root-project · ferdymercury · Sep 4, 2026 · Sep 4, 2026 · Sep 4, 2026 · Sep 4, 2026
@@ -10,8 +10,6 @@ For more information, see:
 
 [http://root.cern](http://root.cern)
 
-The following people have contributed to this new version:
-
 The following people have contributed to this new version:
 
  Bertrand Bellenot, CERN/EP-SFT,\
@@ -66,8 +64,9 @@ Users are encouraged to export their models to ONNX and use the retained ONNX pa
 * The **RooStats::DebuggingSampler** and **RooStats::DebuggingTestStat** classes are removed. They were mock implementations of the `TestStatSampler` and `TestStatistic` interfaces that returned uniform random numbers independent of the data, only meant for debugging the RooStats framework itself during its initial development.
 * The `RooTrace` class is deprecated and will be removed in ROOT 6.44. It was a RooFit-specific memory tracer whose instrumentation hooks are compiled out by default, so it has been inert and untested for years. For memory debugging, please use general-purpose tools such as AddressSanitizer or Valgrind instead.
 * Support for the AIX operating system has been removed from the codebase. This support has not been tested since the late v5 releases and the LLVM JIT is not yet supporting AIX.
-* The headers Htypes.h and Gtypes.h that were deprecated in ROOT 6.20 will now emit warnings and will be fully removed in ROOT 6.44.
-* The header GLConstants.h is no longer part of ROOT installed headers.
+* The headers `Htypes.h` and `Gtypes.h` that were deprecated in ROOT 6.20 will now emit warnings and will be fully removed in ROOT 6.44.
+* The header `GLConstants.h` is no longer part of ROOT installed headers.
+* Including `RConfig.h` and `RVersion.h` is now deprecated and will be removed in 6.46, use instead `ROOT/RConfig.hxx` and `ROOT/RVersion.hxx`.
 
 ## Build System
 

@@ -13,9 +13,7 @@ module ROOT_Foundation_C  {
 // supposed to be textually expanded in each TU.
 module ROOT_Config  {
   // These headers are supposed to be only textually expanded for each TU.
-  module "RVersion.h" { textual header "RVersion.h" export * }
-  module "RConfig.h" { header "RConfig.h" export * }
-  module "ROOT/RConfig.h" { header "ROOT/RConfig.h" export * }
+  module "ROOT/RVersion.hxx" { textual header "ROOT/RVersion.hxx" export * }
   module "ROOT/RConfig.hxx" { textual header "ROOT/RConfig.hxx" export * }
   module "RConfigure.h" { textual header "RConfigure.h" export * }
   // FIXME: There is little benefit in keeping DllImport as a separate header.

@@ -13,12 +13,13 @@
 
 /*************************************************************************
  *                                                                       *
- * Old RConfig.h forwarding to ROOT/RConfig.hxx                            *
+ * Old RConfig.h forwarding to ROOT/RConfig.hxx                          *
  *                                                                       *
- * Please #include ROOT/RConfig.hxx instead, e.g. to avoid clashes with    *
+ * Please #include ROOT/RConfig.hxx instead, e.g. to avoid clashes with  *
  * R's Rconfig.h                                                         *
  *                                                                       *
  *************************************************************************/
+#warning "RConfig.h is deprecated and will be removed in a future release, please include ROOT/RConfig.hxx instead"
 
 #include <ROOT/RConfig.hxx>
 

@@ -125,7 +125,7 @@ friend TROOT *ROOT::Internal::GetROOT2();
    TString         fConfigFeatures;                   ///< ROOT ./configure detected build features
    TString         fVersion;                          ///< ROOT version as TString, example: 0.05.01
    Int_t           fVersionInt = 0;                   ///< ROOT version in integer format (501)
-   Int_t           fVersionCode = 0;                  ///< ROOT version code as used in RVersion.h
+   Int_t           fVersionCode = 0;                  ///< ROOT version code as used in ROOT/RVersion.hxx
    Int_t           fVersionDate = 0;                  ///< Date of ROOT version (ex 951226)
    Int_t           fVersionTime = 0;                  ///< Time of ROOT version (ex 1152)
    Int_t           fBuiltDate = 0;                    ///< Date of ROOT built

@@ -12,7 +12,7 @@
 #ifndef ROOT_TVersionCheck
 #define ROOT_TVersionCheck
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 /** \class TVersionCheck
 \ingroup Base

@@ -3101,7 +3101,7 @@ Int_t TROOT::ConvertVersionCode2Int(Int_t code)
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-/// Convert version as an integer to version code as used in RVersion.h.
+/// Convert version as an integer to version code as used in ROOT/RVersion.hxx.
 
 Int_t TROOT::ConvertVersionInt2Code(Int_t v)
 {
@@ -3112,7 +3112,7 @@ Int_t TROOT::ConvertVersionInt2Code(Int_t v)
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-/// Return ROOT version code as defined in RVersion.h.
+/// Return ROOT version code as defined in ROOT/RVersion.hxx.
 
 Int_t TROOT::RootVersionCode()
 {

@@ -2700,8 +2700,7 @@ static void R__WriteDependencyFile(const TString & build_loc, const TString &dep
    }
 #endif
    {
-      constexpr const char *dictHeaders[] = {"RVersion.h",
-                                             "ROOT/RConfig.hxx",
+      constexpr const char *dictHeaders[] = {"ROOT/RConfig.hxx",
                                              "TClass.h",
                                              "TDictAttributeMap.h",
                                              "TInterpreter.h",

@@ -20,6 +20,8 @@
  *                                                                       *
  *************************************************************************/
 
+#warning "RConfig.h is deprecated and will be removed in a future release, please include ROOT/RConfig.hxx instead"
+
 #include <ROOT/RConfig.hxx>
 
 #endif // ROOT_RConfig_fwd
@@ -19,7 +19,7 @@
  *                                                                       *
  *************************************************************************/
 
-#include "../RVersion.h"
+#include "RVersion.hxx"
 #include "RConfigure.h"
 
 

@@ -7,6 +7,9 @@
 #define ROOT_VERSION_PATCH 1 // When changing the version number here, never add leading zeroes!
 #define ROOT_RELEASE_DATE "Apr 23 2026"
 
+/* not updated anymore */
+#define ROOT_RELEASE_TIME "00:00:00"
+
 /* Don't change the lines below. */
 
 /*

@@ -1,8 +1,8 @@
 #ifndef ROOT_RVersion
 #define ROOT_RVersion
 
-#include "ROOT/RVersion.hxx"
+#warning "RVersion.h is deprecated and will be removed in a future release, please include ROOT/RVersion.hxx instead"
 
-#define ROOT_RELEASE_TIME "00:00:00" /* not updated anymore */
+#include "ROOT/RVersion.hxx"
 
 #endif
@@ -10,7 +10,7 @@
  *************************************************************************/
 
 #ifdef WIN32
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #include "strlcpy.h"
 #include <wincodec.h>
 #include <tchar.h>

@@ -156,7 +156,7 @@ INCLUDED in the methods provided by the base class TUnfold.
 #include <TMath.h>
 #include <TObjString.h>
 #include <TSortedList.h>
-#include <RVersion.h>
+#include <ROOT/RVersion.hxx>
 #include <cmath>
 
 #include "TUnfoldSys.h"

@@ -9,7 +9,7 @@
  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
  *************************************************************************/
 
-#include <ROOT/RConfig.h>
+#include <ROOT/RConfig.hxx>
 #include <ROOT/RRawFile.hxx>
 #ifdef _WIN32
 #include <ROOT/RRawFileWin.hxx>

@@ -19,7 +19,7 @@
 #include "TRandom3.h"
 #include "TMath.h"
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #include "RConfigure.h"
 
 //#define DEBUG

@@ -36,7 +36,7 @@ GITDATE="`cat etc/gitinfo.txt|tail -n1`"
 GITYEARCOMMA=`echo $GITDATE|cut -d' ' -f3`
 
 # Can't do that inside the .rc file: FILEVERSION doesn't evaluate a>>b
-VERSION=`grep "ROOT_RELEASE " include/RVersion.h | sed 's,^.*"\([^"]*\)".*$,\1,' | sed 's,[^[:digit:]], ,g'`
+VERSION=`grep "ROOT_RELEASE " include/ROOT/RVersion.hxx | sed 's,^.*"\([^"]*\)".*$,\1,' | sed 's,[^[:digit:]], ,g'`
 VER1=`echo $VERSION| cut -d ' ' -f 1| sed 's,^0,,'`
 VER2=`echo $VERSION| cut -d ' ' -f 2| sed 's,^0,,'`
 VER3=`echo $VERSION| cut -d ' ' -f 3| sed 's,^0,,'`

@@ -17,7 +17,7 @@
 #include <RooAbsReal.h>
 #include <RooFit/EvalContext.h>
 
-#include <RConfig.h>
+#include <ROOT/RConfig.hxx>
 
 #include <memory>
 

@@ -21,7 +21,7 @@
 #include "RooDirItem.h"
 #include "RooArgList.h"
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #include "TMatrixFfwd.h"
 #include "TMatrixDSym.h"
 #include "TList.h"

@@ -10,7 +10,7 @@
  * listed in LICENSE (http://roofit.sourceforge.net/license.txt)
  */
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 // #define private public
 // #include "Minuit2/Minuit2Minimizer.h"

@@ -17,7 +17,7 @@ This xRooNLLVar object has several special methods, e.g. for fitting and toy dat
 
  */
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 #if ROOT_VERSION_CODE < ROOT_VERSION(6, 27, 00)
 #define protected public

@@ -42,7 +42,7 @@ exploring the content are:
 
  */
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 #if ROOT_VERSION_CODE < ROOT_VERSION(6, 27, 00)
 

@@ -1,6 +1,6 @@
 #include <map>
 #include "MyTemplateTestClass.h"
-#include "RConfig.h"
+#include "ROOT/RConfig.hxx"
 
 void mapTest()
 {

@@ -1,7 +1,7 @@
 #ifndef VERSION_H
 #define VERSION_H
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #include "TFile.h"
 #include "TestOutput.h"
 

@@ -6,7 +6,7 @@ This test has been provided by Attila Krasznahorkay.
 #define DICTRULES_DICTSELECTION_H
 
 // Get the active ROOT version:
-#include <RVersion.h>
+#include <ROOT/RVersion.hxx>
 
 // Include the correct header:
 #if ROOT_VERSION_CODE < ROOT_VERSION( 5, 99, 00 )

@@ -48,7 +48,7 @@
 // Define a portable macro for c++11 in COOL (only for COOL290 and ROOT6!)
 #ifdef COOL290
 #if defined(__GXX_EXPERIMENTAL_CXX0X) || __cplusplus >= 201103L
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #if ROOT_VERSION_CODE >= ROOT_VERSION(5,99,0)
 #define COOL_HAS_CPP11 1
 #else

@@ -6,7 +6,7 @@
 #include "CoolKernel/VersionInfo.h"
 
 // Port to ROOT6 (bug #102630) - remove Reflex dependency
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 // Disable vector payload in PyCool for ROOT6 (workaround for bug #103017)
 //#if ROOT_VERSION_CODE >= ROOT_VERSION(5,99,0)

@@ -78,7 +78,7 @@
 //
 ////////////////////////////////////////////////////////////////////////
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 #include "TRandom.h"
 #include "TDirectory.h"
 #include "TProcessID.h"

@@ -23,7 +23,7 @@
 #include "TText.h"
 #include "TLegend.h"
 
-#include "RVersion.h"
+#include "ROOT/RVersion.hxx"
 
 namespace TMVA{
 

@@ -18,8 +18,8 @@
 #include <ROOT/RNTupleTypes.hxx>
 #include <ROOT/RNTupleUtils.hxx>
 #include <ROOT/BitUtils.hxx>
+#include <ROOT/RVersion.hxx>
 
-#include <RVersion.h>
 #include <TBufferFile.h>
 #include <TClass.h>
 #include <TList.h>

@@ -26,8 +26,8 @@
 #include <ROOT/RPagePool.hxx>
 #include <ROOT/RDaos.hxx>
 #include <ROOT/RPageStorageDaos.hxx>
+#include <ROOT/RVersion.hxx>
 
-#include <RVersion.h>
 #include <TError.h>
 
 #include <algorithm>

@@ -24,8 +24,8 @@
 #include <ROOT/RRawFileTFile.hxx>
 #include <ROOT/RNTupleTypes.hxx>
 #include <ROOT/RNTupleUtils.hxx>
+#include <ROOT/RVersion.hxx>
 
-#include <RVersion.h>
 #include <TDirectory.h>
 #include <TError.h>
 #include <TVirtualStreamerInfo.h>
-Original file line number
+Diff line change
@@ Expand Up / @@ -42,7 +42,7 @@ exploring the content are: @@
      */
-    #include "RVersion.h"
+    #include "ROOT/RVersion.hxx"
     #if ROOT_VERSION_CODE < ROOT_VERSION(6, 27, 00)
@@ Expand Down @@