diff --git a/co_sim_io/impl/communication/file_communication.hpp b/co_sim_io/impl/communication/file_communication.hpp
index 6794ad56..7121a3e0 100644
--- a/co_sim_io/impl/communication/file_communication.hpp
+++ b/co_sim_io/impl/communication/file_communication.hpp
@@ -25,6 +25,7 @@
 #include "communication.hpp"
 #include "../vtk_utilities.hpp"
 #include "../filesystem_inc.hpp"
+#include "../version.hpp"
 
 namespace CoSimIO {
 namespace Internals {
@@ -115,13 +116,31 @@ class FileCommunication : public Communication
         CheckStream(my_config_file, I_MyFileName);
 
         // TODO write configuration and do sth with it?
-        my_config_file << "Hello there\n";
+        // Maybe in the future use Import/ExportInfo here...
+        my_config_file << GetMajorVersion() << "\n";
+        my_config_file << GetMinorVersion() << "\n";
+        my_config_file << GetPatchVersion() << "\n";
 
         my_config_file.close();
         MakeFileVisible(I_MyFileName);
 
         WaitForPath(I_PartnerFileName);
+
+        std::ifstream partner_config_file(I_PartnerFileName);
+        CheckStream(partner_config_file, I_PartnerFileName);
+
         // TODO read configuration and do sth with it?
+        int partner_major_version;
+        int partner_minor_version;
+
+        partner_config_file >> partner_major_version;
+        partner_config_file >> partner_minor_version;
+
+        partner_config_file.close();
+
+        CO_SIM_IO_INFO_IF("CoSimIO", GetMajorVersion() != partner_major_version) << "Major version mismatch!" << std::endl;
+        CO_SIM_IO_INFO_IF("CoSimIO", GetMinorVersion() != partner_minor_version) << "Minor version mismatch!" << std::endl;
+
         RemovePath(I_PartnerFileName);
 
         WaitUntilFileIsRemoved(I_MyFileName);
diff --git a/co_sim_io/impl/version.hpp b/co_sim_io/impl/version.hpp
index 6b70895d..65719e87 100644
--- a/co_sim_io/impl/version.hpp
+++ b/co_sim_io/impl/version.hpp
@@ -19,7 +19,7 @@
 namespace CoSimIO {
 
 constexpr int GetMajorVersion() {
-    return 1;
+    return 2;
 }
 
 constexpr int GetMinorVersion() {
diff --git a/co_sim_io/python/co_sim_io_python.cpp b/co_sim_io/python/co_sim_io_python.cpp
index 8c2bc257..193492a9 100644
--- a/co_sim_io/python/co_sim_io_python.cpp
+++ b/co_sim_io/python/co_sim_io_python.cpp
@@ -32,28 +32,6 @@
 #include "connection_status_to_python.hpp"
 #include "version_to_python.hpp"
 
-namespace CoSimIO_Py_Wrappers {
-
-CoSimIO::Info ImportMesh(
-    const CoSimIO::Info& I_Info,
-    CoSimIO::ModelPart& rModelPart)
-{
-    return CoSimIO::ImportMesh(
-        I_Info,
-        rModelPart);
-}
-
-CoSimIO::Info ExportMesh(
-    const CoSimIO::Info& I_Info,
-    const CoSimIO::ModelPart& rModelPart)
-{
-    return CoSimIO::ExportMesh(
-        I_Info,
-        rModelPart);
-}
-
-} // namespace CoSimIO_Py_Wrappers
-
 
 PYBIND11_MODULE(CoSimIO, m)
 {
@@ -64,11 +42,8 @@ PYBIND11_MODULE(CoSimIO, m)
     m.def("Connect",    &CoSimIO::Connect);
     m.def("Disconnect", &CoSimIO::Disconnect);
 
-    m.def("ImportMesh", CoSimIO_Py_Wrappers::ImportMesh);
-    m.def("ExportMesh", CoSimIO_Py_Wrappers::ExportMesh);
-    // TODO uncomment when starting to use new Interface
-    // m.def("ImportMesh", &CoSimIO::ImportMesh);
-    // m.def("ExportMesh", &CoSimIO::ExportMesh);
+    m.def("ImportMesh", &CoSimIO::ImportMesh);
+    m.def("ExportMesh", &CoSimIO::ExportMesh);
 
     m.def("ImportData", [](const CoSimIO::Info& I_Info, std::vector<double>& rValues){
         return CoSimIO::ImportData(
diff --git a/tests/integration_tutorials/c/hello.c b/tests/integration_tutorials/c/hello.c
index c88603cd..bf2941fa 100644
--- a/tests/integration_tutorials/c/hello.c
+++ b/tests/integration_tutorials/c/hello.c
@@ -23,12 +23,6 @@
         return 1;                                                \
     }
 
-#define COSIMIO_CHECK_STRING_EQUAL(a, b)                             \
-    if (strcmp(a,b)) {                                               \
-        printf("in line %d: %s is not equal to %s", __LINE__, a, b); \
-        return 1;                                                    \
-    }
-
 int main()
 {
     CoSimIO_Info hello_info = CoSimIO_Hello();
@@ -37,11 +31,11 @@ int main()
 
     int major_version = CoSimIO_Info_GetInt(hello_info, "major_version");
     int minor_version = CoSimIO_Info_GetInt(hello_info, "minor_version");
-    const char* patch_version = CoSimIO_Info_GetString(hello_info, "patch_version");
+    // const char* patch_version = CoSimIO_Info_GetString(hello_info, "patch_version");
+
+    COSIMIO_CHECK_EQUAL((major_version>0), 1);
+    COSIMIO_CHECK_EQUAL((minor_version>=0), 1);
 
-    COSIMIO_CHECK_EQUAL(major_version, 1);
-    COSIMIO_CHECK_EQUAL(minor_version, 0);
-    COSIMIO_CHECK_STRING_EQUAL(patch_version, "0");
 
     CoSimIO_FreeInfo(hello_info);
 
diff --git a/tests/integration_tutorials/cpp/hello.cpp b/tests/integration_tutorials/cpp/hello.cpp
index bdb2710b..39d091ec 100644
--- a/tests/integration_tutorials/cpp/hello.cpp
+++ b/tests/integration_tutorials/cpp/hello.cpp
@@ -30,8 +30,8 @@ int main()
     int minor_version = info.Get<int>("minor_version");
     std::string patch_version = info.Get<std::string>("patch_version");
 
-    COSIMIO_CHECK_EQUAL(major_version, 1);
-    COSIMIO_CHECK_EQUAL(minor_version, 0);
+    COSIMIO_CHECK_EQUAL((major_version>0), 1);
+    COSIMIO_CHECK_EQUAL((minor_version>=0), 1);
 
     return 0;
 }
diff --git a/tests/integration_tutorials/python/hello.py b/tests/integration_tutorials/python/hello.py
index 75c7167e..fe9192ed 100644
--- a/tests/integration_tutorials/python/hello.py
+++ b/tests/integration_tutorials/python/hello.py
@@ -22,7 +22,7 @@ def cosimio_check_equal(a, b):
 minor_version = info.GetInt("minor_version")
 patch_version = info.GetString("patch_version")
 
-cosimio_check_equal(major_version,1)
+cosimio_check_equal(major_version,2)
 cosimio_check_equal(minor_version,0)
 
 print("CoSimIO version", str(major_version)+"."+str(minor_version)+"."+patch_version)
\ No newline at end of file