curl and libcurl 7.81.0

 Public curl releases:         205
 Command line options:         244
 curl_easy_setopt() options:   295
 Public functions in libcurl:  86
 Contributors:                 2558

This release includes the following changes:

 o mime: use percent-escaping for multipart form field and file names [1]

This release includes the following bugfixes:

 o asyn-ares: ares_getaddrinfo needs no happy eyeballs timer [73]
 o azure: make the "w/o HTTP/SMTP/IMAP" build disable SSL proper [12]
 o BINDINGS: add cURL client for PostgreSQL [68]
 o BINDINGS: add one from Everything curl and update a link
 o checksrc: detect more kinds of NULL comparisons we avoid [105]
 o CI: build examples for additional code verification [75]
 o CI: bump job to use mbedtls 3.1.0 [90]
 o cmake: don't set _USRDLL on a static Windows build [22]
 o cmake: prevent dev warning due to mismatched arg [94]
 o cmake: private identifiers use CURL_ instead of CMAKE_ prefix [40]
 o config.d: update documentation to match the path search
 o configure: add -lm to configure for rustls build. [13]
 o configure: better diagnostics if hyper is built wrong [6]
 o configure: don't enable TLS when --without-* flags are used [17]
 o configure: fix runtime-lib detection on macOS [21]
 o curl.1: require "see also" for every documented option [27]
 o curl: improve error message for --head with -J [42]
 o curl_easy_cleanup.3: remove from multi handle first [3]
 o curl_easy_escape.3: call curl_easy_cleanup in example [58]
 o curl_easy_unescape.3: call curl_easy_cleanup in example [57]
 o curl_multi_init.3: fix EXAMPLE formatting
 o curl_multi_perform/socket_action.3: clarify what errors mean [70]
 o curl_share_setopt.3: split out options into their own manpages [14]
 o CURLOPT_STDERR.3: does not work with libcurl as a win32 DLL [51]
 o digest: compute user:realm:pass digest w/o userhash [45]
 o docs/checksrc: Add documentation for STRERROR [18]
 o docs/cmdline-opts: do not say "protocols: all" [26]
 o docs/examples: workaround broken -Wno-pedantic-ms-format
 o docs/HTTP3: describe how to setup a h3 reverse-proxy for testing [88]
 o docs/INSTALL.md: typo fix : added missing "get" verb [31]
 o docs/URL-SYNTAX.md: space is not fine in a given URL
 o docs: add known bugs list to HTTP3.md [83]
 o docs: address proselint nits [16]
 o docs: consistent manpage SYNOPSIS [47]
 o docs: fix dead links, remove ECH.md
 o docs: fix typo in OpenSSL 3 build instructions [80]
 o docs: Update the Reducing Size section
 o example/progressfunc: remove code for old libcurls [78]
 o examples/multi-single.c: remove WAITMS() [98]
 o FAQ: typo fix : "yout" ➤ "your" [30]
 o ftp: disable warning 4706 in MSVC [85]
 o gen.pl: improve example output format [29]
 o github workflow: add wolfssl (removed from zuul) [103]
 o github/workflows: add mbedtls and mbedtls-clang (removed from zuul) [92]
 o gtls: check return code for gnutls_alpn_set_protocols [86]
 o hash: lazy-alloc the table in Curl_hash_add() [54]
 o http2:set_transfer_url() return early on OOM [53]
 o HTTP3: update quiche build instructions [37]
 o http: enable haproxy support for hyper backend [20]
 o http: Fix CURLOPT_HTTP200ALIASES [89]
 o http_proxy: don't close the socket (too early) [100]
 o insecure.d: detail its use for SFTP and SCP as well [32]
 o insecure.d: expand and clarify [28]
 o libcurl-multi.3: "SOCKS proxy handshakes" are not blocking
 o libcurl-security.3: mention address and URL mitigations
 o libssh2: fix error message for sha256 mismatch
 o libtest: avoid "assignment within conditional expression" [84]
 o lift: ignore is a deprecated config option, use ignoreRules [35]
 o linkcheck.yml: add CI job that checks markdown links [82]
 o m4/curl-compilers: tell clang -Wno-pointer-bool-conversion [99]
 o Makefile.m32: rename -winssl option to -schannel and tidy up [33]
 o mbedTLS: add support for CURLOPT_CAINFO_BLOB [44]
 o mbedtls: fix CURLOPT_SSLCERT_BLOB [72]
 o mbedtls: fix private member designations for v3.1.0 [93]
 o misc: remove unused doh flags when CURL_DISABLE_DOH is defined [71]
 o misc: s/e-mail/email [74]
 o multi: cleanup the socket hash when destroying it [55]
 o multi: handle errors returned from socket/timer callbacks [52]
 o multi: shut down CONNECT in Curl_detach_connnection [2]
 o netrc.d: edit the .netrc example to look nicer [24]
 o ngtcp2: verify the server cert on connect (quictls) [102]
 o ngtcp2: verify the server certificate for the gnutls case [101]
 o nss:set_cipher don't clobber the cipher list [38]
 o openldap: implement STARTTLS [56]
 o openldap: process search query response messages one by one [50]
 o openldap: several minor improvements [69]
 o openldap: simplify ldif generation code [77]
 o openssl: check the return value of BIO_new() [43]
 o openssl: define HAVE_OPENSSL_VERSION for OpenSSL 1.1.0+
 o openssl: remove `RSA_METHOD_FLAG_NO_CHECK` handling if unavailable
 o openssl: remove usage of deprecated `SSL_get_peer_certificate`
 o openssl: use non-deprecated API to read key parameters
 o page-footer: add a mention of how to report bugs to the man page
 o page-footer: document more environment variables [23]
 o request.d: refer to 'method' rather than 'command' [59]
 o retry-all-errors.d: make the example complete
 o runtests: make the SSH library a testable feature
 o rustls: read of zero bytes might be okay [9]
 o rustls: remove comment about checking handshaking [15]
 o rustls: remove incorrect EOF check [10]
 o sha256/md5: return errors when init fails [79]
 o socks5: use appropriate ATYP for numerical IP address host names [91]
 o test1156: enable for hyper [65]
 o test1156: fixup the stdout check for Windows [60]
 o test1525: tweaked for hyper [64]
 o test1526: enable for hyper [63]
 o test1527: enable for hyper [62]
 o test1528: enable for hyper [61]
 o test1554: adjust for hyper [49]
 o test1556: adjust for hyper [48]
 o test302[12]: run only with the libssh2 backend [8]
 o test661: enable for hyper [66]
 o tests/CI.md: add more information on CI environments [39]
 o tests/data/test302[12]: fix MSYS2 path conversion of hostpubsha256 [76]
 o tftp: mark protocol as not possible to do over CONNECT [25]
 o tool_findfile: updated search for a file in the homedir [46]
 o tool_operate: only set SSH related libcurl options for SSH URLs [11]
 o tool_operate: warn if too many output arguments were found [87]
 o url.c: fix the SIGPIPE comment for Curl_close [4]
 o url: check ssl_config when re-use proxy connection [81]
 o url: reduce ssl backend count for CURL_DISABLE_PROXY builds [96]
 o urlapi: accept port number zero [34]
 o urlapi: if possible, shorten given numerical IPv6 addresses [95]
 o urlapi: provide more detailed return codes [36]
 o urlapi: reject short file URLs [41]
 o version_win32: Check build number and platform id
 o vtls/rustls: adapt to the updated rustls_version proto [19]
 o writeout: fix %{http_version} for HTTP/3 [7]
 o x509asn1: return early on errors [67]
 o zuul.d: update rustls-ffi to version 0.8.2 [5]
 o zuul: fix quiche build pointing to wrong Cargo [104]

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:

  Alessandro Ghedini, Bernat Mut, Bernhard Walle, Boris Rasin,
  Brad Fitzpatrick, Bruno Baguette, Damien Walsh, Dan Fandrich,
  Daniel Stenberg, David Bohman, Don J Olmstead, Eric Musser, Even Rouault,
  Florian Van Heghe, gclinch on github, Glenn Strauss, Jacob Hoffman-Andrews,
  James Fuller, Jeff Luszcz, jeffrson on github, Jun Tseng, Kevin Burke,
  Leszek Kubik, lllaffer on github, Marcelo Juchem, Marcel Raad, Marc Hörsken,
  Mark Dodgson, Matt Holt, Melroy van den Berg, Michał Antoniak,
  Nicolas Sterchele, nimaje on github, Patrick Monnerat, Paul Howarth,
  Peter Piekarski, Ray Satiro, RekGRpth on github, Rikard Falkeborn,
  Ryan Sleevi, Stan Hu, Stefan Eissing, Stefan Huber, Stephane Pellegrino,
  Stephen M. Coakley, Tobias Nießen, Valentin Richter, Viktor Szakats,
  Vincent Grande, Vladimir Panteleev, Wyatt O'Day, x2018 on github,
  Yongkang Huang,
  (53 contributors)

References to bug reports and discussions on issues:

 [1] = https://curl.se/bug/?i=7789
 [2] = https://curl.se/bug/?i=7982
 [3] = https://curl.se/bug/?i=7983
 [4] = https://curl.se/bug/?i=7984
 [5] = https://curl.se/bug/?i=8013
 [6] = https://curl.se/bug/?i=8001
 [7] = https://curl.se/bug/?i=8072
 [8] = https://curl.se/bug/?i=8009
 [9] = https://curl.se/bug/?i=8003
 [10] = https://curl.se/bug/?i=8003
 [11] = https://curl.se/bug/?i=8040
 [12] = https://curl.se/bug/?i=8006
 [13] = https://curl.se/bug/?i=8002
 [14] = https://curl.se/bug/?i=7998
 [15] = https://curl.se/bug/?i=8038
 [16] = https://curl.se/bug/?i=8060
 [17] = https://curl.se/bug/?i=7994
 [18] = https://curl.se/bug/?i=7991
 [19] = https://curl.se/bug/?i=7956
 [20] = https://curl.se/bug/?i=8034
 [21] = https://curl.se/bug/?i=8028
 [22] = https://curl.se/bug/?i=8030
 [23] = https://curl.se/bug/?i=8027
 [24] = https://curl.se/bug/?i=8025
 [25] = https://curl.se/bug/?i=8018
 [26] = https://curl.se/bug/?i=8021
 [27] = https://curl.se/bug/?i=8019
 [28] = https://curl.se/bug/?i=8017
 [29] = https://curl.se/bug/?i=8016
 [30] = https://curl.se/bug/?i=8059
 [31] = https://curl.se/bug/?i=8058
 [32] = https://curl.se/bug/?i=8056
 [33] = https://curl.se/bug/?i=8053
 [34] = https://curl.se/bug/?i=8090
 [35] = https://curl.se/bug/?i=8082
 [36] = https://curl.se/bug/?i=8049
 [37] = https://curl.se/bug/?i=8076
 [38] = https://curl.se/bug/?i=8160
 [39] = https://curl.se/bug/?i=8012
 [40] = https://curl.se/bug/?i=7988
 [41] = https://curl.se/bug/?i=8042
 [42] = https://curl.se/bug/?i=7987
 [43] = https://curl.se/bug/?i=8078
 [44] = https://curl.se/bug/?i=8071
 [45] = https://curl.se/bug/?i=8066
 [46] = https://curl.se/bug/?i=8033
 [47] = https://curl.se/bug/?i=8062
 [48] = https://curl.se/bug/?i=8105
 [49] = https://curl.se/bug/?i=8104
 [50] = https://curl.se/bug/?i=8101
 [51] = https://curl.se/bug/?i=8103
 [52] = https://curl.se/bug/?i=8083
 [53] = https://curl.se/bug/?i=8100
 [54] = https://curl.se/bug/?i=8132
 [55] = https://curl.se/bug/?i=8129
 [56] = https://curl.se/bug/?i=8065
 [57] = https://curl.se/bug/?i=8097
 [58] = https://curl.se/bug/?i=8097
 [59] = https://curl.se/bug/?i=8094
 [60] = https://curl.se/bug/?i=8134
 [61] = https://curl.se/bug/?i=8128
 [62] = https://curl.se/bug/?i=8128
 [63] = https://curl.se/bug/?i=8128
 [64] = https://curl.se/bug/?i=8128
 [65] = https://curl.se/bug/?i=8127
 [66] = https://curl.se/bug/?i=8126
 [67] = https://curl.se/bug/?i=8147
 [68] = https://curl.se/bug/?i=8125
 [69] = https://curl.se/bug/?i=8140
 [70] = https://curl.se/bug/?i=8120
 [71] = https://curl.se/bug/?i=8148
 [72] = https://curl.se/bug/?i=8146
 [73] = https://curl.se/bug/?i=8142
 [74] = https://curl.se/bug/?i=8159
 [75] = https://curl.se/bug/?i=7922
 [76] = https://curl.se/bug/?i=8084
 [77] = https://curl.se/bug/?i=8136
 [78] = https://curl.se/bug/?i=8137
 [79] = https://curl.se/bug/?i=8133
 [80] = https://curl.se/bug/?i=8162
 [81] = https://curl.se/bug/?i=8141
 [82] = https://curl.se/bug/?i=8158
 [83] = https://curl.se/bug/?i=8156
 [84] = https://curl.se/bug/?i=8218
 [85] = https://curl.se/bug/?i=8218
 [86] = https://curl.se/bug/?i=8181
 [87] = https://curl.se/bug/?i=8210
 [88] = https://curl.se/bug/?i=8177
 [89] = https://curl.se/bug/?i=8171
 [90] = https://curl.se/bug/?i=8215
 [91] = https://curl.se/bug/?i=8216
 [92] = https://curl.se/bug/?i=8215
 [93] = https://curl.se/bug/?i=8214
 [94] = https://curl.se/bug/?i=8207
 [95] = https://curl.se/bug/?i=8206
 [96] = https://curl.se/bug/?i=8212
 [98] = https://curl.se/bug/?i=8200
 [99] = https://curl.se/bug/?i=8197
 [100] = https://curl.se/bug/?i=8193
 [101] = https://curl.se/bug/?i=8178
 [102] = https://curl.se/bug/?i=8178
 [103] = https://curl.se/bug/?i=8196
 [104] = https://curl.se/bug/?i=8184
 [105] = https://curl.se/bug/?i=8180