Release 6.28/04 - 2023-05-07


Due to a security vulnerability, this version of ROOT has been retracted; please upgrade to v6.28/10.


This opatch release includes important improvements, including support for

  • GCC 13
  • Xcode 14
  • macOS 13.3

It also introduces preliminary, non-production support for C++20: please report any issues you see with ROOT while migrating your software to C++20, so we as a community can make progress quickly.

Release Notes

The release notes for this release can be found here.

Source distribution

Platform Files Size
source root_v6.28.04.source.tar.gz 177M

Binary distributions

Platform Files Size
CentOS 8 root_v6.28.04.Linux-centos8-x86_64-gcc8.5.tar.gz 225M
Fedora 36 root_v6.28.04.Linux-fedoraVERSION_ID=36-x86_64-gcc12.2.tar.gz 301M
Ubuntu 18.04 root_v6.28.04.Linux-ubuntu18-x86_64-gcc7.5.tar.gz 243M
Ubuntu 20.04 root_v6.28.04.Linux-ubuntu20-x86_64-gcc9.4.tar.gz 244M
Ubuntu 22.04 root_v6.28.04.Linux-ubuntu22-x86_64-gcc11.3.tar.gz 291M
macOS 11.7 arm64 Xcode 12 root_v6.28.04.macos-11.7-arm64-clang120.pkg 344M
macOS 11.7 arm64 Xcode 12 root_v6.28.04.macos-11.7-arm64-clang120.tar.gz 223M
macOS 11.7 x86_64 Xcode 12 root_v6.28.04.macos-11.7-x86_64-clang120.pkg 359M
macOS 11.7 x86_64 Xcode 12 root_v6.28.04.macos-11.7-x86_64-clang120.tar.gz 235M
macOS 12.6 arm64 Xcode 14 root_v6.28.04.macos-12.6-arm64-clang140.pkg 341M
macOS 12.6 arm64 Xcode 14 root_v6.28.04.macos-12.6-arm64-clang140.tar.gz 223M
macOS 12.6 x86_64 Xcode 14 root_v6.28.04.macos-12.6-x86_64-clang140.pkg 355M
macOS 12.6 x86_64 Xcode 14 root_v6.28.04.macos-12.6-x86_64-clang140.tar.gz 234M
macOS 13.3 arm64 Xcode 14 root_v6.28.04.macos-13.3-arm64-clang140.pkg 354M
macOS 13.3 arm64 Xcode 14 root_v6.28.04.macos-13.3-arm64-clang140.tar.gz 230M
macOS 13.3 x86_64 Xcode 14 root_v6.28.04.macos-13.3-x86_64-clang140.pkg 367M
macOS 13.3 x86_64 Xcode 14 root_v6.28.04.macos-13.3-x86_64-clang140.tar.gz 240M
Windows Visual Studio 2022 32-bit x86 (debug) root_v6.28.04.win32.vc17.debug.exe 233M
Windows Visual Studio 2022 32-bit x86 (debug) 352M
Windows Visual Studio 2022 32-bit x86 root_v6.28.04.win32.vc17.exe 120M
Windows Visual Studio 2022 32-bit x86 164M
Windows Visual Studio 2022 64-bit x64 root_v6.28.04.win64.vc17.exe 125M
Windows Visual Studio 2022 64-bit x64 172M

Installations in CVMFS

Standalone installations with minimal external dependencies are available at:



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 v6-28-04 v6-28-04


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).