Release 6.24/02 - 2021-06-29


This release contains crucial bug fixes, please upgrade! Notable are

  • improved scaling behavior of RDataFrame with high core counts (32+ cores),
  • fixed memory leaks and memory errors,
  • GCC11 fixes,
  • an issue opening remote files on some servers,
  • parsing of <boost/shared_ptr.hpp>,
  • several bug fixes in RooFit.

Release Notes

The release notes for this release can be found here.

Source distribution

Platform Files Size
source root_v6.24.02.source.tar.gz 177M

Binary distributions

Platform Files Size
CentOS 7 root_v6.24.02.Linux-centos7-x86_64-gcc4.8.tar.gz 183M
Fedora 32 root_v6.24.02.Linux-fedora32-x86_64-gcc10.2.tar.gz 265M
Ubuntu 16 root_v6.24.02.Linux-ubuntu16-x86_64-gcc5.4.tar.gz 196M
Ubuntu 18 root_v6.24.02.Linux-ubuntu18-x86_64-gcc7.5.tar.gz 256M
Ubuntu 20 root_v6.24.02.Linux-ubuntu20-x86_64-gcc9.3.tar.gz 254M
macOS 10.14 x86_64 Xcode 11 root_v6.24.02.macos-10.14-x86_64-clang110.pkg 326M
macOS 10.14 x86_64 Xcode 11 root_v6.24.02.macos-10.14-x86_64-clang110.tar.gz 210M
macOS 10.15 x86_64 Xcode 12 root_v6.24.02.macos-10.15-x86_64-clang120.pkg 320M
macOS 10.15 x86_64 Xcode 12 root_v6.24.02.macos-10.15-x86_64-clang120.tar.gz 207M
macOS 11.4 arm64 Xcode 12 curl -O 303M
macOS 11.4 arm64 Xcode 12 curl -O 194M
macOS 11.4 x86_64 Xcode 12 curl -O 318M
macOS 11.4 x86_64 Xcode 12 curl -O root_v6.24.02.macos-11.4-x86_64-clang120.tar.gz]( 206M
preview Windows Visual Studio 2019 (debug) root_v6.24.02.win32.vc16.debug.exe 160M
preview Windows Visual Studio 2019 (debug) 235M
preview Windows Visual Studio 2019 root_v6.24.02.win32.vc16.exe 86M
preview Windows Visual Studio 2019 116M

Installations in CVMFS

Standalone installations with minimal external dependencies are available at:


Example for setting up ROOT from CVMFS

. /cvmfs/


The entire ROOT source can be obtained from our public Git repository:

git clone

The release specific tag can be obtained using:

cd root
git checkout -b v6-24-02 v6-24-02


Windows 10/7/… are supported. We offer two packaging types:

  • exe: a regular Windows installer package also setting up the required environment variables. With uninstall via “Control Panel” / “Add or Remove Programs”. Simply download and start. You can double-click ROOT to run it; ROOT files get registered with Windows.
  • tar: unpack e.g. with 7zip. Start ROOT in a Microsoft Visual Studio Prompt (in Start / Programs / Microsoft Visual Studio / Tools). If you installed ROOT to C:\root then call C:\root\bin\thisroot.bat before using ROOT to set up required environment variables.

Important installation notes

  • You must download the binary built with the exact same version of Visual Studio than the one installed on your system.
  • Do not untar in a directory with a name containing blank characters.
  • Take the release version if performance matters.
  • If you want to debug your code you need the ROOT debug build (you cannot mix release / debug builds due to a Microsoft restriction).