Translations:Upgrading GCC/20/en

An ABI, or Application Binary Interface, is a set of conventions used by all tools that deal with binary representation of programs, including compilers, assemblers, linkers and language runtime support (source: GCC Binary Compatibility). When the ABI used for binary applications and libraries is changed, you will risk getting linker errors or malfunctioning programs unless you rebuild all libraries that use C++ code. Yes, C++, since most incompatibilities occur within the C++ ABI. This is also why we use the revdep-rebuild command against the library.