Changelog for gcc-toolset-9-gcc-9.2.1-2.3.el8.x86_64.rpm :

* Tue Jul 14 2020 Marek Polacek 9.2.1-2.3- remove a few
*codecvt_utf8
* symbols from gcc9-libstdc++-compat
* Wed Nov 27 2019 Marek Polacek 9.2.1-2.2- fix offload-nvptx requires
* Mon Nov 25 2019 Marek Polacek 9.2.1-2.1- add offload-nvptx (#1698607)
* Thu Nov 21 2019 Marek Polacek 9.2.1-2- update from Fedora gcc-9.2.1-2 (#1747158)- fix ABI change in deque iterators (PR libstdc++/92267)- fix up sink select_best_block (PR tree-optimization/91355)- revert PR tree-optimization/91790 fix- allow MODE_PARTIAL_INT modes for integer constant input operands (PR other/92090)- fix adjust_unroll_factor (PR middle-end/90796)- fixes for SVE Vector PCS on AArch64: emit .variant_pcs for aarch64_vector_pcs symbol references (#1726641)
* Tue Sep 24 2019 Marek Polacek 9.1.1-2.4- drop libtsan and liblsan (#1729402)
* Tue Aug 27 2019 Marek Polacek 9.1.1-2.3- require binutils >= 2.31 so that gcc supports -mpltseq (#1744988)
* Mon Jul 22 2019 Marek Polacek 9.1.1-2.2- small fixes for the Fortran patches (#1722881)
* Sun Jul 21 2019 Marek Polacek 9.1.1-2.1- add Obsoletes for libasan5 and libubsan1 on RHEL 8 (#1722892)
* Fri Jul 19 2019 Marek Polacek 9.1.1-2- update from Fedora 9.1.1-2 (#1728745)- apply Fortran patches (#1722881)- do not include libasan5 and libubsan1 on RHEL 8 and use the system version (#1722892)
* Tue Jun 04 2019 Marek Polacek 9.1.1-1- new package