Tag: linked-with-obsolete-library Severity: info Check: libraries/shared/obsolete Explanation: This tag is currently only issued for libcblas.so. For an explanation, please continue below. . The symbols in libcblas.so, which represent the CBLAS API, were merged into libblas.so. (Note the missing letter C.) Please use libblas.so instead. . The old library is still being shipped until all packages have modified their build systems, but it is not managed by update-alternatives and may result in poor performance. Please do not use it anymore. . Some packages may require functionality specific to Atlas3, which is not implemented by other BLAS/CBLAS alternatives. Please override the tag if your package falls into that category. See-Also: https://wiki.debian.org/DebianScience/LinearAlgebraLibraries , https://lists.debian.org/debian-devel/2019/10/msg00273.html , https://salsa.debian.org/science-team/lapack/-/blob/master/debian/README.if-you-look-for-libcblas.so.3