The following preprocessor macros can be used to perform various checks based on the version of the

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1.30.4                                            Jun 08, 2025                                 MONGOC_VERSION(3)

       The  following  preprocessor  macros  can  be  used to perform various checks based on the version of the
       library you are compiling against.  This may be useful if you only want to enable a feature on a  certain
       version of the library.

          #include <mongoc/mongoc.h>

          #define MONGOC_MAJOR_VERSION (x)
          #define MONGOC_MINOR_VERSION (y)
          #define MONGOC_MICRO_VERSION (z)
          #define MONGOC_VERSION_S     "x.y.z"
          #define MONGOC_VERSION_HEX   ((1 << 24) | (0 << 16) | (0 << 8) | 0)
          #define MONGOC_CHECK_VERSION(major, minor, micro)

       Only compile a block on MongoDB C Driver 1.1.0 and newer.

          #if MONGOC_CHECK_VERSION(1, 1, 0)
          static void
          do_something (void)
          {
          }
          #endif