diff --git a/core/testsupport/src/TestSupport.cxx b/core/testsupport/src/TestSupport.cxx
index 402f57e83a8202..9889a432f408ff 100644
--- a/core/testsupport/src/TestSupport.cxx
+++ b/core/testsupport/src/TestSupport.cxx
@@ -57,16 +57,6 @@ static struct ForbidDiagnostics {
       }
 
       // FIXME: RNTuple warns that it's in beta stage.
-      if (level == kWarning
-          && strstr(msg, "The RNTuple file format will change. Do not store real data with this version of RNTuple!") != nullptr) {
-        std::cerr << "Warning in " << location << " " << msg << std::endl;
-        return;
-      }
-      if (level == kWarning
-          && strstr(msg, "Pre-release format version: RC ") != nullptr) {
-        std::cerr << "Warning in " << location << " " << msg << std::endl;
-        return;
-      }
       if (level == kWarning && strstr(msg, "Merging RNTuples is experimental") != nullptr) {
          std::cerr << "Warning in " << location << " " << msg << std::endl;
          return;
diff --git a/tree/ntuple/v7/src/RPageStorageFile.cxx b/tree/ntuple/v7/src/RPageStorageFile.cxx
index a7d8ddb984147c..6177432c41078d 100644
--- a/tree/ntuple/v7/src/RPageStorageFile.cxx
+++ b/tree/ntuple/v7/src/RPageStorageFile.cxx
@@ -47,11 +47,6 @@ ROOT::Experimental::Internal::RPageSinkFile::RPageSinkFile(std::string_view ntup
                                                            const RNTupleWriteOptions &options)
    : RPagePersistentSink(ntupleName, options)
 {
-   static std::once_flag once;
-   std::call_once(once, []() {
-      R__LOG_WARNING(NTupleLog()) << "The RNTuple file format will change. "
-                                  << "Do not store real data with this version of RNTuple!";
-   });
    fCompressor = std::make_unique<RNTupleCompressor>();
    EnableDefaultMetrics("RPageSinkFile");
    fFeatures.fCanMergePages = true;
diff --git a/tree/ntuple/v7/test/ntuple_merger.cxx b/tree/ntuple/v7/test/ntuple_merger.cxx
index 50f03eac74aa71..119fa318b3293e 100644
--- a/tree/ntuple/v7/test/ntuple_merger.cxx
+++ b/tree/ntuple/v7/test/ntuple_merger.cxx
@@ -734,8 +734,6 @@ TEST(RNTupleMerger, MergeThroughTFileMergerIncremental)
 TEST(RNTupleMerger, MergeThroughTFileMergerKey)
 {
    ROOT::TestSupport::CheckDiagsRAII diags;
-   diags.optionalDiag(kWarning, "RPageSinkFile", "The RNTuple file format will change.", false);
-   diags.optionalDiag(kWarning, "[ROOT.NTuple]", "Pre-release format version: RC 2", false);
    diags.requiredDiag(kWarning, "TFileMerger", "Merging RNTuples is experimental");
    diags.requiredDiag(kError, "RNTuple::Merge", "Output file already has key, but not of type RNTuple!");
    diags.requiredDiag(kError, "TFileMerger", "Could NOT merge RNTuples!");
@@ -774,8 +772,6 @@ TEST(RNTupleMerger, MergeThroughTFileMergerKey)
 TEST(RNTupleMerger, MergeThroughTBufferMerger)
 {
    ROOT::TestSupport::CheckDiagsRAII diags;
-   diags.optionalDiag(kWarning, "RPageSinkFile", "The RNTuple file format will change.", false);
-   diags.optionalDiag(kWarning, "[ROOT.NTuple]", "Pre-release format version: RC 2", false);
    diags.requiredDiag(kWarning, "TFileMerger", "Merging RNTuples is experimental");
    diags.requiredDiag(kWarning, "TBufferMergerFile", "not attached to the directory", false);
 
diff --git a/tree/ntuple/v7/test/ntuple_storage_daos.cxx b/tree/ntuple/v7/test/ntuple_storage_daos.cxx
index 40201fdd8842c3..4a49da6699fffb 100644
--- a/tree/ntuple/v7/test/ntuple_storage_daos.cxx
+++ b/tree/ntuple/v7/test/ntuple_storage_daos.cxx
@@ -26,7 +26,6 @@ class RPageStorageDaos : public ::testing::Test {
       // Initialized at the start of each test to expect diagnostic messages from TestSupport
       fRootDiags.optionalDiag(kWarning, "ROOT::Experimental::Internal::RPageSinkDaos::RPageSinkDaos",
                               "The DAOS backend is experimental and still under development.", false);
-      fRootDiags.optionalDiag(kWarning, "[ROOT.NTuple]", "Pre-release format version: RC 3", false);
       fRootDiags.optionalDiag(kWarning, "in int daos_init()",
                               "This RNTuple build uses libdaos_mock. Use only for testing!");
    }
diff --git a/tree/ntuple/v7/test/rfield_class.cxx b/tree/ntuple/v7/test/rfield_class.cxx
index 939b4f1a90d664..323eca88281444 100644
--- a/tree/ntuple/v7/test/rfield_class.cxx
+++ b/tree/ntuple/v7/test/rfield_class.cxx
@@ -233,8 +233,6 @@ TEST(RNTuple, TClassReadRules)
 {
    ROOT::TestSupport::CheckDiagsRAII diags;
    diags.requiredDiag(kWarning, "[ROOT.NTuple]", "ignoring I/O customization rule with non-transient member: a", false);
-   diags.optionalDiag(kWarning, "[ROOT.NTuple]", "The RNTuple file format will change.", false);
-   diags.optionalDiag(kWarning, "[ROOT.NTuple]", "Pre-release format version: RC 2", false);
 
    FileRaii fileGuard("test_ntuple_tclassrules.root");
    char c[4] = {'R', 'O', 'O', 'T'};