diff --git a/Gemfile b/Gemfile
index ccbbc00..224e611 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,9 @@ source 'https://rubygems.org'
 
 # Specify your gem's dependencies in pact.gemspec
 gemspec
-
+# if ENV['X_PACT_DEVELOPMENT']
+#   gem "pact-ffi", path: '../pact-ruby-ffi'
+# end
 group :test do
   gem 'faraday', '~> 2.0'
   gem 'faraday-retry', '~> 2.0'
diff --git a/lib/pact/array_like.rb b/lib/pact/array_like.rb
index 13bb30c..bd8176b 100644
--- a/lib/pact/array_like.rb
+++ b/lib/pact/array_like.rb
@@ -15,6 +15,8 @@ def to_hash
       {
         :json_class => self.class.name,
         :contents => contents,
+        'pact:matcher:type' => 'type',
+        :value => [contents],
         :min => min
       }
     end
diff --git a/lib/pact/configuration.rb b/lib/pact/configuration.rb
index 8793222..025e9d3 100644
--- a/lib/pact/configuration.rb
+++ b/lib/pact/configuration.rb
@@ -6,7 +6,7 @@
 require 'pact/shared/text_differ'
 require 'pact/shared/form_differ'
 require 'pact/shared/multipart_form_differ'
-
+# require 'pact/ffi/logger'
 
 module Pact
 
@@ -45,6 +45,7 @@ def self.=~ other
     attr_accessor :pact_dir
     attr_accessor :log_dir
     attr_accessor :tmp_dir
+    # attr_accessor :rust_log_level
 
     attr_writer :logger
 
@@ -58,7 +59,7 @@ def self.default_configuration
       c.pact_dir = File.expand_path('./spec/pacts')
       c.tmp_dir = File.expand_path('./tmp/pacts')
       c.log_dir = default_log_dir
-
+      # c.rust_log_level = 0
       c.output_stream = $stdout
       c.error_stream = $stderr
       c.pactfile_write_order = :chronological
@@ -167,6 +168,7 @@ def is_rake_running?
     end
 
     def create_logger
+      # PactFfi::Logger.log_to_stdout(rust_log_level)
       FileUtils::mkdir_p log_dir
       logger = ::Logger.new(log_path)
       logger.level = ::Logger::DEBUG
diff --git a/lib/pact/consumer_contract/http_consumer_contract_parser.rb b/lib/pact/consumer_contract/http_consumer_contract_parser.rb
index e072bf5..af12fd5 100644
--- a/lib/pact/consumer_contract/http_consumer_contract_parser.rb
+++ b/lib/pact/consumer_contract/http_consumer_contract_parser.rb
@@ -26,7 +26,9 @@ def pact_specification_version hash
       # metadata.pactSpecificationVersion
       maybe_pact_specification_version_1 = hash[:metadata] && hash[:metadata]['pactSpecification'] && hash[:metadata]['pactSpecification']['version']
       maybe_pact_specification_version_2 = hash[:metadata] && hash[:metadata]['pactSpecificationVersion']
-      pact_specification_version = maybe_pact_specification_version_1 || maybe_pact_specification_version_2
+      maybe_pact_specification_version_3 = hash[:metadata] && hash[:metadata]['pactSpecificationVersion']
+      maybe_pact_specification_version_4 = hash[:metadata] && hash[:metadata]['pactSpecificationVersion']
+      pact_specification_version = maybe_pact_specification_version_1 || maybe_pact_specification_version_2 || maybe_pact_specification_version_3  || maybe_pact_specification_version_4
       pact_specification_version ? Pact::SpecificationVersion.new(pact_specification_version) : Pact::SpecificationVersion::NIL_VERSION
     end
 
diff --git a/lib/pact/something_like.rb b/lib/pact/something_like.rb
index 399a688..0f23ecb 100644
--- a/lib/pact/something_like.rb
+++ b/lib/pact/something_like.rb
@@ -15,8 +15,12 @@ def initialize contents
 
     def to_hash
       {
+        # pact ruby
         :json_class => self.class.name,
-        :contents => contents
+        :contents => contents,
+        # pact rust
+        'pact:matcher:type' => 'type',
+        'value' => contents
       }
     end
 
diff --git a/lib/pact/term.rb b/lib/pact/term.rb
index 0b27ca6..1b7905b 100644
--- a/lib/pact/term.rb
+++ b/lib/pact/term.rb
@@ -33,7 +33,12 @@ def initialize(attributes = {})
     end
 
     def to_hash
-      { json_class: self.class.name, data: { generate: generate, matcher: fix_regexp(matcher) } }
+      # Pact-Ruby V2 Standard
+      # { json_class: self.class.name, data: { generate: generate, matcher: fix_regexp(matcher) } }
+      # Pact-Rust V2 Standard.
+      { "pact:matcher:type": 'regex', value: generate, regex: fix_regexp(matcher)['s'] } 
+      # Both
+      { "pact:matcher:type": 'regex', value: generate, regex: fix_regexp(matcher)['s'], json_class: self.class.name, data: { generate: generate, matcher: fix_regexp(matcher) }  }
     end
 
     def as_json(options = {})
diff --git a/pact-support.gemspec b/pact-support.gemspec
index a984465..bbaaf84 100644
--- a/pact-support.gemspec
+++ b/pact-support.gemspec
@@ -23,6 +23,7 @@ Gem::Specification.new do |spec|
   spec.add_runtime_dependency "awesome_print", "~> 1.9"
   spec.add_runtime_dependency "diff-lcs", "~> 1.5"
   spec.add_runtime_dependency "expgen", "~> 0.1"
+  # spec.add_runtime_dependency 'pact-ffi', '~> 0.4'
 
   spec.add_development_dependency "rspec", ">= 2.14", "< 4.0"
   spec.add_development_dependency "rake", "~> 13.0"