updated

   N is pre-release number

 One of these numbers will get bumped in each new release. The numbers to the

 right of a bumped number will be reset to zero. If Z is zero, it is not

 right of a bumped number will be reset to zero. If Z is zero, it may not be

 included in the version number. The pre release number is only included in

 pre releases (they're never used in public, official, releases).

 As a service to any application that might want to support new libcurl

 features while still being able to build with older versions, all releases

 have the libcurl version stored in the curl/curl.h file using a static

 have the libcurl version stored in the curl/curlver.h file using a static

 numbering scheme that can be used for comparison. The version number is

 defined as:

 This 6-digit hexadecimal number does not show pre-release number, and it is

 always a greater number in a more recent release. It makes comparisons with

 greater than and less than work.

 This number is also available as three separate defines:

 LIBCURL_VERSION_MAJOR, LIBCURL_VERSION_MINOR and LIBCURL_VERSION_PATCH.