Changes in version 2.6.4 (2026-02-09)                  

  - Fixed C++20 compilation errors with gcc 15 and clang 21 (stream
    extraction into char* removed in C++20)

                 Changes in version 2.6.3 (2025-05-12)                  

  - Fixed c code problem with gcc15

                 Changes in version 2.6.2 (2025-01-08)                  

  - Fixed links in some Rd files
  - Corrected an *** buffer overflow*** error flagged by one
    c-compilator