diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd539a9c..671cfed3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,6 +8,7 @@ set( CLI_CLIENT_EXECUTABLE_NAME graphene_client )
 set( GUI_CLIENT_EXECUTABLE_NAME BitShares )
 set( CUSTOM_URL_SCHEME "gcs" )
 set( INSTALLER_APP_ID "68ad7005-8eee-49c9-95ce-9eed97e5b347" )
+set( CMAKE_CXX_VERSION 14 )
 
 # http://stackoverflow.com/a/18369825
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
@@ -46,7 +47,6 @@ LIST(APPEND BOOST_COMPONENTS thread
                              system
                              filesystem
                              program_options
-                             signals
                              serialization
                              chrono
                              unit_test_framework
@@ -113,11 +113,11 @@ else( WIN32 ) # Apple AND Linux
     if( APPLE )
         # Apple Specific Options Here
         message( STATUS "Configuring BitShares on OS X" )
-        set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -std=c++11 -stdlib=libc++ -Wall" )
+        set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -stdlib=libc++ -Wall" )
     else( APPLE )
         # Linux Specific Options Here
         message( STATUS "Configuring BitShares on Linux" )
-        set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -std=c++11 -Wall" )
+        set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -Wall" )
         set( rt_library rt )
         #set( pthread_library pthread)
         set(CMAKE_LINKER_FLAGS "-pthread" CACHE STRING "Linker Flags" FORCE)
diff --git a/libraries/chain/include/graphene/chain/protocol/address.hpp b/libraries/chain/include/graphene/chain/protocol/address.hpp
index 564bab53..39e3bf36 100644
--- a/libraries/chain/include/graphene/chain/protocol/address.hpp
+++ b/libraries/chain/include/graphene/chain/protocol/address.hpp
@@ -78,19 +78,6 @@ namespace fc
    void from_variant( const fc::variant& var,  graphene::chain::address& vo, uint32_t max_depth = 1 );
 }
 
-namespace std
-{
-   template<>
-   struct hash<graphene::chain::address>
-   {
-       public:
-         size_t operator()(const graphene::chain::address &a) const
-         {
-            return (uint64_t(a.addr._hash[0])<<32) | uint64_t( a.addr._hash[0] );
-         }
-   };
-}
-
 #include <fc/reflect/reflect.hpp>
 FC_REFLECT( graphene::chain::address, (addr) )
 
diff --git a/libraries/db/include/graphene/db/flat_index.hpp b/libraries/db/include/graphene/db/flat_index.hpp
index f1b7912e..0d17cbfa 100644
--- a/libraries/db/include/graphene/db/flat_index.hpp
+++ b/libraries/db/include/graphene/db/flat_index.hpp
@@ -93,14 +93,6 @@ namespace graphene { namespace db {
             } FC_CAPTURE_AND_RETHROW()
          }
 
-         virtual fc::uint128 hash()const override {
-            fc::uint128 result;
-            for( const auto& ptr : _objects )
-               result += ptr.hash();
-
-            return result;
-         }
-
          class const_iterator
          {
             public: