Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.58:
  - Added onnxruntime-1.1.1 to AthenaExternals;
  - Updates to CheckerGccPlugins for allowing thread-unsafe functions in certain situations without warnings;
  - Updated AtlasCMake/scripts/cmakeNightlyInstall.sh to know about the latest LCG repositories;
  - Suppressed a warning from Clang when generating dictionaries using Ninja as the build system;
  - Updated AthAnalysisExternals to use LCG_96b;
  - Updated all externals built by AnalysisBaseExternals to be in sync with the versions available in LCG_96b;
    * This included updating FastJet to version 3.3.2, which is used by most projects;
  - Reimplemented atlas_add_alias(...) to eliminate a dependency problem that it had;
  - Removed the build of FastJetContrib from all LCG based projects, and made all of them build a patched version of FastJet.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Updated AthAnalysisExternals to use LCG_96b;
    * Removed the build of Eigen, FastJet and FastJetContrib from the project as now "new enough" versions are coming from LCG_96b;
  - Updated all externals built by AnalysisBaseExternals to be in sync with the versions available in LCG_96b.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.57:
  - Various updates to make AnalysisBaseExternals behave correctly when built on macOS.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.56:
  - atlas_add_test(...) now always runs the post-processing script (if one is defined), even if the test executable failed;
  - Updates to CheckerGccPlugins;
  - atlas_generate_cliddb(...) no longer generates/uses a dummy_clid.db file;
  - atlas_project(...) now only calls FindDoxygen.cmake if absolutely necessary;
  - Fixed the patching of Acts when building the project with Clang;
  - Added pyAMI to the list of modules built by the PyModules package;
  - Added the AthGenerationExternals project to the master branch;
    * Updated the build configurations of FastJet(Contrib) and HepMCAnalysis to accommodate the "new" project.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.55:
  - Major updates in AtlasCMake and the project configurations for CMake 3.15+ compatibility;
  - Updated the repository to use FindPython.cmake instead of FindPythonInterp.cmake and FindPythonLibs.cmake everywhere;
  - Updated Findvalgrind.cmake to set up the correct PATH environment.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Re-organised AthGenerationExternals to take FastJet(Contrib) from LCG instead of building them itself;
  - Updated all the other projects to account for these code changes.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.54:
  - Updated FindPython.cmake not to use FORCESET during the Gaudi build.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.53:
  - Updated CheckerGccPlugins for GCC 10 compatibility;
  - Updated mergeConfdb2.py to handle gaudi handle properties correctly;
  - Marked the EXTRA_PATTERNS argument of atlas_add_test(...) deprecated;
  - Introduced FindPython.cmake into AtlasLCG;
  - Fixed a typo in the Acts build configuration.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Added FindVBFNLO.cmake to AtlasLCG.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.52:
  - Updated the environment setup script to be a bit leaner/faster;
  - Fixed how the OptDbg package builds would use the project's README.txt file;
  - Added FindVBFNLO.cmake to AtlasLCG.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.51:
  - Reverted a change to FindGaudi.cmake, which broke the RPM dependency setup for Gaudi.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.50:
  - Updated Acts to version 0.12.1 (fixing a bug with its setup.sh file).

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.49:
  - Updated Acts to version 0.12.0;
  - Fixed the unit test of flake8_atlas with Python 2;
  - Added support for handling/merging ConfDB2 files.

Tag to be used with the 21.X branches of atlas/athena.
Updates in this tag:
  - Updated to FastJetContrib 1.041;
  - Fixed the generation of CINT dictionaries with SIP enabled on macOS;
  - Added the nlohmann_json package for the analysis projects;
  - Made the nightly builds a bit more robust by making use of the "export sanitizers" in the external project builds.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.48:
  - Now building the GeoModelCore and GeoModelIO projects instead of the "old" GeoModelKernel;
  - Updated to FastJetContrib 1.041;
  - Implemented more explicit log filtering rules for atlas_add_test(...).

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.47:
  - Included some extra modules as dependencies for the flake8 build;
  - Implemented yet another fix for handling the CMake export sanitizers correctly in every project.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.46:
  - Updated all the project-specific cmake export filter scripts, so they would be installed correctly with their projects.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.45:
  - Added a thread safety fix/patch to the FastJet build;
  - Updated CheckerGccPlugins with some new features;
  - Added a missing "entrypoints" dependency to PyModules;
  - Re-introduced a default atlas_export_sanitizer.cmake.in script to AtlasCMake.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.44:
  - Introduced a fix for incremental builds of changes removing an __init__.py file from the project;
  - Made Findtdaq.cmake and Findtdaq-common.cmake use the TDAQ_PLATFORM (cache) variable consistently;
  - Tweaked the compilation settings to apply certain settings correctly when using Clang as the compiler;
  - Fixed the Gdb build against Python 3.

Tag to be used with the master branch of atlas/athena.
Update(s) since 2.0.43:
  - Updated the code to build AthenaExternals successfully using Clang 8 set up from /cvmfs/sft.cern.ch;
  - Updated the Gdb build to turn off the usage of makeinfo if the texinfo package was not installed on the build machine.