curl and libcurl 7.72.0

 Public curl releases:         193
 Command line options:         232
 curl_easy_setopt() options:   277
 Public functions in libcurl:  82
 Contributors:                 2214


This release includes the following changes:

 o content_encoding: add zstd decoding support [1]

This release includes the following bugfixes:

 o bearssl: fix build with disabled proxy support [16]
 o cirrus-ci: upgrade 11-STABLE to 11.4 [2]
 o cmake: fix windows xp build [13]
 o configure.ac: Sort features name in summary [6]
 o curl_version_info.3: CURL_VERSION_KERBEROS4 is deprecated [9]
 o CURLINFO_CERTINFO.3: fix typo [3]
 o ftpserver: don't verify SMTP MAIL FROM names [8]
 o gnutls: repair the build with `CURL_DISABLE_PROXY` [5]
 o http2: close the http2 connection when no more requests may be sent [7]
 o http2: fix nghttp2_strerror -> nghttp2_http2_strerror in debug messages [11]
 o ngtcp2: update to modified qlog callback prototype [14]
 o tool_getparam: make --krb option work again [10]
 o transfer: fix memory-leak with CURLOPT_CURLU in a duped handle [15]
 o url: silence MSVC warning [12]

This release includes the following known bugs:

 o see docs/KNOWN_BUGS (https://curl.haxx.se/docs/knownbugs.html)

This release would not have looked like this without help, code, reports and
advice from friends like these:

  Alex Kiernan, Baruch Siach, Carlo Marcelo Arenas Belón, Daniel Stenberg,
  Filip Salomonsson, Gilles Vollant, Jeremy Maitin-Shepard, Kamil Dudka,
  Laramie Leavitt, Marcel Raad, Matthias Naegler, Nicolas Sterchele,
  NobodyXu on github, Peter Wu, Ray Satiro, Viktor Szakats,
  (16 contributors)

        Thanks! (and sorry if I forgot to mention someone)

References to bug reports and discussions on issues:

 [1] = https://curl.haxx.se/bug/?i=5453
 [2] = https://curl.haxx.se/bug/?i=5668
 [3] = https://curl.haxx.se/bug/?i=5655
 [5] = https://curl.haxx.se/bug/?i=5645
 [6] = https://curl.haxx.se/bug/?i=5656
 [7] = https://curl.haxx.se/bug/?i=5643
 [8] = https://curl.haxx.se/bug/?i=5639
 [9] = https://curl.haxx.se/bug/?i=5642
 [10] = https://bugzilla.redhat.com/1833193
 [11] = https://curl.haxx.se/bug/?i=5641
 [12] = https://curl.haxx.se/bug/?i=5638
 [13] = https://curl.haxx.se/bug/?i=5662
 [14] = https://curl.haxx.se/bug/?i=5675
 [15] = https://curl.haxx.se/bug/?i=5665
 [16] = https://curl.haxx.se/bug/?i=5666