diff --git a/ads_common/COPYING b/ads_common/COPYING
old mode 100644
new mode 100755
diff --git a/ads_common/ChangeLog b/ads_common/ChangeLog
old mode 100644
new mode 100755
index e727c64e9..cf2141b97
--- a/ads_common/ChangeLog
+++ b/ads_common/ChangeLog
@@ -1,6 +1,10 @@
-0.14.2:
+1.0.0:
+  - Major version bump. The library has been stable and feature complete for
+    some time, and this is more accurately reflected by this version number.
   - Throw explicit warning for disabled SSL peer verification.
   - Small performance improvements for large requests.
+  - No longer include test files in the built gem.
+  - Removing support for multiple environments.
 
 0.14.1:
   - Scrubbing an additional sensitive field present in some AdWords requests.
diff --git a/ads_common/LICENSE b/ads_common/LICENSE
old mode 100644
new mode 100755
diff --git a/ads_common/README.md b/ads_common/README.md
old mode 100644
new mode 100755
index c23d4de20..804c1b30a
--- a/ads_common/README.md
+++ b/ads_common/README.md
@@ -68,7 +68,7 @@ Google Ads Developers Plus page:
 
 # Copyright/License Info
 
-Copyright 2010-2015, Google Inc. All Rights Reserved.
+Copyright 2010-2017, Google Inc. All Rights Reserved.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
diff --git a/ads_common/google-ads-common.gemspec b/ads_common/google-ads-common.gemspec
old mode 100644
new mode 100755
index 3f515cbc9..16f818aee
--- a/ads_common/google-ads-common.gemspec
+++ b/ads_common/google-ads-common.gemspec
@@ -34,8 +34,7 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = '>= 1.3.6'
   s.rubyforge_project = 'google-ads-common'
   s.require_path = 'lib'
-  s.files = Dir.glob('{lib,test}/**/*') + %w(COPYING README.md ChangeLog)
-  s.test_files = Dir.glob('test/test_*.rb')
+  s.files = Dir.glob('lib/**/*') + %w(COPYING README.md ChangeLog)
   s.add_runtime_dependency('google-ads-savon', '~> 1.0', '>=1.0.2')
   s.add_runtime_dependency('httpi', '~> 2.3')
   s.add_runtime_dependency('httpclient', '~> 2.7')
diff --git a/ads_common/lib/ads_common/api.rb b/ads_common/lib/ads_common/api.rb
old mode 100644
new mode 100755
index 59dda7348..d1657467f
--- a/ads_common/lib/ads_common/api.rb
+++ b/ads_common/lib/ads_common/api.rb
@@ -70,10 +70,9 @@ def api_config()
     def service(name, version = nil)
       name = name.to_sym
       version = (version.nil?) ? api_config.default_version : version.to_sym
-      environment = @config.read('service.environment')
 
       # Check if the combination is available.
-      validate_service_request(environment, version, name)
+      validate_service_request(version, name)
 
       # Try to re-use the service for this version if it was requested before.
       wrapper = if @wrappers.include?(version) && @wrappers[version][name]
@@ -150,12 +149,11 @@ def save_oauth2_token(token)
     private
 
     # Auxiliary method to test parameters correctness for the service request.
-    def validate_service_request(environment, version, service)
-      # Check if the current environment supports the requested version.
-      unless api_config.environment_has_version(environment, version)
+    def validate_service_request(version, service)
+      # Check if the current config supports the requested version.
+      unless api_config.has_version(version)
         raise AdsCommon::Errors::Error,
-            "Environment '%s' does not support version '%s'" %
-            [environment.to_s, version.to_s]
+            "Version '%s' not recognized" % version.to_s
       end
 
       # Check if the specified version has the requested service.
@@ -196,18 +194,14 @@ def create_auth_handler()
           raise AdsCommon::Errors::Error,
               'OAuth authorization method is deprecated, use OAuth2 instead.'
         when :OAUTH2
-          environment = @config.read('service.environment',
-              api_config.default_environment())
           AdsCommon::Auth::OAuth2Handler.new(
               @config,
-              api_config.environment_config(environment, :oauth_scope)
+              api_config.config(:oauth_scope)
           )
         when :OAUTH2_SERVICE_ACCOUNT
-          environment = @config.read('service.environment',
-              api_config.default_environment())
           AdsCommon::Auth::OAuth2ServiceAccountHandler.new(
               @config,
-              api_config.environment_config(environment, :oauth_scope)
+              api_config.config(:oauth_scope)
           )
         else
           raise AdsCommon::Errors::Error,
@@ -226,15 +220,13 @@ def create_auth_handler()
     # - a simplified wrapper generated for the service
     #
     def prepare_wrapper(version, service)
-      environment = config.read('service.environment')
       api_config.do_require(version, service)
-      endpoint = api_config.endpoint(environment, version, service)
+      endpoint = api_config.endpoint(version, service)
       interface_class_name = api_config.interface_name(version, service)
 
       wrapper = class_for_path(interface_class_name).new(@config, endpoint)
       auth_handler = get_auth_handler()
-      header_ns =
-          api_config.environment_config(environment, :header_ns) + version.to_s
+      header_ns = api_config.config(:header_ns) + version.to_s
       soap_handler = soap_header_handler(auth_handler, version, header_ns,
                                          wrapper.namespace)
       wrapper.header_handler = soap_handler
@@ -270,10 +262,8 @@ def init_config()
       provided_adapter = @config.read('connection.adapter')
       @config.set('connection.adapter', :httpclient) if provided_adapter.nil?
 
-      # Validating most important parameters.
-      ['service.environment', 'authentication.method'].each do |parameter|
-        symbolize_config_value(parameter)
-      end
+      # Make sure Auth param is a symbol.
+      symbolize_config_value('authentication.method')
     end
 
     # Converts value of a config key to uppercase symbol.
diff --git a/ads_common/lib/ads_common/api_config.rb b/ads_common/lib/ads_common/api_config.rb
old mode 100644
new mode 100755
index 68bf5363d..e823c1b40
--- a/ads_common/lib/ads_common/api_config.rb
+++ b/ads_common/lib/ads_common/api_config.rb
@@ -42,14 +42,13 @@ def latest_version
       service_config.keys.select { |service| service.is_a? Integer }.max
     end
 
-    # Does the given environment exist and contain the given version?
+    # Does the current config contain the given version?
     #
     # Returns:
-    # Boolean indicating whether the given environment exists and contains the
-    # given version
+    # Boolean indicating whether the current config contains the given version
     #
-    def environment_has_version(environment, version)
-      return !environment_config(environment, version).nil?
+    def has_version(version)
+      return !config(version).nil?
     end
 
     # Does the given version exist and contain the given service?
@@ -94,32 +93,22 @@ def api_path
       return api_name.to_s.snakecase
     end
 
-    # Get the default environment.
-    #
-    # Returns:
-    # Default environment
-    #
-    def default_environment
-      raise NotImplementedError, 'default_environment not overriden.'
-    end
-
     # Get the default filename for the config file.
     def default_config_filename
       raise NotImplementedError, 'default_config_filename not overriden.'
     end
 
-    # Get the endpoint for a service on a given environment and API version.
+    # Get the endpoint for a service on a given API version.
     #
     # Args:
-    # - environment: the service environment to be used
     # - version: the API version
     # - service: the name of the API service
     #
     # Returns:
     # The endpoint URL
     #
-    def endpoint(environment, version, service)
-      base = get_wsdl_base(environment, version)
+    def endpoint(version, service)
+      base = get_wsdl_base(version)
       # TODO(dklimkin): Unflatten subdir constants. Cross-API refactor 0.9.0.
       if !subdir_config().nil?
         base = base.to_s + subdir_config()[[version, service]].to_s
@@ -142,19 +131,6 @@ def subdir(version, service)
       subdir_config()[[version, service]]
     end
 
-    # Get the authentication server details for an environment. Allows to
-    # override the auth URL via environmental variable.
-    #
-    # Args:
-    # - environment: the service environment to be used
-    #
-    # Returns:
-    # The full URL for the auth server
-    #
-    def auth_server(environment)
-      return ENV['ADSAPI_AUTH_URL'] || auth_server_config[environment]
-    end
-
     # Perform the loading of the necessary source files for a version.
     #
     # Args:
@@ -208,7 +184,7 @@ def interface_name(version, service)
     #
     def get_wsdls(version)
       res = {}
-      wsdl_base = get_wsdl_base(default_environment(), version)
+      wsdl_base = get_wsdl_base(version)
       postfix = wsdl_base.start_with?('http') ? '?wsdl' : '.wsdl'
       services(version).each do |service|
         path = wsdl_base
@@ -226,15 +202,13 @@ def get_wsdls(version)
     # the base URL via environmental variable.
     #
     # Args:
-    #   - environment: environment to use like :SANDBOX or :PRODUCTION
     #   - version: the API version
     #
     # Returns:
     #   String containing base URL
     #
-    def get_wsdl_base(environment, version)
-      return ENV['ADSAPI_BASE_URL'] ||
-          environment_config(environment, version)
+    def get_wsdl_base(version)
+      return ENV['ADSAPI_BASE_URL'] || config(version)
     end
   end
 end
diff --git a/ads_common/lib/ads_common/auth/base_handler.rb b/ads_common/lib/ads_common/auth/base_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/auth/oauth2_handler.rb b/ads_common/lib/ads_common/auth/oauth2_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/auth/oauth2_service_account_handler.rb b/ads_common/lib/ads_common/auth/oauth2_service_account_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/build/savon_abstract_generator.rb b/ads_common/lib/ads_common/build/savon_abstract_generator.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/build/savon_generator.rb b/ads_common/lib/ads_common/build/savon_generator.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/build/savon_registry.rb b/ads_common/lib/ads_common/build/savon_registry.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/build/savon_registry_generator.rb b/ads_common/lib/ads_common/build/savon_registry_generator.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/build/savon_service_generator.rb b/ads_common/lib/ads_common/build/savon_service_generator.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/config.rb b/ads_common/lib/ads_common/config.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/credential_handler.rb b/ads_common/lib/ads_common/credential_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/env_check.rb b/ads_common/lib/ads_common/env_check.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/errors.rb b/ads_common/lib/ads_common/errors.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/http.rb b/ads_common/lib/ads_common/http.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/parameters_validator.rb b/ads_common/lib/ads_common/parameters_validator.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/results_extractor.rb b/ads_common/lib/ads_common/results_extractor.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/savon_headers/base_header_handler.rb b/ads_common/lib/ads_common/savon_headers/base_header_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/savon_headers/oauth_header_handler.rb b/ads_common/lib/ads_common/savon_headers/oauth_header_handler.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/savon_service.rb b/ads_common/lib/ads_common/savon_service.rb
old mode 100644
new mode 100755
index 0932a80f3..2a9ab4fc9
--- a/ads_common/lib/ads_common/savon_service.rb
+++ b/ads_common/lib/ads_common/savon_service.rb
@@ -33,7 +33,7 @@ class SavonService
 
     FALLBACK_API_ERROR_EXCEPTION = "ApiException"
     MAX_FAULT_LOG_LENGTH = 16000
-    HEADER_PEEK_LENGTH = 1024
+    REDACTED_STR = 'REDACTED'
 
     # Creates a new service.
     def initialize(config, endpoint, namespace, version)
@@ -202,34 +202,27 @@ def do_logging(action, request, response)
         summary_message += ', Fault message: %s' % format_fault(
             response_hash[:envelope][:body][:fault][:faultstring])
         logger.warn(summary_message)
-        logger.info(request_message) if request_message
-        logger.info(response_message) if response_message
+        logger.info(request_message) unless request_message.nil?
+        logger.info(response_message) unless response_message.nil?
       else
         logger.info(summary_message)
-        logger.debug(request_message) if request_message
-        logger.debug(response_message) if response_message
+        logger.debug(request_message) unless request_message.nil?
+        logger.debug(response_message) unless response_message.nil?
       end
     end
 
     # Format headers, redacting sensitive information.
     def format_headers(headers)
       return headers.map do |k, v|
-        v = 'REDACTED' if k == 'Authorization'
+        v = REDACTED_STR if k == 'Authorization'
         [k, v].join(': ')
       end.join(', ')
     end
 
     # Sanitize the request body, redacting sensitive information.
     def sanitize_request(body)
-      body_tail = ""
-      if body.length > HEADER_PEEK_LENGTH
-        body_tail = body[HEADER_PEEK_LENGTH, body.length]
-        body = body[0, HEADER_PEEK_LENGTH]
-      end
-      body = body.gsub(/developerToken>[^<]+<\//, 'developerToken>REDACTED</')
-      body = body.gsub(/httpAuthorizationHeader>[^<]+<\//,
-          'httpAuthorizationHeader>REDACTED</')
-      return body + body_tail
+      return body.gsub(/(developerToken>|httpAuthorizationHeader>)[^<]+(<\/)/,
+          '\1' + REDACTED_STR + '\2')
     end
 
     # Format the fault message by capping length and removing newlines.
diff --git a/ads_common/lib/ads_common/utils.rb b/ads_common/lib/ads_common/utils.rb
old mode 100644
new mode 100755
diff --git a/ads_common/lib/ads_common/version.rb b/ads_common/lib/ads_common/version.rb
old mode 100644
new mode 100755
index b34b852cf..6f8a9b4f0
--- a/ads_common/lib/ads_common/version.rb
+++ b/ads_common/lib/ads_common/version.rb
@@ -19,6 +19,6 @@
 
 module AdsCommon
   module ApiConfig
-    CLIENT_LIB_VERSION = '0.14.2'
+    CLIENT_LIB_VERSION = '1.0.0'
   end
 end
diff --git a/ads_common/test/test_config.yml b/ads_common/test/test_config.yml
old mode 100644
new mode 100755
diff --git a/ads_common/test/test_savon_service.rb b/ads_common/test/test_savon_service.rb
index 45fb98366..05971b687 100755
--- a/ads_common/test/test_savon_service.rb
+++ b/ads_common/test/test_savon_service.rb
@@ -87,23 +87,37 @@ def test_sanitize_request()
     test1 = "<some_xml><developerToken>ab1cdEF2GH-IJ3KL_mn4OP" +
         "</developerToken></some_xml>"
     expected1 = "<some_xml><developerToken>REDACTED</developerToken></some_xml>"
+    assert_equal(expected1, @stub_service.sanitize_request(test1))
+
     test2 = "<xml><element1></element1><element2></element2></xml>"
+    assert_equal(test2, @stub_service.sanitize_request(test2))
+
     test3 = "<xml><ns1:developerToken>w-x_Y-Z_</ns1:developerToken></xml>"
     expected3 = "<xml><ns1:developerToken>REDACTED</ns1:developerToken></xml>"
+    assert_equal(expected3, @stub_service.sanitize_request(test3))
+
     test4 = "<xml><httpAuthorizationHeader>Authorization: Bearer " +
         "1/abcdEFGH1234</httpAuthorizationHeader></xml>"
     expected4 = "<xml><httpAuthorizationHeader>REDACTED" +
         "</httpAuthorizationHeader></xml>"
+    assert_equal(expected4, @stub_service.sanitize_request(test4))
+
     test5 = "<some_xml><developerToken>ab1cdEF2GH-IJ3KL_mn4OP" +
         "</developerToken>"
     test5 += "<operation>something</operation>" * 1024 + "</some_xml>"
     expected5 = "<some_xml><developerToken>REDACTED</developerToken>"
     expected5 += "<operation>something</operation>" * 1024 + "</some_xml>"
-    assert_equal(expected1, @stub_service.sanitize_request(test1))
-    assert_equal(test2, @stub_service.sanitize_request(test2))
-    assert_equal(expected3, @stub_service.sanitize_request(test3))
-    assert_equal(expected4, @stub_service.sanitize_request(test4))
     assert_equal(expected5, @stub_service.sanitize_request(test5))
+
+    src6 = "<OAuthInfo><httpAuthorizationHeader>abc21.deffoobar" +
+      "</httpAuthorizationHeader></OAuthInfo>\n"
+    dst6 = "<OAuthInfo><httpAuthorizationHeader>REDACTED" +
+      "</httpAuthorizationHeader></OAuthInfo>\n"
+    test6 = "<some_xml><developerToken>ab1cdEF2GH-IJ3KL_mn4OP" +
+        "</developerToken>" + src6 * 128 + "</some_xml>"
+    expected6 = "<some_xml><developerToken>REDACTED</developerToken>" +
+        dst6 * 128 + "</some_xml>"
+    assert_equal(expected6, @stub_service.sanitize_request(test6))
   end
 
   def test_format_fault()