_GFILE_DIR"]
+    package = ENV["PACKAGE"]
+    raise "PACKAGE missing" unless package
+    dry_run = ENV["DRY_RUN"]
+
+    if package == "ALL_GENERATED"
+      Dir.glob("generated/google-apis-*") do |gem_dir|
+        gem_name = File.basename(gem_dir)
+        releaser = Releaser.new(gem_name, gem_dir, dry_run: dry_run)
+        if releaser.needs_gem_publish?
+          releaser.publish_gem
+          releaser.publish_docs
+        end
+      end
+    else
+      releaser = Releaser.new(package, package, dry_run: dry_run)
+      releaser.publish_gem if releaser.needs_gem_publish?
+      releaser.publish_docs
+    end
   end
 
   task :run_tests do
@@ -42,40 +65,6 @@ namespace :kokoro do
       end
     end
   end
-
-  task :publish_gem do
-    require "gems"
-
-    load_env_vars if ENV["KOKORO_GFILE_DIR"]
-    api_token = ENV["RUBYGEMS_API_TOKEN"]
-    if api_token
-      ::Gems.configure do |config|
-        config.key = api_token
-      end
-    end
-
-    cd "google-api-client" do
-      Bundler.with_clean_env do
-        rm_rf "pkg"
-        sh "bundle update"
-        sh "bundle exec rake build"
-        built_gem_path = Dir.glob("pkg/google-api-client-*.gem").last
-
-        response = ::Gems.push File.new built_gem_path
-        puts response
-        raise "Failed to release gem" unless response.include? "Successfully registered gem:"
-      end
-    end
-  end
-
-  desc "Publish docs for the latest git tag"
-  task :publish_docs do
-    require_relative "rakelib/devsite/devsite_builder.rb"
-
-    cd "google-api-client" do
-      DevsiteBuilder.new.publish ENV["DOCS_BUILD_TAG"]
-    end
-  end
 end
 
 def load_env_vars
diff --git a/rakelib/releaser.rb b/rakelib/releaser.rb
new file mode 100644
index 000000000..ec6fe232e
--- /dev/null
+++ b/rakelib/releaser.rb
@@ -0,0 +1,146 @@
+require "fileutils"
+require "gems"
+require "rubygems"
+
+class Releaser
+  def initialize gem_name, gem_dir,
+                 rubygems_api_token: nil,
+                 docs_staging_bucket: nil,
+                 docuploader_credentials: nil,
+                 dry_run: false
+    @gem_name = gem_name
+    @gem_dir = File.expand_path(gem_dir)
+    @rubygems_api_token = rubygems_api_token || ENV["RUBYGEMS_API_TOKEN"]
+    @docs_staging_bucket = docs_staging_bucket || ENV["STAGING_BUCKET"] || "docs-staging"
+    @docuploader_credentials = docuploader_credentials
+    if @docuploader_credentials.nil? && ENV["KOKORO_KEYSTORE_DIR"]
+      @docuploader_credentials = File.join(ENV["KOKORO_KEYSTORE_DIR"], "73713_docuploader_service_account")
+    end
+    @dry_run = dry_run ? true : false
+    @rubygems_api_token_configured = false
+    @bundle_updated = false
+  end
+
+  attr_reader :gem_name
+  attr_reader :gem_dir
+  attr_reader :rubygems_api_token
+  attr_reader :docs_staging_bucket
+  attr_reader :docuploader_credentials
+
+  def dry_run?
+    @dry_run
+  end
+
+  def needs_gem_publish?
+    Gem::Version.new(gem_version) > Gem::Version.new(current_rubygems_version)
+  end
+
+  def publish_gem
+    configure_rubygems_api_token
+    bundle_dir do
+      FileUtils.rm_rf("pkg")
+      execute "bundle exec rake build"
+      built_gem_path = "pkg/#{gem_name}-#{gem_version}.gem"
+      raise "Failed to build #{built_gem_path}" unless File.file?(built_gem_path)
+      if dry_run?
+        puts "**** In dry run mode. Skipping gem publish of #{gem_name}"
+        return
+      end
+      response = gems_client.push(File.new(built_gem_path))
+      puts response
+      raise "Failed to publish gem" unless response.include? "Successfully registered gem:"
+    end
+  end
+
+  def publish_docs
+    bundle_dir do
+      FileUtils.rm_rf("doc")
+      FileUtils.rm_rf(".yardoc")
+      execute "bundle exec rake yard"
+      Dir.chdir("doc") do
+        execute "python3 -m docuploader create-metadata" \
+                " --name #{gem_name}" \
+                " --distribution-name #{gem_name}" \
+                " --language ruby" \
+                " --version v#{gem_version}"
+        unless docuploader_credentials
+          puts "**** No credentials available. Skipping doc upload of #{gem_name}"
+          return
+        end
+        if dry_run?
+          puts "**** In dry run mode. Skipping doc upload of #{gem_name}"
+          return
+        end
+        execute "python3 -m docuploader upload ." \
+                " --credentials=#{docuploader_credentials}" \
+                " --staging-bucket=#{docs_staging_bucket}" \
+                " --metadata-file=./docs.metadata"
+      end
+    end
+  end
+
+  def current_rubygems_version
+    @current_rubygems_version ||= begin
+      gems_client.info(gem_name)["version"]
+    rescue Gems::NotFound
+      "0.0.0"
+    end
+  end
+
+  def gem_version
+    @gem_version ||= begin
+      version_content = File.read(version_file_path)
+      match = /\s(?:GEM_)?VERSION = "([\d\.]+)"/.match(version_content)
+      raise "Unable to find version constant in #{version_file_path}" unless match
+      match[1]
+    end
+  end
+
+  def version_file_path
+    @version_file_path ||= begin
+      path = Dir.glob("#{gem_dir}/lib/google/apis/*/version.rb").first ||
+             Dir.glob("#{gem_dir}/lib/google/apis/*/gem_version.rb").first ||
+             Dir.glob("#{gem_dir}/lib/google/apis/version.rb").first
+      raise "Unable to find version file in #{gem_dir}" unless path
+      path
+    end
+  end
+
+  def gems_client
+    @gems_client ||= Gems::Client.new
+  end
+
+  def configure_rubygems_api_token
+    return if @rubygems_api_token_configured
+    @rubygems_api_token_configured = true
+    if rubygems_api_token
+      Gems.configure do |config|
+        config.key = rubygems_api_token
+      end
+    end
+  end
+
+  def bundle_dir
+    block = proc do
+      execute "bundle update" unless @bundle_updated
+      @bundle_updated = true
+      yield
+    end
+    Dir.chdir(gem_dir) do
+      if defined?(Bundler)
+        if Bundler.respond_to?(:with_unbundled_env)
+          Bundler.with_unbundled_env(&block)
+        else
+          Bundler.with_clean_env(&block)
+        end
+      else
+        block.call
+      end
+    end
+  end
+
+  def execute(cmd)
+    puts cmd
+    raise "Error executing command" unless system(cmd)
+  end
+end