curl/RELEASE-NOTES

curl and libcurl 7.77.0

 Public curl releases:         200
 Command line options:         242
 curl_easy_setopt() options:   290
 Public functions in libcurl:  85
 Contributors:                 2397

This release includes the following changes:

 o configure: make the TLS library choice(s) explicit [3]
 o curl: ignore options asking for SSLv2 or SSLv3 [10]
 o hsts: enable by default [8]
 o SSL: support in-memory CA certs for some backends [85]
 o vtls: refuse setting any SSL version [9]

This release includes the following bugfixes:

 o build: fix compilation for Windows UWP platform [82]
 o c-hyper: don't write to set.writeheader if null [67]
 o c-hyper: fix handling of zero-byte chunk from hyper [39]
 o checksrc: complain on == NULL or != 0 checks in conditions [20]
 o cmake: check for getppid and utimes [87]
 o cmake: make libcurl output filename configurable [41]
 o configure: provide --with-openssl, deprecate --with-ssl [15]
 o connect: use CURL_SA_FAMILY_T for portability [34]
 o ConnectionExists: respect requests for h1 connections better
 o cookie: CURLOPT_COOKIEFILE set to NULL switches off cookies [1]
 o Curl_http_header: check for colon when matching Persistent-Auth [51]
 o Curl_http_input_auth: require valid separator after negotiation type [52]
 o Curl_input_digest: require space after Digest [50]
 o curl_mprintf.3: add description [73]
 o curl_setup: provide the shutdown flags wider [33]
 o curl_url_set.3: add memory management information [38]
 o CURLcode: add CURLE_SSL_CLIENTCERT [47]
 o CURLOPT_POSTFIELDS.3: clarify how it gets the size of the data [40]
 o docs/HTTP3.md: fix nghttp2's HTTP/3 server port [21]
 o docs: camelcase it like GitHub everywhere [62]
 o docs: fix typo in fail-with-body doc [63]
 o easy: ignore sigpipe in curl_easy_send [69]
 o FILEFORMAT: mention sectransp as a feature [89]
 o GnuTLS: don't allow TLS 1.3 for versions that don't support it [77]
 o gnutls: make setting only the MAX TLS allowed version work [83]
 o gskit: fix CURL_DISABLE_PROXY build [57]
 o gskit: fix undefined reference to 'conn' [58]
 o http2: call the handle-closed function correctly on closed stream [37]
 o http2: fix a resource leak in push_promise() [54]
 o http2: fix resource leaks in set_transfer_url() [55]
 o http2: move the stream error field to the per-transfer storage [36]
 o http: fix the check for 'Authorization' with Bearer [53]
 o http: reset the header buffer when sending the request [61]
 o INSTALL: add IBM i specific quirks [75]
 o krb5/name_to_level: replace checkprefix with curl_strequal [49]
 o krb5: don't use 'static' to store PBSZ size response [23]
 o krb5: remove the unused 'overhead' function [35]
 o lib1564.c: enable last wakeup test part on Windows [26]
 o lib: fix 0-length Curl_client_write calls [60]
 o lib: fix some misuse of curlx_convert_UTF8_to_tchar [64]
 o libcurl-security.3: be careful of setuid [66]
 o libcurl-security.3: don't try to filter IPv4 hosts based on the URL [71]
 o libcurl.3: mention the URL API [76]
 o libssh2: fix Value stored to 'sshp' is never read [13]
 o libssh2: ignore timeout during disconnect [45]
 o libssh: fix "empty expression statement has no effect" warnings [7]
 o libtest: remove lib530.c [88]
 o m4: add security frameworks on Mac when compiling rustls [31]
 o multi: don't close connection HTTP_1_1_REQUIRED
 o multi: fix slow write/upload performance on Windows [27]
 o multi: reduce Win32 API calls to improve performance [28]
 o ngtcp2: fix the cb_acked_stream_data_offset proto [46]
 o NSS: add ciphers to map [30]
 o nss_set_blocking: avoid static for sock_opt [72]
 o ntlm: precaution against super huge type2 offsets [65]
 o openldap: protect SSL-specific code with proper #ifdef [12]
 o openldap: replace ldap_ prefix on private functions [84]
 o openssl: fix build error with OpenSSL < 1.0.2 [4]
 o os400: additional support for options metadata [24]
 o progress: when possible, calculate transfer speeds with microseconds [48]
 o README.md: delete Codacy UTM parameters [5]
 o Revert "Revert 'multi: implement wait using winsock events'" [26]
 o rustls: only return CURLE_AGAIN when TLS session is fully drained [2]
 o rustls: use ALPN [56]
 o schannel: Disable auto credentials; add an option to enable it [18]
 o schannel: Support strong crypto option [44]
 o sectransp: allow cipher name to be specified [29]
 o sigpipe: ignore SIGPIPE when using wolfSSL as well [70]
 o sockfilt: avoid getting stuck waiting for writable socket [80]
 o sockfilt: fix invalid increment of handles index variable nfd [79]
 o sws: #ifdef S_IFSOCK use [32]
 o test server: take care of siginterrupt() deprecation [25]
 o tests/disable-scan.pl: also scan all m4 files [17]
 o tests: ignore case of chunked hex numbers in tests [86]
 o tls: add USE_HTTP2 define [59]
 o tool_getparam: handle failure of curlx_convert_tchar_to_UTF8() [78]
 o tool_getparam: replace (in-place) '%20' by '+' according to RFC1866 [14]
 o tool_operate: don't discard failed parallel transfer result [16]
 o tool_writeout: fix the HTTP_CODE json output [11]
 o URL-SYNTAX: update IDNA section for WHATWG spec changes [74]
 o urlapi: "normalize" numerical IPv4 host names [6]
 o vauth: factor base64 conversions out of authentication procedures [22]
 o version: add gsasl_version to curl_version_info_data [43]
 o vtls: deduplicate some DISABLE_PROXY ifdefs [19]
 o vtls: reset ssl use flag upon negotiation failure [42]
 o wolfssl: handle SSL_write() returns 0 for error [68]

This release includes the following known bugs:

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

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

  3eka on github, Ayushman Singh Chauhan, Benjamin Riefenstahl, Blake Burkhart,
  Calvin Buckley, Dan Fandrich, Daniel Carpenter, Daniel Stenberg, David Cook,
  Dmitry Karpov, Dmitry Kostjuchenko, ebejan on github, Emil Engler,
  Georeth Zhou, Gergely Nagy, Gilles Vollant, Harry Sintonen, Illarion Taev,
  Jacob Hoffman-Andrews, Jakub Zakrzewski, Javier Blazquez, J. Bromley,
  Jeroen Ooms, Johann150 on github, Jon Rumsey, Kamil Dudka, Kevin Burke,
  Kevin R. Bulgrien, Lucas Servén Marín, MAntoniak on github, Marcel Raad,
  Marc Hörsken, Martin Halle, Max Dymond, Michael Kolechkin, Michał Antoniak,
  Michal Rus, Morten Minde Neergaard, Patrick Monnerat, Pontus Lundkvist,
  Ralph Langendam, Ray Satiro, rcombs on github, Rich FitzJohn,
  sergio-nsk on github, Stefan Karpinski, Timo Lange, Timothy Gu,
  tmkk on github, Tobias Gabriel, Tommy Odom, Travis Burtrum on github,
  Tuomas Siipola, Victor Vieux, Viktor Szakats, Wes Hinsley, Yusuke Nakamura,
  (57 contributors)

References to bug reports and discussions on issues:

 [1] = https://curl.se/bug/?i=6889
 [2] = https://curl.se/bug/?i=6894
 [3] = https://curl.se/bug/?i=6897
 [4] = https://curl.se/bug/?i=6920
 [5] = https://curl.se/bug/?i=6919
 [6] = https://curl.se/bug/?i=6863
 [7] = https://curl.se/bug/?i=6847
 [8] = https://curl.se/bug/?i=6700
 [9] = https://curl.se/bug/?i=6773
 [10] = https://curl.se/bug/?i=6772
 [11] = https://curl.se/bug/?i=6905
 [12] = https://curl.se/bug/?i=6901
 [13] = https://curl.se/bug/?i=6900
 [14] = https://curl.se/bug/?i=6895
 [15] = https://curl.se/bug/?i=6887
 [16] = https://curl.se/bug/?i=6921
 [17] = https://curl.se/bug/?i=1165
 [18] = https://curl.se/bug/?i=2262
 [19] = https://curl.se/bug/?i=6660
 [20] = https://curl.se/bug/?i=6912
 [21] = https://curl.se/bug/?i=6964
 [22] = https://curl.se/bug/?i=6654
 [23] = https://curl.se/bug/?i=6963
 [24] = https://curl.se/bug/?i=6574
 [25] = https://curl.se/bug/?i=6529
 [26] = https://curl.se/bug/?i=6245
 [27] = https://curl.se/bug/?i=6146
 [28] = https://curl.se/bug/?i=6146
 [29] = https://curl.se/bug/?i=6464
 [30] = https://curl.se/bug/?i=6670
 [31] = https://curl.se/bug/?i=6955
 [32] = https://curl.se/mail/lib-2021-04/0074.html
 [33] = https://curl.se/mail/lib-2021-04/0073.html
 [34] = https://curl.se/mail/lib-2021-04/0071.html
 [35] = https://curl.se/bug/?i=6947
 [36] = https://curl.se/bug/?i=6910
 [37] = https://curl.se/bug/?i=6862
 [38] = https://curl.se/bug/?i=6953
 [39] = https://curl.se/bug/?i=6951
 [40] = https://curl.se/bug/?i=6943
 [41] = https://curl.se/bug/?i=6933
 [42] = https://curl.se/bug/?i=6934
 [43] = https://curl.se/bug/?i=6843
 [44] = https://curl.se/bug/?i=6734
 [45] = https://curl.se/bug/?i=6990
 [46] = https://curl.se/mail/lib-2021-05/0019.html
 [47] = https://curl.se/bug/?i=6721
 [48] = https://curl.se/bug/?i=7017
 [49] = https://curl.se/bug/?i=6993
 [50] = https://curl.se/bug/?i=6993
 [51] = https://curl.se/bug/?i=6993
 [52] = https://curl.se/bug/?i=6993
 [53] = https://curl.se/bug/?i=6988
 [54] = https://curl.se/bug/?i=6986
 [55] = https://curl.se/bug/?i=6986
 [56] = https://curl.se/bug/?i=6960
 [57] = https://curl.se/bug/?i=6981
 [58] = https://curl.se/bug/?i=6980
 [59] = https://curl.se/bug/?i=6959
 [60] = https://curl.se/bug/?i=6954
 [61] = https://curl.se/bug/?i=7018
 [62] = https://curl.se/bug/?i=6979
 [63] = https://curl.se/bug/?i=6977
 [64] = https://github.com/curl/curl/pull/6602#issuecomment-825236763
 [65] = https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33720
 [66] = https://curl.se/bug/?i=6970
 [67] = https://curl.se/bug/?i=6619
 [68] = https://curl.se/bug/?i=6967
 [69] = https://curl.se/bug/?i=6965
 [70] = https://curl.se/bug/?i=6966
 [71] = https://curl.se/bug/?i=6942
 [72] = https://curl.se/bug/?i=6945
 [73] = https://curl.se/bug/?i=7010
 [74] = https://curl.se/bug/?i=7026
 [75] = https://curl.se/bug/?i=6830
 [76] = https://curl.se/bug/?i=7009
 [77] = https://curl.se/bug/?i=7014
 [78] = https://curl.se/bug/?i=7023
 [79] = https://curl.se/bug/?i=6992
 [80] = https://curl.se/bug/?i=6992
 [82] = https://curl.se/bug/?i=7006
 [83] = https://curl.se/bug/?i=6998
 [84] = https://curl.se/bug/?i=7004
 [85] = https://curl.se/bug/?i=6662
 [86] = https://curl.se/bug/?i=6987
 [87] = https://curl.se/bug/?i=6997
 [88] = https://curl.se/bug/?i=6999
 [89] = https://curl.se/bug/?i=7001