Version Information
Get a human-readable string identifying the version of Botan. No particular format should be assumed.
Return the date this version of botan was released, in an integer of the form YYYYMMDD. For instance a version released on May 21, 2013 would return the integer 20130521. If the currently running version is not an official release, this function will return 0 instead.
Get the major version number.
Get the minor version number.
Get the patch number.
Compare using BOTAN_VERSION_CODE_FOR, as in static assert ( BOTAN_VERSION_CODE > BOTAN_VERSION_CODE_FOR(1,8,0), "Botan version too old");