Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Fixed the standalone build of Boost (in C++17 mode) on macOS with Clang;
  - Added FindTIFF.cmake, FindNjet.cmake and FindOpenLoops.cmake to AtlasLCG.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.35:
  - Added the ability to run checks on the (installed) python files of packages;
  - Added FindTIFF.cmake to AtlasLCG.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.34:
  - Updated to Acts v0.10.1;
  - Small update in Findmccabe.cmake to make it more future proof;
  - Multiple updates from 1.0.X that were necessary for AnalysisBaseExternals and AthAnalysisExternals with GCC 8 on CentOS 7.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Taught AnalysisBaseExternals not to pick up python from /bin by default;
  - Taught AtlasLCG not to consider /bin and /lib when locally installed packages should not be used.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Updated AtlasLCG and AtlasCMake to use C++17 for GCC >=7;
  - Updated XRootD, KLFitter and BAT to build successfully with GCC 8 in C++17 mode;
  - Turned off the build of CheckerGccPlugins with GCC >=7;
  - Fixed a mistake in the CLHEP build that caused a build error with new CMake versions;
  - Updated FindGaudi.cmake to behave just a little bit better than it did before.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.33:
  - Further dependency fixes for the PyModules package, adding mccabe and backports as explicit dependencies for it.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.32:
  - Added a find-module for the functools32 python module/package;
  - Extended PyModules to explicitly declare all the python modules that it depends on from LCG.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.31:
  - Added PyModules and flake8_atlas to the AthSimulationExternals project.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.30:
  - Updated the PyModules package to use pip for installing flake8;
  - Introduced the flake8_atlas package;
  - Added a find-module for the futures python package;
  - Made a number of updates in AnalysisBaseExternals to make it build with GCC 8 in C++17 mode.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Updated KLFitter to version 1.3.2;
  - Added the correct LHAPATH from CVMFS to the environment;
  - Added extra find-modules for setting up python packages from LCG_95;
  - Updated lwtnn to version 2.9.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.29:
  - Fixed the dependency setup of the CINT dictionary generation to watch for changes in the used header files.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.28:
  - Added the PyModules package to build python modules needed by the Athena project;
  - Updated KLFitter to version 1.3.2;
  - Various updates to CheckerGccPlugins;
  - Updated Acts to version 0.9.2;
  - Added find-modules for pandas and sqlalchemy in AtlasLCG.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Backported the CMake 3.13 updates from the master branch;
  - Backported AtlasLCG changes necessary for LCG_95;
  - Updated lwtnn to version 2.8.1;
  - Taught AtlasCMake to remove stale .pyc files in incremental builds;
  - Updated AnalysisBaseExternals and AthAnalysisExternals to use LCG_95.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.27:
  - A *lot* of updates in AtlasCMake. Tried to clean up the code in a lot of different ways;
  - Updated all LCG based projects to use LCG_95 by default;
  - Updated all "standalone externals" to be in sync with their LCG_95 versions.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.26:
  - Made CheckerGccPlugins only work with GCC 8, and implemented a new fix for one of its checks;
  - Updated to lwtnn 2.8.1;
  - Updated to Acts 0.8.2;
  - Added prmon to AthSimulationExternals and AthDerivationExternals;
  - Taught the CMake configuration step clean out any stale .pyc files from the build directory, whose .py files have been removed from the source.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Added FindHJets.cmake for finding the HJets generator;
  - Fixed the generation of .d files for Ninja, to make dictionary generation behave correctly with this build tool;
  - Added some extra find-modules to AtlasLCG;
  - Stopped setting up the Cairo and Pango packages when using graphviz.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.25:
  - Added FindHJets.cmake for finding the HJets generator;
  - Added prmon as a new external to AthenaExternals;
  - Fixed the generation of .d files for Ninja, to make dictionary generation behave correctly with this build tool;
  - Updated FindQt5.cmake to both fix a bug in it, and to make it create "simple" variables for the include directories and linked libraries to use.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.24:
  - Added Findcx_Oracle.cmake, Finddecorator.cmake and Findpyxml.cmake, as these LCG python packages are used without explicit declarations in some Athena packages.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.23:
  - Updated CheckerGccPlugins to ignore the usage of gSystem;
  - Fixed the setup of QT5_LIBRARY_DIRS in FindQt5.cmake;
  - Stopped setting up the Cairo and Pango packages when using graphviz.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.22:
  - Updated CheckerGccPlugins;
  - Update to CLHEP to CLHEP_2_4_0_1_atl02 to fix the bug reported in CLHEP-154;
  - Updated AtlasCMake/AtlasLCG to use C++17 by default, with all compilers;
  - Added nlohmann_parser as a new external;
  - Added VP1LightExternals, with some new external packages;
  - Updated AtlasLCG to provide find-modules for all the new python modules/externals introduced with LCG_95.