docs/libcurl: remove ancient version references
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| @@ -45,7 +45,7 @@ The session's active socket. See CURLINFO_ACTIVESOCKET(3) | |
| ## CURLINFO_APPCONNECT_TIME | |
| The time it took from the start until the SSL connect/handshake with the | |
| - | remote host was completed as a double in number of seconds. (Added in 7.19.0) |
| + | remote host was completed as a double in number of seconds. |
| ## CURLINFO_APPCONNECT_TIME_T | |
| @@ -222,7 +222,7 @@ User's private data pointer. See CURLINFO_PRIVATE(3) | |
| ## CURLINFO_PROTOCOL | |
| - | (**Deprecated**) The protocol used for the connection. (Added in 7.52.0) See |
| + | (**Deprecated**) The protocol used for the connection. See |
| CURLINFO_PROTOCOL(3) | |
| ## CURLINFO_PROXYAUTH_AVAIL | |
| @@ -303,7 +303,7 @@ RTSP session ID. See CURLINFO_RTSP_SESSION_ID(3) | |
| ## CURLINFO_SCHEME | |
| - | The scheme used for the connection. (Added in 7.52.0) See CURLINFO_SCHEME(3) |
| + | The scheme used for the connection. See CURLINFO_SCHEME(3) |
| ## CURLINFO_SIZE_DOWNLOAD | |
| @@ -101,8 +101,6 @@ If you pass a 0 (zero) for this option, libcurl calls strlen() on the contents | |
| to figure out the size. If you really want to send a zero byte content then | |
| you must make sure strlen() on the data pointer returns zero. | |
| - | (Option added in 7.46.0) |
| - | |
| ## CURLFORM_CONTENTSLENGTH | |
| (This option is deprecated. Use *CURLFORM_CONTENTLEN* instead.) | |
| @@ -171,13 +169,12 @@ long which gives the length of the buffer. | |
| ## CURLFORM_STREAM | |
| - | Tells libcurl to use the CURLOPT_READFUNCTION(3) callback to get |
| - | data. The parameter you pass to *CURLFORM_STREAM* is the pointer passed on |
| - | to the read callback's fourth argument. If you want the part to look like a |
| - | file upload one, set the *CURLFORM_FILENAME* parameter as well. Note that |
| - | when using *CURLFORM_STREAM*, *CURLFORM_CONTENTSLENGTH* must also be |
| - | set with the total expected length of the part unless the formpost is sent |
| - | chunked encoded. (Option added in libcurl 7.18.2) |
| + | Tells libcurl to use the CURLOPT_READFUNCTION(3) callback to get data. The |
| + | parameter you pass to *CURLFORM_STREAM* is the pointer passed on to the read |
| + | callback's fourth argument. If you want the part to look like a file upload |
| + | one, set the *CURLFORM_FILENAME* parameter as well. Note that when using |
| + | *CURLFORM_STREAM*, *CURLFORM_CONTENTSLENGTH* must also be set with the total |
| + | expected length of the part unless the formpost is sent chunked encoded. |
| ## CURLFORM_ARRAY | |
| @@ -108,7 +108,7 @@ This bit has no point since 7.69.0 but its behavior is instead the default. | |
| Before 7.69.0: when this flag is set, curl acknowledges EINTR condition when | |
| connecting or when waiting for data. Otherwise, curl waits until full timeout | |
| - | elapses. (Added in 7.30.0) |
| + | elapses. |
| # %PROTOCOLS% | |
| @@ -165,13 +165,13 @@ HTTP Alt-Svc parsing and the associated options (Added in 7.64.1) | |
| libcurl was built with support for asynchronous name lookups, which allows | |
| more exact timeouts (even on Windows) and less blocking when using the multi | |
| - | interface. (added in 7.10.7) |
| + | interface. |
| ## `brotli` | |
| *features* mask bit: CURL_VERSION_BROTLI | |
| - | supports HTTP Brotli content encoding using libbrotlidec (Added in 7.57.0) |
| + | supports HTTP Brotli content encoding using libbrotlidec |
| ## `asyn-rr` | |
| @@ -185,7 +185,7 @@ resolves, but uses the threaded resolver for "normal" resolves (Added in | |
| *features* mask bit: CURL_VERSION_DEBUG | |
| - | libcurl was built with debug capabilities (added in 7.10.6) |
| + | libcurl was built with debug capabilities |
| ## `ECH` | |
| @@ -207,7 +207,6 @@ authentication methods. (added in 7.76.0) | |
| libcurl was built with support for GSS-API. This makes libcurl use provided | |
| functions for Kerberos and SPNEGO authentication. It also allows libcurl | |
| to use the current user credentials without the app having to pass them on. | |
| - | (Added in 7.38.0) |
| ## `HSTS` | |
| @@ -221,7 +220,6 @@ libcurl was built with support for HSTS (HTTP Strict Transport Security) | |
| *features* mask bit: CURL_VERSION_HTTP2 | |
| libcurl was built with support for HTTP2. | |
| - | (Added in 7.33.0) |
| ## `HTTP3` | |
| @@ -234,7 +232,6 @@ HTTP/3 and QUIC support are built-in (Added in 7.66.0) | |
| *features* mask bit: CURL_VERSION_HTTPS_PROXY | |
| libcurl was built with support for HTTPS-proxy. | |
| - | (Added in 7.52.0) |
| ## `HTTPSRR` | |
| @@ -248,7 +245,7 @@ in 8.12.0) | |
| *features* mask bit: CURL_VERSION_IDN | |
| libcurl was built with support for IDNA, domain names with international | |
| - | letters. (Added in 7.12.0) |
| + | letters. |
| ## `IPv6` | |
| @@ -261,19 +258,19 @@ supports IPv6 | |
| *features* mask bit: CURL_VERSION_KERBEROS5 | |
| supports Kerberos V5 authentication for FTP, IMAP, LDAP, POP3, SMTP and | |
| - | SOCKSv5 proxy. (Added in 7.40.0) |
| + | SOCKSv5 proxy. |
| ## `Largefile` | |
| *features* mask bit: CURL_VERSION_LARGEFILE | |
| - | libcurl was built with support for large files. (Added in 7.11.1) |
| + | libcurl was built with support for large files. |
| ## `libz` | |
| *features* mask bit: CURL_VERSION_LIBZ | |
| - | supports HTTP deflate using libz (Added in 7.10) |
| + | supports HTTP deflate using libz |
| ## `MultiSSL` | |
| @@ -281,20 +278,19 @@ supports HTTP deflate using libz (Added in 7.10) | |
| libcurl was built with multiple SSL backends. For details, see | |
| curl_global_sslset(3). | |
| - | (Added in 7.56.0) |
| ## `NTLM` | |
| *features* mask bit: CURL_VERSION_NTLM | |
| - | supports HTTP NTLM (added in 7.10.6) |
| + | supports HTTP NTLM |
| ## `NTLM_WB` | |
| *features* mask bit: CURL_VERSION_NTLM_WB | |
| - | libcurl was built with support for NTLM delegation to a winbind helper. |
| - | (Added in 7.22.0) This feature was removed from curl in 8.8.0. |
| + | libcurl was built with support for NTLM delegation to a winbind helper. This |
| + | feature was removed from curl in 8.8.0. |
| ## `PSL` | |
| @@ -302,20 +298,19 @@ libcurl was built with support for NTLM delegation to a winbind helper. | |
| libcurl was built with support for Mozilla's Public Suffix List. This makes | |
| libcurl ignore cookies with a domain that is on the list. | |
| - | (Added in 7.47.0) |
| ## `SPNEGO` | |
| *features* mask bit: CURL_VERSION_SPNEGO | |
| libcurl was built with support for SPNEGO authentication (Simple and Protected | |
| - | GSS-API Negotiation Mechanism, defined in RFC 2478.) (added in 7.10.8) |
| + | GSS-API Negotiation Mechanism, defined in RFC 2478.) |
| ## `SSL` | |
| *features* mask bit: CURL_VERSION_SSL | |
| - | supports SSL (HTTPS/FTPS) (Added in 7.10) |
| + | supports SSL (HTTPS/FTPS) |
| ## `SSLS-EXPORT` | |
| @@ -331,7 +326,7 @@ libcurl was built with SSL session import/export support | |
| libcurl was built with support for SSPI. This is only available on Windows and | |
| makes libcurl use Windows-provided functions for Kerberos, NTLM, SPNEGO and | |
| Digest authentication. It also allows libcurl to use the current user | |
| - | credentials without the app having to pass them on. (Added in 7.13.2) |
| + | credentials without the app having to pass them on. |
| ## `threadsafe` | |
| @@ -345,14 +340,14 @@ curl initialization. (Added in 7.84.0) See libcurl-thread(3) | |
| *features* mask bit: CURL_VERSION_TLSAUTH_SRP | |
| libcurl was built with support for TLS-SRP (in one or more of the built-in TLS | |
| - | backends). (Added in 7.21.4) |
| + | backends). |
| ## `TrackMemory` | |
| *features* mask bit: CURL_VERSION_CURLDEBUG | |
| libcurl was built with memory tracking debug capabilities. This is mainly of | |
| - | interest for libcurl hackers. (added in 7.19.6) |
| + | interest for libcurl hackers. |
| ## `Unicode` | |
| @@ -366,7 +361,6 @@ characters work in filenames and options passed to libcurl. (Added in 7.72.0) | |
| *features* mask bit: CURL_VERSION_UNIX_SOCKETS | |
| libcurl was built with support for Unix domain sockets. | |
| - | (Added in 7.40.0) |
| ## `zstd` | |
| @@ -379,13 +373,13 @@ supports HTTP zstd content encoding using zstd library (Added in 7.72.0) | |
| *features* mask bit: CURL_VERSION_CONV | |
| libcurl was built with support for character conversions provided by | |
| - | callbacks. Always 0 since 7.82.0. (Added in 7.15.4, deprecated.) |
| + | callbacks. Always 0 since 7.82.0. Deprecated. |
| ## no name | |
| *features* mask bit: CURL_VERSION_GSSNEGOTIATE | |
| - | supports HTTP GSS-Negotiate (added in 7.10.6, deprecated in 7.38.0) |
| + | supports HTTP GSS-Negotiate. Deprecated. |
| ## no name | |
| @@ -349,7 +349,7 @@ Initiating the SSL Engine failed. | |
| ## CURLE_LOGIN_DENIED (67) | |
| - | The remote server denied curl to login (Added in 7.13.1) |
| + | The remote server denied curl to login |
| ## CURLE_TFTP_NOTFOUND (68) | |
| @@ -403,22 +403,20 @@ Failed to shut down the SSL connection. | |
| Socket is not ready for send/recv. Wait until it is ready and try again. This | |
| return code is only returned from curl_easy_recv(3) and curl_easy_send(3) | |
| - | (Added in 7.18.2) |
| ## CURLE_SSL_CRL_BADFILE (82) | |
| - | Failed to load CRL file (Added in 7.19.0) |
| + | Failed to load CRL file |
| ## CURLE_SSL_ISSUER_ERROR (83) | |
| - | Issuer check failed (Added in 7.19.0) |
| + | Issuer check failed |
| ## CURLE_FTP_PRET_FAILED (84) | |
| The FTP server does not understand the PRET command at all or does not support | |
| the given argument. Be careful when using CURLOPT_CUSTOMREQUEST(3), a | |
| - | custom LIST command is sent with the PRET command before PASV as well. (Added |
| - | in 7.20.0) |
| + | custom LIST command is sent with the PRET command before PASV as well. |
| ## CURLE_RTSP_CSEQ_ERROR (85) | |
| @@ -439,7 +437,7 @@ Chunk callback reported error. | |
| ## CURLE_NO_CONNECTION_AVAILABLE (89) | |
| (For internal use only, is never returned by libcurl) No connection available, | |
| - | the session is queued. (added in 7.30.0) |
| + | the session is queued. |
| ## CURLE_SSL_PINNEDPUBKEYNOTMATCH (90) | |
| @@ -509,7 +507,6 @@ used. | |
| An alias for *CURLM_CALL_MULTI_PERFORM*. Never returned by modern libcurl | |
| versions. | |
| - | (Added in 7.15.5) |
| ## CURLM_OK (0) | |
| @@ -536,17 +533,15 @@ This can only be returned if libcurl bugs. Please report it to us. | |
| ## CURLM_BAD_SOCKET (5) | |
| The passed-in socket is not a valid one that libcurl already knows about. | |
| - | (Added in 7.15.4) |
| ## CURLM_UNKNOWN_OPTION (6) | |
| curl_multi_setopt() with unsupported option | |
| - | (Added in 7.15.4) |
| ## CURLM_ADDED_ALREADY (7) | |
| An easy handle already added to a multi handle was attempted to get added a | |
| - | second time. (Added in 7.32.1) |
| + | second time. |
| ## CURLM_RECURSIVE_API_CALL (8) | |
| @@ -592,12 +587,11 @@ An invalid share object was passed to the function. | |
| ## CURLSHE_NOMEM (4) | |
| Not enough memory was available. | |
| - | (Added in 7.12.0) |
| ## CURLSHE_NOT_BUILT_IN (5) | |
| The requested sharing could not be done because the library you use do not have | |
| - | that particular feature enabled. (Added in 7.23.0) |
| + | that particular feature enabled. |
| # CURLUcode | |
| @@ -29,8 +29,8 @@ CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONTENT_LENGTH_DOWNLOAD, | |
| # DESCRIPTION | |
| Pass a pointer to a double to receive the content-length of the download. This | |
| - | is the value read from the Content-Length: field. Since 7.19.4, this returns |
| - | -1 if the size is not known. |
| + | is the value read from the Content-Length: field. This returns -1 if the size |
| + | is not known. |
| CURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3) is a newer replacement that returns a more | |
| sensible variable type. | |
| @@ -31,14 +31,11 @@ CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_TLS_SESSION, | |
| # DESCRIPTION | |
| - | **This option has been superseded** by CURLINFO_TLS_SSL_PTR(3) which |
| - | was added in 7.48.0. The only reason you would use this option instead is if |
| - | you could be using a version of libcurl earlier than 7.48.0. |
| - | |
| - | This option is exactly the same as CURLINFO_TLS_SSL_PTR(3) except in the |
| - | case of OpenSSL and wolfSSL. If the session *backend* is |
| - | CURLSSLBACKEND_OPENSSL the session *internals* pointer varies depending |
| - | on the option: |
| + | **This option has been superseded** by CURLINFO_TLS_SSL_PTR(3). |
| + | |
| + | This option is exactly the same as CURLINFO_TLS_SSL_PTR(3) except in the case |
| + | of OpenSSL and wolfSSL. If the session *backend* is CURLSSLBACKEND_OPENSSL the |
| + | session *internals* pointer varies depending on the option: |
| ## OpenSSL: | |
| @@ -51,27 +51,27 @@ Enforce HTTP 1.1 requests. | |
| ## CURL_HTTP_VERSION_2_0 | |
| Attempt HTTP 2 requests. libcurl falls back to HTTP 1.1 if HTTP 2 cannot be | |
| - | negotiated with the server. (Added in 7.33.0) |
| + | negotiated with the server. |
| When libcurl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or | |
| higher even though that is required by the specification. A user can add this | |
| version requirement with CURLOPT_SSLVERSION(3). | |
| - | The alias *CURL_HTTP_VERSION_2* was added in 7.43.0 to better reflect the |
| - | actual protocol name. |
| + | The alias *CURL_HTTP_VERSION_2* was added to better reflect the actual |
| + | protocol name. |
| ## CURL_HTTP_VERSION_2TLS | |
| Attempt HTTP 2 over TLS (HTTPS) only. libcurl falls back to HTTP 1.1 if HTTP 2 | |
| cannot be negotiated with the HTTPS server. For clear text HTTP servers, | |
| - | libcurl uses 1.1. (Added in 7.47.0) |
| + | libcurl uses 1.1. |
| ## CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE | |
| Issue non-TLS HTTP requests using HTTP/2 without HTTP/1.1 Upgrade. It requires | |
| prior knowledge that the server supports HTTP/2 straight away. HTTPS requests | |
| still do HTTP/2 the standard way with negotiated protocol version in the TLS | |
| - | handshake. (Added in 7.49.0) |
| + | handshake. |
| Since 8.10.0 if this option is set for an HTTPS request then the application | |
| layer protocol version (ALPN) offered to the server is only HTTP/2. Prior to | |
| @@ -43,8 +43,8 @@ not considered as failure. | |
| A specific error code (CURLE_SSL_ISSUER_ERROR) is defined with the option, | |
| which is returned if the setup of the SSL/TLS session has failed due to a | |
| - | mismatch with the issuer of peer certificate (CURLOPT_SSL_VERIFYPEER(3) |
| - | has to be set too for the check to fail). (Added in 7.19.0) |
| + | mismatch with the issuer of peer certificate (CURLOPT_SSL_VERIFYPEER(3) has to |
| + | be set too for the check to fail). |
| Using this option multiple times makes the last set string override the | |
| previous ones. Set it to NULL to disable its use again. | |
| @@ -56,7 +56,6 @@ static curl_socket_t opensocket(void *clientp, | |
| static int sockopt_callback(void *clientp, curl_socket_t curlfd, | |
| curlsocktype purpose) | |
| { | |
| - | /* This return code was added in libcurl 7.21.5 */ |
| return CURL_SOCKOPT_ALREADY_CONNECTED; | |
| } | |
| @@ -104,7 +104,6 @@ static curl_socket_t opensocket(void *clientp, | |
| static int sockopt_callback(void *clientp, curl_socket_t curlfd, | |
| curlsocktype purpose) | |
| { | |
| - | /* This return code was added in libcurl 7.21.5 */ |
| return CURL_SOCKOPT_ALREADY_CONNECTED; | |
| } | |
| @@ -72,33 +72,22 @@ supported for wolfSSL. | |
| The flag defines the maximum supported TLS version as TLSv1.2, or the default | |
| value from the SSL library. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_0 | |
| The flag defines maximum supported TLS version as TLSv1.0. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_1 | |
| The flag defines maximum supported TLS version as TLSv1.1. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_2 | |
| The flag defines maximum supported TLS version as TLSv1.2. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_3 | |
| The flag defines maximum supported TLS version as TLSv1.3. | |
| - | (Added in 7.54.0) |
| - | |
| - | ## |
| - | |
| - | In versions of curl prior to 7.54 the CURL_SSLVERSION_TLS options were |
| - | documented to allow *only* the specified TLS version, but behavior was |
| - | inconsistent depending on the TLS library. |
| # DEFAULT | |
| @@ -49,8 +49,7 @@ Transport and OpenSSL. | |
| Tells libcurl to disable certificate revocation checks for those SSL backends | |
| where such behavior is present. This option is only supported for Schannel | |
| (the native Windows SSL library), with an exception in the case of Windows' | |
| - | Untrusted Publishers block list which it seems cannot be bypassed. (Added in |
| - | 7.44.0) |
| + | Untrusted Publishers block list which it seems cannot be bypassed. |
| ## CURLSSLOPT_NO_PARTIALCHAIN | |
| @@ -120,7 +120,7 @@ operand, provided it is empty. | |
| ## statvfs file | |
| The statvfs command returns statistics on the file system in which specified | |
| - | file resides. (Added in 7.49.0) |
| + | file resides. |
| ## symlink source_file target_file | |
| @@ -96,7 +96,6 @@ static curl_socket_t opensocket(void *clientp, | |
| static int sockopt_callback(void *clientp, curl_socket_t curlfd, | |
| curlsocktype purpose) | |
| { | |
| - | /* This return code was added in libcurl 7.21.5 */ |
| return CURL_SOCKOPT_ALREADY_CONNECTED; | |
| } | |
| @@ -58,58 +58,48 @@ SSL v3 - refused | |
| ## CURL_SSLVERSION_TLSv1_0 | |
| - | TLS v1.0 or later (Added in 7.34.0) |
| + | TLS v1.0 or later |
| ## CURL_SSLVERSION_TLSv1_1 | |
| - | TLS v1.1 or later (Added in 7.34.0) |
| + | TLS v1.1 or later |
| ## CURL_SSLVERSION_TLSv1_2 | |
| - | TLS v1.2 or later (Added in 7.34.0) |
| + | TLS v1.2 or later |
| ## CURL_SSLVERSION_TLSv1_3 | |
| - | TLS v1.3 or later (Added in 7.52.0) |
| + | TLS v1.3 or later |
| ## | |
| - | The maximum TLS version can be set by using *one* of the |
| - | CURL_SSLVERSION_MAX_ macros below. It is also possible to OR *one* of the |
| - | CURL_SSLVERSION_ macros with *one* of the CURL_SSLVERSION_MAX_ macros. |
| + | The maximum TLS version can be set by using *one* of the CURL_SSLVERSION_MAX_ |
| + | macros below. It is also possible to OR *one* of the CURL_SSLVERSION_ macros |
| + | with *one* of the CURL_SSLVERSION_MAX_ macros. |
| ## CURL_SSLVERSION_MAX_DEFAULT | |
| The flag defines the maximum supported TLS version by libcurl, or the default | |
| value from the SSL library is used. libcurl uses a sensible default maximum, | |
| which was TLS v1.2 up to before 7.61.0 and is TLS v1.3 since then - assuming | |
| - | the TLS library support it. (Added in 7.54.0) |
| + | the TLS library support it. |
| ## CURL_SSLVERSION_MAX_TLSv1_0 | |
| The flag defines maximum supported TLS version as TLS v1.0. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_1 | |
| The flag defines maximum supported TLS version as TLS v1.1. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_2 | |
| The flag defines maximum supported TLS version as TLS v1.2. | |
| - | (Added in 7.54.0) |
| ## CURL_SSLVERSION_MAX_TLSv1_3 | |
| The flag defines maximum supported TLS version as TLS v1.3. | |
| - | (Added in 7.54.0) |
| - | |
| - | ## |
| - | |
| - | In versions of curl prior to 7.54 the CURL_SSLVERSION_TLS options were |
| - | documented to allow *only* the specified TLS version, but behavior was |
| - | inconsistent depending on the TLS library. |
| # DEFAULT | |
| @@ -47,8 +47,7 @@ Transport and OpenSSL. | |
| Tells libcurl to disable certificate revocation checks for those SSL backends | |
| where such behavior is present. This option is only supported for Schannel | |
| (the native Windows SSL library), with an exception in the case of Windows' | |
| - | Untrusted Publishers block list which it seems cannot be bypassed. (Added in |
| - | 7.44.0) |
| + | Untrusted Publishers block list which it seems cannot be bypassed. |
| ## CURLSSLOPT_NO_PARTIALCHAIN | |
| @@ -28,7 +28,7 @@ CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval); | |
| # DESCRIPTION | |
| Pass a long. Sets the interval, in seconds, to wait between sending keepalive | |
| - | probes. Not all operating systems support this option. (Added in 7.25.0) |
| + | probes. Not all operating systems support this option. |
| The maximum value this accepts is 2147483648. Any larger value is capped to | |
| this amount. | |
| @@ -54,10 +54,9 @@ the same multi handle share the DNS cache by default without using this option. | |
| ## CURL_LOCK_DATA_SSL_SESSION | |
| - | SSL sessions are shared across the easy handles using this shared |
| - | object. This reduces the time spent in the SSL handshake when reconnecting to |
| - | the same server. This symbol was added in 7.10.3 but was not implemented until |
| - | 7.23.0. |
| + | SSL sessions are shared across the easy handles using this shared object. This |
| + | reduces the time spent in the SSL handshake when reconnecting to the same |
| + | server. |
| Note that when you use the multi interface, all easy handles added to the same | |
| multi handle share the SSL session cache by default without using this option. | |
| @@ -74,9 +73,6 @@ additional transfers added to them if the existing connection is held by the | |
| same multi or easy handle. libcurl does not support doing multiplexed streams | |
| in different threads using a shared connection. | |
| - | Support for **CURL_LOCK_DATA_CONNECT** was added in 7.57.0, but the symbol |
| - | existed before this. |
| - | |
| Note that when you use the multi interface, all easy handles added to the same | |
| multi handle share the connection cache by default without using this option. | |