Version compatibility

TRIQS version numbering

The TRIQS library has three-digit version numbers (e.g. 2.1.1) consisting of a Major, Minor and Patch version number.

The Patch Version Number denotes bug fixes and improvements that do not change the API of the library . In other words, applications based on the TRIQS library do not need to be changed between TRIQS library versions with identical Major and Minor version number (e.g. 2.1.0 and 2.1.3).

The Minor version number indicates deeper modification of the library with possible breaks of the API. These changes will often include new or adjusted library features. Applications may have to be adjusted accordingly.

The Major version number indicates a profound modification of the library. The changes can include major adjustments in the API. Most Applications will have to be ported to the new Major library versions.

For a summary of changes in the TRIQS library refer to the Changelog

TRIQS applications version numbering

In order to easily identify which versions of an application are compatible with given versions of TRIQS, the applications follow a similar version numbering: three-digit release numbers and two-digit version numbers. The compatibility rule is then simply that an application is compatible with the TRIQS library if it has the same Major and Minor version number.

How to determine the version of the installed TRIQS library

In order to determine the version of an installed TRIQS library, you can either:

• Read the content of the version.hpp file which is in the path_to_install_directory/include/triqs/ diretory.

• Run triqs and type the following commands:

  from triqs.version import *
  show_version()