diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b3e4a79..fa68d022 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -155,6 +155,10 @@ if (BUILD_TESTING)
   target_link_libraries(test_missing PUBLIC ebml)
   add_test(test_missing test_missing)
 
+  add_executable(test_versioning test/test_versioning.cxx)
+  target_link_libraries(test_versioning PUBLIC ebml)
+  add_test(test_versioning test_versioning)
+
 endif(BUILD_TESTING)
 
 
diff --git a/test/test_versioning.cxx b/test/test_versioning.cxx
new file mode 100644
index 00000000..7985aeba
--- /dev/null
+++ b/test/test_versioning.cxx
@@ -0,0 +1,205 @@
+// Copyright © 2024 Steve Lhomme.
+// SPDX-License-Identifier: ISC
+
+#include <ebml/EbmlString.h>
+#include <ebml/EbmlHead.h>
+#include <ebml/EbmlContexts.h>
+
+using namespace libebml;
+
+static constexpr EbmlDocVersion AllVersions{};
+
+DECLARE_xxx_STRING(StringClass,)
+    EBML_CONCRETE_CLASS(StringClass)
+};
+DEFINE_xxx_STRING(StringClass, 0x4321, 2, EbmlHead, "StringClass", AllVersions, GetEbmlGlobal_Context)
+
+
+static constexpr EbmlDocVersion Deprecated{EbmlDocVersion::ANY_VERSION};
+
+DECLARE_xxx_UINTEGER(DeprecatedClass,)
+    EBML_CONCRETE_CLASS(DeprecatedClass)
+};
+DEFINE_xxx_UINTEGER(DeprecatedClass, 0x4320, 2, EbmlHead, "DeprecatedClass", Deprecated, GetEbmlGlobal_Context)
+
+
+static constexpr EbmlDocVersion FromThree{3};
+
+DECLARE_xxx_UINTEGER(FromThreeClass,)
+    EBML_CONCRETE_CLASS(FromThreeClass)
+};
+DEFINE_xxx_UINTEGER(FromThreeClass, 0x4323, 2, EbmlHead, "FromThreeClass", FromThree, GetEbmlGlobal_Context)
+
+
+static constexpr EbmlDocVersion UpToTwo{0,2};
+
+DECLARE_xxx_UINTEGER(UpToTwoClass,)
+    EBML_CONCRETE_CLASS(UpToTwoClass)
+};
+DEFINE_xxx_UINTEGER(UpToTwoClass, 0x4322, 2, EbmlHead, "UpToTwoClass", UpToTwo, GetEbmlGlobal_Context)
+
+
+class ExtraVersioning : public EbmlDocVersion
+{
+public:
+    constexpr ExtraVersioning(bool webm, version_type min = 0, version_type max = ANY_VERSION)
+        :EbmlDocVersion(min, max)
+        ,InWebM(webm)
+    {}
+
+    const bool InWebM;
+};
+
+constexpr ExtraVersioning ExtraAllVersions{true};
+
+DECLARE_xxx_STRING(ExtraStringClass,)
+    EBML_CONCRETE_CLASS(ExtraStringClass)
+};
+DEFINE_xxx_STRING(ExtraStringClass, 0x4321, 2, EbmlHead, "ExtraStringClass", ExtraAllVersions, GetEbmlGlobal_Context)
+
+
+constexpr ExtraVersioning ExtraDeprecated{false, EbmlDocVersion::ANY_VERSION};
+
+DECLARE_xxx_UINTEGER(ExtraDeprecatedClass,)
+    EBML_CONCRETE_CLASS(ExtraDeprecatedClass)
+};
+DEFINE_xxx_UINTEGER(ExtraDeprecatedClass, 0x4320, 2, EbmlHead, "ExtraDeprecatedClass", ExtraDeprecated, GetEbmlGlobal_Context)
+
+constexpr ExtraVersioning ExtraFromThreeVersion{true, 3};
+
+DECLARE_xxx_UINTEGER(ExtraFromThreeClass,)
+    EBML_CONCRETE_CLASS(ExtraFromThreeClass)
+};
+DEFINE_xxx_UINTEGER(ExtraFromThreeClass, 0x4323, 2, EbmlHead, "ExtraFromThreeClass", ExtraFromThreeVersion, GetEbmlGlobal_Context)
+
+
+constexpr ExtraVersioning ExtraUpToTwoVersion{false, 0, 2};
+
+DECLARE_xxx_UINTEGER(ExtraUpToTwoClass,)
+    EBML_CONCRETE_CLASS(ExtraUpToTwoClass)
+};
+DEFINE_xxx_UINTEGER(ExtraUpToTwoClass, 0x4322, 2, EbmlHead, "ExtraUpToTwoClass", ExtraUpToTwoVersion, GetEbmlGlobal_Context)
+
+
+int main(void)
+{
+    StringClass StringClass;
+    const auto & specAll = StringClass.ElementSpec();
+    if (!specAll.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (specAll.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+
+    DeprecatedClass DeprecatedClass;
+    const auto & specDeprecated = DeprecatedClass.ElementSpec();
+    if (specDeprecated.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (!specDeprecated.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+
+    FromThreeClass FromThreeClass;
+    const auto & specFromThree = FromThreeClass.ElementSpec();
+    if (specFromThree.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (!specFromThree.GetVersions().IsValidInVersion(3))
+        return 1;
+
+    if (!specFromThree.GetVersions().IsValidInVersion(4))
+        return 1;
+
+    if (specFromThree.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+
+    const auto & specUpToTwo = UpToTwoClass::GetElementSpec();
+    if (!specUpToTwo.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (!specUpToTwo.GetVersions().IsValidInVersion(2))
+        return 1;
+
+    if (specUpToTwo.GetVersions().IsValidInVersion(3))
+        return 1;
+
+    if (specUpToTwo.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+
+
+    ExtraStringClass ExtraStringClass;
+    const auto & specAllExtra = static_cast<const ExtraVersioning &>(ExtraStringClass.ElementSpec().GetVersions());
+    if (!specAllExtra.IsValidInVersion(1))
+        return 1;
+
+    if (specAllExtra.IsAlwaysDeprecated())
+        return 1;
+
+    if (specAllExtra.IsAlwaysDeprecated())
+        return 1;
+
+    if (!specAllExtra.InWebM)
+        return 1;
+
+
+    const auto * specDeprecatedExtra = static_cast<const ExtraVersioning *>(&ExtraDeprecatedClass::GetElementSpec().GetVersions());
+    if (specDeprecatedExtra->IsValidInVersion(1))
+        return 1;
+
+    if (!specDeprecatedExtra->IsAlwaysDeprecated())
+        return 1;
+
+    if (specDeprecatedExtra->InWebM)
+        return 1;
+
+
+    ExtraFromThreeClass ExtraFromThreeClass;
+    const auto & specFromThreeExtra = ExtraFromThreeClass.ElementSpec();
+    if (specFromThreeExtra.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (!specFromThreeExtra.GetVersions().IsValidInVersion(3))
+        return 1;
+
+    if (!specFromThreeExtra.GetVersions().IsValidInVersion(4))
+        return 1;
+
+    if (specFromThreeExtra.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+    const ExtraVersioning * p_specFromThreeExtra = static_cast<const ExtraVersioning *>(&specFromThreeExtra.GetVersions());
+    if (p_specFromThreeExtra->IsValidInVersion(1))
+        return 1;
+
+    if (!p_specFromThreeExtra->IsValidInVersion(3))
+        return 1;
+
+    if (!p_specFromThreeExtra->IsValidInVersion(4))
+        return 1;
+
+    if (p_specFromThreeExtra->IsAlwaysDeprecated())
+        return 1;
+
+    if (!p_specFromThreeExtra->InWebM)
+        return 1;
+
+
+    const auto & specUpToTwoExtra = ExtraUpToTwoClass::GetElementSpec();
+    if (!specUpToTwoExtra.GetVersions().IsValidInVersion(1))
+        return 1;
+
+    if (!specUpToTwoExtra.GetVersions().IsValidInVersion(2))
+        return 1;
+
+    if (specUpToTwoExtra.GetVersions().IsValidInVersion(3))
+        return 1;
+
+    if (specUpToTwoExtra.GetVersions().IsAlwaysDeprecated())
+        return 1;
+
+    return 0;
+}