Changes in version 1.6.0 (2023-09-25)                  

    o   Windows: update to protobuf 21.12

                 Changes in version 1.5.0 (2023-01-29)                  

    o   Windows: upgrade to libprotobuf 3.19.4

    o   No longer force CXX11 (use local C++ default std)

                 Changes in version 1.4.4 (2022-10-22)                  

    o   Compile with CXX17 if available (needed for recent libprotobuf)

                 Changes in version 1.4.3 (2022-10-07)                  

    o   Update libcld3 from upstream (fixes CRAN compiler warning)

                 Changes in version 1.4.2 (2021-07-28)                  

    o   Windows: fix rwinlib ucrt libs

                 Changes in version 1.4.1 (2021-01-11)                  

    o   Fix typo in configure script

                         Changes in version 1.4                         

    o   Use CXX11 in configure script, needed by protobuf 3.14

    o   Do not use bash in configure script

                  Changes in version 1.3 (2020-01-31)                   

    o   Fix for CRAN: do not use CXXCPP

                  Changes in version 1.2 (2019-07-18)                   

    o   Windows: update to protobuf 3.8.0 with support for GCC 8+

    o   Suppress warnings about pragmas in autogenerated protobuf headers

                  Changes in version 1.1 (2018-06-28)                   

    o   Windows: update to protobuf 3.5.1 (to support gcc 8.1.0 toolchain)