+ CURLINFO_HTTP_VERSION (Rudi Grinberg)
+ CURLOPT_XFERINFOFUNCTION
+ alternative READFUNCTION2/WRITEFUNCTION2 with an ability to pause transfer
* fix READFUNCTION deadlock on exception
+ CURLMOPT_MAX_TOTAL_CONNECTIONS (Nicolas Ojeda Bar)
* configure: allow setting CURLCFLAGS, CURLLIBS, LIBCURL_VERSION (Nicolas Ojeda Bar)
+ CURLOPT_TCP_FASTOPEN (Daniel Woelfel)
+ Add support for MultiSSL mode (Nicolas Ojeda Bar)
+ CURLOPT_DOH_URL (Daniel Woelfel)
+ Curl.Multi.poll (Romain Beauxis)
+ CURLOPT_BUFFERSIZE (Daniel Woelfel)
+ CURLINFO_ACTIVESOCKET (Romain Beauxis)
* Multi: more useful errors
+ Make it possible to add a name to a MIME part (Bertrand Bonnefoy-Claudet)
