diff --git a/cpp/include/Ice/Communicator.h b/cpp/include/Ice/Communicator.h
index 9fbde3452a6..14888f02bba 100644
--- a/cpp/include/Ice/Communicator.h
+++ b/cpp/include/Ice/Communicator.h
@@ -405,9 +405,9 @@ namespace Ice
         IceInternal::ReferencePtr _stringToProxy(const std::string& str) const;
         IceInternal::ReferencePtr _propertyToProxy(const std::string& property) const;
 
-        friend ICE_API CommunicatorPtr initialize(int&, const char*[], const InitializationData&, std::int32_t);
-        friend ICE_API CommunicatorPtr initialize(StringSeq&, const InitializationData&, std::int32_t);
-        friend ICE_API CommunicatorPtr initialize(const InitializationData&, std::int32_t);
+        friend ICE_API CommunicatorPtr initialize(int&, const char*[], const InitializationData&);
+        friend ICE_API CommunicatorPtr initialize(StringSeq&, const InitializationData&);
+        friend ICE_API CommunicatorPtr initialize(const InitializationData&);
         friend ICE_API IceInternal::InstancePtr IceInternal::getInstance(const Ice::CommunicatorPtr&);
         friend ICE_API IceInternal::TimerPtr IceInternal::getInstanceTimer(const Ice::CommunicatorPtr&);
 
diff --git a/cpp/include/Ice/Initialize.h b/cpp/include/Ice/Initialize.h
index 864a872c491..c7e6408aa29 100644
--- a/cpp/include/Ice/Initialize.h
+++ b/cpp/include/Ice/Initialize.h
@@ -358,15 +358,10 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr initialize(
-        int& argc,
-        const char* argv[],
-        const InitializationData& initData = InitializationData(),
-        int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr
+    initialize(int& argc, const char* argv[], const InitializationData& initData = InitializationData());
 
     /**
      * Initializes a new communicator.
@@ -379,17 +374,12 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    inline CommunicatorPtr initialize(
-        int& argc,
-        char* argv[],
-        const InitializationData& initData = InitializationData(),
-        int version = ICE_INT_VERSION)
+    inline CommunicatorPtr
+    initialize(int& argc, char* argv[], const InitializationData& initData = InitializationData())
     {
-        return initialize(argc, const_cast<const char**>(argv), initData, version);
+        return initialize(argc, const_cast<const char**>(argv), initData);
     }
 
     /**
@@ -403,12 +393,9 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr
-    initialize(int& argc, const char* argv[], const std::string& configFile, int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(int& argc, const char* argv[], const std::string& configFile);
 
     /**
      * Initializes a new communicator.
@@ -421,14 +408,11 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    inline CommunicatorPtr
-    initialize(int& argc, char* argv[], const std::string& configFile, int version = ICE_INT_VERSION)
+    inline CommunicatorPtr initialize(int& argc, char* argv[], const std::string& configFile)
     {
-        return initialize(argc, const_cast<const char**>(argv), configFile, version);
+        return initialize(argc, const_cast<const char**>(argv), configFile);
     }
 
 #ifdef _WIN32
@@ -443,15 +427,10 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr initialize(
-        int& argc,
-        const wchar_t* argv[],
-        const InitializationData& initData = InitializationData(),
-        int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr
+    initialize(int& argc, const wchar_t* argv[], const InitializationData& initData = InitializationData());
 
     /**
      * Initializes a new communicator.
@@ -464,17 +443,12 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    inline CommunicatorPtr initialize(
-        int& argc,
-        wchar_t* argv[],
-        const InitializationData& initData = InitializationData(),
-        int version = ICE_INT_VERSION)
+    inline CommunicatorPtr
+    initialize(int& argc, wchar_t* argv[], const InitializationData& initData = InitializationData())
     {
-        return initialize(argc, const_cast<const wchar_t**>(argv), initData, version);
+        return initialize(argc, const_cast<const wchar_t**>(argv), initData);
     }
 
     /**
@@ -488,12 +462,9 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr
-    initialize(int& argc, const wchar_t* argv[], const std::string& configFile, int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(int& argc, const wchar_t* argv[], const std::string& configFile);
 
     /**
      * Initializes a new communicator.
@@ -506,14 +477,11 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this vector upon return.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    inline CommunicatorPtr
-    initialize(int& argc, wchar_t* argv[], const std::string& configFile, int version = ICE_INT_VERSION)
+    inline CommunicatorPtr initialize(int& argc, wchar_t* argv[], const std::string& configFile)
     {
-        return initialize(argc, const_cast<const wchar_t**>(argv), configFile, version);
+        return initialize(argc, const_cast<const wchar_t**>(argv), configFile);
     }
 #endif
 
@@ -526,14 +494,9 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this container upon return.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr initialize(
-        StringSeq& seq,
-        const InitializationData& initData = InitializationData(),
-        int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(StringSeq& seq, const InitializationData& initData = InitializationData());
 
     /**
      * Initializes a new communicator.
@@ -544,30 +507,23 @@ namespace Ice
      * file and in the arguments, the arguments take precedence.
      * Recognized options are removed from this container upon return.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr initialize(StringSeq& seq, const std::string& configFile, int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(StringSeq& seq, const std::string& configFile);
 
     /**
      * Initializes a new communicator.
      * @param initData Configuration data for the new Communicator.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr
-    initialize(const InitializationData& initData = InitializationData(), int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(const InitializationData& initData = InitializationData());
 
     /**
      * Initializes a new communicator.
      * @param configFile The name of an Ice configuration file.
-     * @param version Indicates the Ice version with which the application is compatible. If not
-     * specified, the version of the Ice installation is used.
      * @return The new communicator.
      */
-    ICE_API CommunicatorPtr initialize(const std::string& configFile, int version = ICE_INT_VERSION);
+    ICE_API CommunicatorPtr initialize(const std::string& configFile);
 
     /**
      * Obtains the per-process logger. This logger is used by all communicators that do not have their
diff --git a/cpp/include/Ice/Service.h b/cpp/include/Ice/Service.h
index d7e25174cf0..f68b51b3af7 100644
--- a/cpp/include/Ice/Service.h
+++ b/cpp/include/Ice/Service.h
@@ -60,15 +60,9 @@ namespace Ice
          * @param argc Specifies the number of arguments in argv.
          * @param argv The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The application's exit status: EXIT_FAILURE or EXIT_SUCCESS.
          */
-        int main(
-            int argc,
-            const char* const argv[],
-            const InitializationData& initData = InitializationData(),
-            int version = ICE_INT_VERSION);
+        int main(int argc, const char* const argv[], const InitializationData& initData = InitializationData());
 
 #ifdef _WIN32
         /**
@@ -92,15 +86,9 @@ namespace Ice
          * @param argc Specifies the number of arguments in argv.
          * @param argv The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The application's exit status: EXIT_FAILURE or EXIT_SUCCESS.
          */
-        int main(
-            int argc,
-            const wchar_t* const argv[],
-            const InitializationData& initData = InitializationData(),
-            int version = ICE_INT_VERSION);
+        int main(int argc, const wchar_t* const argv[], const InitializationData& initData = InitializationData());
 #endif
 
         /**
@@ -123,14 +111,9 @@ namespace Ice
          *
          * @param args The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The application's exit status: EXIT_FAILURE or EXIT_SUCCESS.
          */
-        int main(
-            const StringSeq& args,
-            const InitializationData& initData = InitializationData(),
-            int version = ICE_INT_VERSION);
+        int main(const StringSeq& args, const InitializationData& initData = InitializationData());
 
         /**
          * Obtains the communicator created by the service.
@@ -177,15 +160,9 @@ namespace Ice
          * @param argc Specifies the number of arguments in argv.
          * @param argv The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The application's exit status: EXIT_FAILURE or EXIT_SUCCESS.
          */
-        int
-        run(int argc,
-            const wchar_t* const argv[],
-            const InitializationData& initData = InitializationData(),
-            int version = ICE_INT_VERSION);
+        int run(int argc, const wchar_t* const argv[], const InitializationData& initData = InitializationData());
 #endif
 
         /**
@@ -199,15 +176,9 @@ namespace Ice
          * @param argc Specifies the number of arguments in argv.
          * @param argv The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The application's exit status: EXIT_FAILURE or EXIT_SUCCESS.
          */
-        int
-        run(int argc,
-            const char* const argv[],
-            const InitializationData& initData = InitializationData(),
-            int version = ICE_INT_VERSION);
+        int run(int argc, const char* const argv[], const InitializationData& initData = InitializationData());
 
 #ifdef _WIN32
 
@@ -275,12 +246,10 @@ namespace Ice
          * @param argc Specifies the number of arguments in argv.
          * @param argv The command-line arguments.
          * @param initData Configuration data for the new Communicator.
-         * @param version Indicates the Ice version with which the application is compatible. If not
-         * specified, the version of the Ice installation is used.
          * @return The new communicator instance.
          */
         virtual Ice::CommunicatorPtr
-        initializeCommunicator(int& argc, char* argv[], const InitializationData& initData, int version);
+        initializeCommunicator(int& argc, char* argv[], const InitializationData& initData);
 
         /**
          * Logs a system error, which includes a description of the
@@ -376,7 +345,7 @@ namespace Ice
 
 #else
 
-        int runDaemon(int, char*[], const InitializationData&, int);
+        int runDaemon(int, char*[], const InitializationData&);
 
         bool _changeDirectory;
         bool _closeFiles;
diff --git a/cpp/src/Glacier2/Glacier2Router.cpp b/cpp/src/Glacier2/Glacier2Router.cpp
index e2274658653..0ba5b5cb94d 100644
--- a/cpp/src/Glacier2/Glacier2Router.cpp
+++ b/cpp/src/Glacier2/Glacier2Router.cpp
@@ -62,7 +62,7 @@ namespace
     protected:
         bool start(int, char*[], int&) override;
         bool stop() override;
-        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&, int) override;
+        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&) override;
 
     private:
         void usage(const std::string&);
@@ -410,11 +410,7 @@ RouterService::stop()
 }
 
 CommunicatorPtr
-RouterService::initializeCommunicator(
-    int& argc,
-    char* argv[],
-    const InitializationData& initializationData,
-    int version)
+RouterService::initializeCommunicator(int& argc, char* argv[], const InitializationData& initializationData)
 {
     InitializationData initData = initializationData;
     initData.properties = createProperties(argc, argv, initializationData.properties);
@@ -456,7 +452,7 @@ RouterService::initializeCommunicator(
     // for incoming connections from clients must be disabled in
     // the clients.
 
-    return Service::initializeCommunicator(argc, argv, initData, version);
+    return Service::initializeCommunicator(argc, argv, initData);
 }
 
 void
diff --git a/cpp/src/Ice/Initialize.cpp b/cpp/src/Ice/Initialize.cpp
index a383fed9047..409b9f8b12f 100644
--- a/cpp/src/Ice/Initialize.cpp
+++ b/cpp/src/Ice/Initialize.cpp
@@ -196,49 +196,9 @@ Ice::ThreadHookPlugin::destroy()
 {
 }
 
-namespace
-{
-    inline void checkIceVersion(int version)
-    {
-#ifndef ICE_IGNORE_VERSION
-
-#    if ICE_INT_VERSION % 100 > 50
-        //
-        // Beta version: exact match required
-        //
-        if (ICE_INT_VERSION != version)
-        {
-            throw InitializationException{
-                __FILE__,
-                __LINE__,
-                "version mismatch: runtime = " + to_string(ICE_INT_VERSION) +
-                    ", generated code = " + to_string(version)};
-        }
-#    else
-
-        if ((ICE_INT_VERSION / 100 != version / 100) || // Major and minor version numbers must match.
-            (version % 100 > 50) ||                     // Reject beta caller
-            // The caller's patch level cannot be greater than library's patch level.
-            (version % 100 > ICE_INT_VERSION % 100))
-
-        {
-            throw InitializationException{
-                __FILE__,
-                __LINE__,
-                "version mismatch: runtime = " + to_string(ICE_INT_VERSION) +
-                    ", generated code = " + to_string(version)};
-        }
-
-#    endif
-#endif
-    }
-}
-
 Ice::CommunicatorPtr
-Ice::initialize(int& argc, const char* argv[], const InitializationData& initializationData, int version)
+Ice::initialize(int& argc, const char* argv[], const InitializationData& initializationData)
 {
-    checkIceVersion(version);
-
     InitializationData initData = initializationData;
     initData.properties = createProperties(argc, argv, initData.properties);
 
@@ -248,60 +208,57 @@ Ice::initialize(int& argc, const char* argv[], const InitializationData& initial
 }
 
 Ice::CommunicatorPtr
-Ice::initialize(int& argc, const char* argv[], const string& configFile, int version)
+Ice::initialize(int& argc, const char* argv[], const string& configFile)
 {
     InitializationData initData;
     initData.properties = createProperties();
     initData.properties->load(configFile);
-    return initialize(argc, argv, initData, version);
+    return initialize(argc, argv, initData);
 }
 
 #ifdef _WIN32
 Ice::CommunicatorPtr
-Ice::initialize(int& argc, const wchar_t* argv[], const InitializationData& initializationData, int version)
+Ice::initialize(int& argc, const wchar_t* argv[], const InitializationData& initializationData)
 {
     Ice::StringSeq args = argsToStringSeq(argc, argv);
-    CommunicatorPtr communicator = initialize(args, initializationData, version);
+    CommunicatorPtr communicator = initialize(args, initializationData);
     stringSeqToArgs(args, argc, argv);
     return communicator;
 }
 
 Ice::CommunicatorPtr
-Ice::initialize(int& argc, const wchar_t* argv[], const string& configFile, int version)
+Ice::initialize(int& argc, const wchar_t* argv[], const string& configFile)
 {
     InitializationData initData;
     initData.properties = createProperties();
     initData.properties->load(configFile);
-    return initialize(argc, argv, initData, version);
+    return initialize(argc, argv, initData);
 }
 #endif
 
 Ice::CommunicatorPtr
-Ice::initialize(StringSeq& args, const InitializationData& initializationData, int version)
+Ice::initialize(StringSeq& args, const InitializationData& initializationData)
 {
     IceInternal::ArgVector av(args);
-    CommunicatorPtr communicator = initialize(av.argc, av.argv, initializationData, version);
+    CommunicatorPtr communicator = initialize(av.argc, av.argv, initializationData);
     args = argsToStringSeq(av.argc, av.argv);
     return communicator;
 }
 
 Ice::CommunicatorPtr
-Ice::initialize(StringSeq& args, const string& configFile, int version)
+Ice::initialize(StringSeq& args, const string& configFile)
 {
     InitializationData initData;
     initData.properties = createProperties();
     initData.properties->load(configFile);
-    return initialize(args, initData, version);
+    return initialize(args, initData);
 }
 
 Ice::CommunicatorPtr
-Ice::initialize(const InitializationData& initData, int version)
+Ice::initialize(const InitializationData& initData)
 {
-    //
     // We can't simply call the other initialize() because this one does NOT read
     // the config file, while the other one always does.
-    //
-    checkIceVersion(version);
 
     CommunicatorPtr communicator = Communicator::create(initData);
     int argc = 0;
@@ -311,12 +268,12 @@ Ice::initialize(const InitializationData& initData, int version)
 }
 
 Ice::CommunicatorPtr
-Ice::initialize(const string& configFile, int version)
+Ice::initialize(const string& configFile)
 {
     InitializationData initData;
     initData.properties = createProperties();
     initData.properties->load(configFile);
-    return initialize(initData, version);
+    return initialize(initData);
 }
 
 LoggerPtr
diff --git a/cpp/src/Ice/Service.cpp b/cpp/src/Ice/Service.cpp
index 5e4cf939d68..253d8916413 100644
--- a/cpp/src/Ice/Service.cpp
+++ b/cpp/src/Ice/Service.cpp
@@ -469,7 +469,7 @@ Ice::Service::interrupt()
 }
 
 int
-Ice::Service::main(int argc, const char* const argv[], const InitializationData& initializationData, int version)
+Ice::Service::main(int argc, const char* const argv[], const InitializationData& initializationData)
 {
     _name = "";
     if (argc > 0)
@@ -659,22 +659,22 @@ Ice::Service::main(int argc, const char* const argv[], const InitializationData&
         }
     }
 
-    return run(av.argc, av.argv, initData, version);
+    return run(av.argc, av.argv, initData);
 }
 
 #ifdef _WIN32
 int
-Ice::Service::main(int argc, const wchar_t* const argv[], const InitializationData& initializationData, int version)
+Ice::Service::main(int argc, const wchar_t* const argv[], const InitializationData& initializationData)
 {
-    return main(Ice::argsToStringSeq(argc, argv), initializationData, version);
+    return main(Ice::argsToStringSeq(argc, argv), initializationData);
 }
 #endif
 
 int
-Ice::Service::main(const StringSeq& args, const InitializationData& initData, int version)
+Ice::Service::main(const StringSeq& args, const InitializationData& initData)
 {
     IceInternal::ArgVector av(args);
-    return main(av.argc, av.argv, initData, version);
+    return main(av.argc, av.argv, initData);
 }
 
 Ice::CommunicatorPtr
@@ -703,16 +703,16 @@ Ice::Service::name() const
 
 #ifdef _WIN32
 int
-Ice::Service::run(int argc, const wchar_t* const argv[], const InitializationData& initData, int version)
+Ice::Service::run(int argc, const wchar_t* const argv[], const InitializationData& initData)
 {
     StringSeq args = Ice::argsToStringSeq(argc, argv);
     IceInternal::ArgVector av(args);
-    return run(av.argc, av.argv, initData, version);
+    return run(av.argc, av.argv, initData);
 }
 #endif
 
 int
-Ice::Service::run(int argc, const char* const argv[], const InitializationData& initData, int version)
+Ice::Service::run(int argc, const char* const argv[], const InitializationData& initData)
 {
     IceInternal::ArgVector av(argc, argv); // copy args
 
@@ -721,7 +721,7 @@ Ice::Service::run(int argc, const char* const argv[], const InitializationData&
 #ifdef _WIN32
         return runService(av.argc, av.argv, initData);
 #else
-        return runDaemon(av.argc, av.argv, initData, version);
+        return runDaemon(av.argc, av.argv, initData);
 #endif
     }
 
@@ -742,7 +742,7 @@ Ice::Service::run(int argc, const char* const argv[], const InitializationData&
         //
         // Initialize the communicator.
         //
-        _communicator = initializeCommunicator(av.argc, av.argv, initData, version);
+        _communicator = initializeCommunicator(av.argc, av.argv, initData);
 
         //
         // Use the configured logger.
@@ -880,9 +880,9 @@ Ice::Service::stop()
 }
 
 Ice::CommunicatorPtr
-Ice::Service::initializeCommunicator(int& argc, char* argv[], const InitializationData& initData, int version)
+Ice::Service::initializeCommunicator(int& argc, char* argv[], const InitializationData& initData)
 {
-    return Ice::initialize(argc, argv, initData, version);
+    return Ice::initialize(argc, argv, initData);
 }
 
 void
@@ -1238,7 +1238,7 @@ Ice::Service::serviceMain(int argc, const wchar_t* const argv[])
     //
     try
     {
-        _communicator = initializeCommunicator(argc, args, _initData, ICE_INT_VERSION);
+        _communicator = initializeCommunicator(argc, args, _initData);
     }
     catch (const Ice::Exception& ex)
     {
@@ -1435,7 +1435,7 @@ ServiceStatusManager::run()
 #else
 
 int
-Ice::Service::runDaemon(int argc, char* argv[], const InitializationData& initData, int version)
+Ice::Service::runDaemon(int argc, char* argv[], const InitializationData& initData)
 {
     assert(_service);
 
@@ -1620,7 +1620,7 @@ Ice::Service::runDaemon(int argc, char* argv[], const InitializationData& initDa
         //
         // Initialize the communicator.
         //
-        _communicator = initializeCommunicator(argc, argv, initData, version);
+        _communicator = initializeCommunicator(argc, argv, initData);
 
         if (_closeFiles)
         {
diff --git a/cpp/src/IceBridge/IceBridge.cpp b/cpp/src/IceBridge/IceBridge.cpp
index 6c3c6894829..3afcfbd6a25 100644
--- a/cpp/src/IceBridge/IceBridge.cpp
+++ b/cpp/src/IceBridge/IceBridge.cpp
@@ -158,7 +158,7 @@ namespace
     protected:
         bool start(int, char*[], int&) final;
         bool stop() final;
-        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&, int) final;
+        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&) final;
 
     private:
         void usage(const std::string&);
@@ -585,11 +585,7 @@ BridgeService::stop()
 }
 
 CommunicatorPtr
-BridgeService::initializeCommunicator(
-    int& argc,
-    char* argv[],
-    const InitializationData& initializationData,
-    int version)
+BridgeService::initializeCommunicator(int& argc, char* argv[], const InitializationData& initializationData)
 {
     InitializationData initData = initializationData;
     initData.properties = createProperties(argc, argv, initializationData.properties);
@@ -602,7 +598,7 @@ BridgeService::initializeCommunicator(
         initData.properties->setProperty("Ice.RetryIntervals", "-1");
     }
 
-    return Service::initializeCommunicator(argc, argv, initData, version);
+    return Service::initializeCommunicator(argc, argv, initData);
 }
 
 void
diff --git a/cpp/src/IceGrid/IceGridNode.cpp b/cpp/src/IceGrid/IceGridNode.cpp
index 50dfe1b737c..b9abe2f5b84 100644
--- a/cpp/src/IceGrid/IceGridNode.cpp
+++ b/cpp/src/IceGrid/IceGridNode.cpp
@@ -55,7 +55,7 @@ namespace
         bool startImpl(int, char*[], int&);
         void waitForShutdown() override;
         bool stop() override;
-        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&, int) override;
+        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&) override;
 
     private:
         void usage(const std::string&);
@@ -720,7 +720,7 @@ NodeService::stop()
 }
 
 CommunicatorPtr
-NodeService::initializeCommunicator(int& argc, char* argv[], const InitializationData& initializationData, int version)
+NodeService::initializeCommunicator(int& argc, char* argv[], const InitializationData& initializationData)
 {
     InitializationData initData = initializationData;
     initData.properties = createProperties(argc, argv, initData.properties);
@@ -772,7 +772,7 @@ NodeService::initializeCommunicator(int& argc, char* argv[], const Initializatio
     //
     setupThreadPool(initData.properties, "Ice.ThreadPool.Client", 1, 100);
 
-    return Service::initializeCommunicator(argc, argv, initData, version);
+    return Service::initializeCommunicator(argc, argv, initData);
 }
 
 void
diff --git a/cpp/src/IceGrid/IceGridRegistry.cpp b/cpp/src/IceGrid/IceGridRegistry.cpp
index 172e734aaca..984d467ab7a 100644
--- a/cpp/src/IceGrid/IceGridRegistry.cpp
+++ b/cpp/src/IceGrid/IceGridRegistry.cpp
@@ -25,7 +25,7 @@ namespace IceGrid
         bool start(int, char*[], int&) override;
         void waitForShutdown() override;
         bool stop() override;
-        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&, int) override;
+        CommunicatorPtr initializeCommunicator(int&, char*[], const InitializationData&) override;
 
     private:
         void usage(const std::string&);
@@ -138,11 +138,7 @@ RegistryService::stop()
 }
 
 CommunicatorPtr
-RegistryService::initializeCommunicator(
-    int& argc,
-    char* argv[],
-    const InitializationData& initializationData,
-    int version)
+RegistryService::initializeCommunicator(int& argc, char* argv[], const InitializationData& initializationData)
 {
     InitializationData initData = initializationData;
     initData.properties = createProperties(argc, argv, initData.properties);
@@ -202,7 +198,7 @@ RegistryService::initializeCommunicator(
     //
     setupThreadPool(initData.properties, "Ice.ThreadPool.Client", 1, 100);
 
-    return Service::initializeCommunicator(argc, argv, initData, version);
+    return Service::initializeCommunicator(argc, argv, initData);
 }
 
 void