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bagder committed Sep 9, 2014
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How cURL Became Like This
How cURL Became Like This
=========================


Towards the end of 1996, Daniel Stenberg came up with the idea to make
Towards the end of 1996, Daniel Stenberg was spending time writing an IRC bot
for an Amiga related channel on EFnet. He then came up with the idea to make
currency-exchange calculations available to Internet Relay Chat (IRC)
users. All the necessary data are published on the Web; he just needed to
automate their retrieval.

Daniel simply adopted an existing command-line open-source tool, httpget, that
Brazilian Rafael Sagula had written and recently release version 0.1 of. After
a few minor adjustments, it did just what he needed. HttpGet 1.0 was released
on April 8th 1997 with brand new HTTP proxy support.
a few minor adjustments, it did just what he needed.

1997
----

HttpGet 1.0 was released on April 8th 1997 with brand new HTTP proxy support.

We soon found and fixed support for getting currencies over GOPHER. Once FTP
download support was added, the name of the project was changed and urlget 2.0
Expand All @@ -33,53 +38,65 @@ was revealed to us much later.)

SSL support was added, powered by the SSLeay library.

August 1998, first announcement of curl on freshmeat.net.
1998
----

August, first announcement of curl on freshmeat.net.

October 1998, with the curl 4.9 release and the introduction of cookie
support, curl was no longer released under the GPL license. Now we're at 4000
lines of code, we switched over to the MPL license to restrict the effects of
October, with the curl 4.9 release and the introduction of cookie support,
curl was no longer released under the GPL license. Now we're at 4000 lines of
code, we switched over to the MPL license to restrict the effects of
"copyleft".

November 1998, configure script and reported successful compiles on several
November, configure script and reported successful compiles on several
major operating systems. The never-quite-understood -F option was added and
curl could now simulate quite a lot of a browser. TELNET support was added.

Curl 5 was released in December 1998 and introduced the first ever curl man
page. People started making Linux RPM packages out of it.

January 1999, DICT support added.
1999
----

January, DICT support added.

OpenSSL took over where SSLeay was abandoned.

May 1999, first Debian package.
May, first Debian package.

August 1999, LDAP:// and FILE:// support added. The curl web site gets 1300
visits weekly.
August, LDAP:// and FILE:// support added. The curl web site gets 1300 visits
weekly.

Released curl 6.0 in September. 15000 lines of code.

December 28 1999, added the project on Sourceforge and started using its
services for managing the project.
December 28, added the project on Sourceforge and started using its services
for managing the project.

2000
----

Spring 2000, major internal overhaul to provide a suitable library interface.
The first non-beta release was named 7.1 and arrived in August. This offered
the easy interface and turned out to be the beginning of actually getting
other software and programs to get based on and powered by libcurl. Almost
20000 lines of code.

August 2000, the curl web site gets 4000 visits weekly.
August, the curl web site gets 4000 visits weekly.

The PHP guys adopted libcurl already the same month, when the first ever third
party libcurl binding showed up. CURL has been a supported module in PHP since
the release of PHP 4.0.2. This would soon get followers. More than 16
different bindings exist at the time of this writing.

September 2000, kerberos4 support was added.
September, kerberos4 support was added.

In November 2000 started the work on a test suite for curl. It was later
re-written from scratch again. The libcurl major SONAME number was set to 1.
In November started the work on a test suite for curl. It was later re-written
from scratch again. The libcurl major SONAME number was set to 1.

January 2001, Daniel released curl 7.5.2 under a new license again: MIT (or
2001
----

January, Daniel released curl 7.5.2 under a new license again: MIT (or
MPL). The MIT license is extremely liberal and can be used combined with GPL
in other projects. This would finally put an end to the "complaints" from
people involved in GPLed projects that previously were prohibited from using
Expand All @@ -92,17 +109,20 @@ code. The libcurl major SONAME number was bumped to 2 due to this overhaul.

The first experimental ftps:// support was added in March 2001.

August 2001. curl is bundled in Mac OS X, 10.1. It was already becoming more
and more of a standard utility of Linux distributions and a regular in the BSD
August. curl is bundled in Mac OS X, 10.1. It was already becoming more and
more of a standard utility of Linux distributions and a regular in the BSD
ports collections. The curl web site gets 8000 visits weekly. Curl Corporation
contacted Daniel to discuss "the name issue". After Daniel's reply, they have
never since got in touch again.

September 2001, libcurl 7.9 introduces cookie jar and curl_formadd(). During
the forthcoming 7.9.x releases, we introduced the multi interface slowly and
September, libcurl 7.9 introduces cookie jar and curl_formadd(). During the
forthcoming 7.9.x releases, we introduced the multi interface slowly and
without much whistles.

June 2002, the curl web site gets 13000 visits weekly. curl and libcurl is
2002
----

June, the curl web site gets 13000 visits weekly. curl and libcurl is
35000 lines of code. Reported successful compiles on more than 40 combinations
of CPUs and operating systems.

Expand All @@ -111,134 +131,145 @@ impossible. Around 5000 downloaded packages each week from the main site gives
a hint, but the packages are mirrored extensively, bundled with numerous OS
distributions and otherwise retrieved as part of other software.

September 2002, with the release of curl 7.10 it is released under the MIT
license only.
September, with the release of curl 7.10 it is released under the MIT license
only.

January 2003. Started working on the distributed curl tests. The autobuilds.
2003
----

February 2003, the curl site averages at 20000 visits weekly. At any given
moment, there's an average of 3 people browsing the curl.haxx.se site.
January. Started working on the distributed curl tests. The autobuilds.

February, the curl site averages at 20000 visits weekly. At any given moment,
there's an average of 3 people browsing the curl.haxx.se site.

Multiple new authentication schemes are supported: Digest (May), NTLM (June)
and Negotiate (June).

November 2003: curl 7.10.8 is released. 45000 lines of code. ~55000 unique
visitors to the curl.haxx.se site. Five official web mirrors.

December 2003, full-fledged SSL for FTP is supported.
November: curl 7.10.8 is released. 45000 lines of code. ~55000 unique visitors
to the curl.haxx.se site. Five official web mirrors.

January 2004: curl 7.11.0 introduced large file support.
December, full-fledged SSL for FTP is supported.

June 2004:
2004
----

curl 7.12.0 introduced IDN support. 10 official web mirrors.
January: curl 7.11.0 introduced large file support.

This release bumped the major SONAME to 3 due to the removal of the
curl_formparse() function
June: curl 7.12.0 introduced IDN support. 10 official web mirrors.

August 2004:
Curl and libcurl 7.12.1
This release bumped the major SONAME to 3 due to the removal of the
curl_formparse() function

Public curl release number: 82
Releases counted from the very beginning: 109
Available command line options: 96
Available curl_easy_setopt() options: 120
Number of public functions in libcurl: 36
Amount of public web site mirrors: 12
Number of known libcurl bindings: 26
August: Curl and libcurl 7.12.1

April 2005:
Public curl release number: 82
Releases counted from the very beginning: 109
Available command line options: 96
Available curl_easy_setopt() options: 120
Number of public functions in libcurl: 36
Amount of public web site mirrors: 12
Number of known libcurl bindings: 26

GnuTLS can now optionally be used for the secure layer when curl is built.
2005
----

September 2005:
April. GnuTLS can now optionally be used for the secure layer when curl is
built.

TFTP support was added.
September: TFTP support was added.

More than 100,000 unique visitors of the curl web site. 25 mirrors.
More than 100,000 unique visitors of the curl web site. 25 mirrors.

December 2005:
December: security vulnerability: libcurl URL Buffer Overflow

security vulnerability: libcurl URL Buffer Overflow
2006
----

January 2006:
January. We dropped support for Gopher. We found bugs in the implementation
that turned out having been introduced years ago, so with the conclusion that
nobody had found out in all this time we removed it instead of fixing it.

We dropped support for Gopher. We found bugs in the implementation that
turned out having been introduced years ago, so with the conclusion that
nobody had found out in all this time we removed it instead of fixing it.
March: security vulnerability: libcurl TFTP Packet Buffer Overflow

March 2006:
April: Added the multi_socket() API

security vulnerability: libcurl TFTP Packet Buffer Overflow
September: The major SONAME number for libcurl was bumped to 4 due to the
removal of ftp third party transfer support.

April 2006:
November: Added SCP and SFTP support

Added the multi_socket() API
2007
----

September 2006:
February: Added support for the Mozilla NSS library to do the SSL/TLS stuff

The major SONAME number for libcurl was bumped to 4 due to the removal of
ftp third party transfer support.
July: security vulnerability: libcurl GnuTLS insufficient cert verification

November 2006:
2008
----

Added SCP and SFTP support
November:

February 2007:
Command line options: 128
curl_easy_setopt() options: 158
Public functions in libcurl: 58
Known libcurl bindings: 37
Contributors: 683

Added support for the Mozilla NSS library to do the SSL/TLS stuff
145,000 unique visitors. >100 GB downloaded.

July 2007:
2009
----

security vulnerability: libcurl GnuTLS insufficient cert verification
March: security vulnerability: libcurl Arbitrary File Access

November 2008:
August: security vulnerability: libcurl embedded zero in cert name

Command line options: 128
curl_easy_setopt() options: 158
Public functions in libcurl: 58
Known libcurl bindings: 37
Contributors: 683
December: Added support for IMAP, POP3 and SMTP

145,000 unique visitors. >100 GB downloaded.
2010
----

March 2009:
January: Added support for RTSP

security vulnerability: libcurl Arbitrary File Access
February: security vulnerability: libcurl data callback excessive length

August 2009:
March: The project switched over to use git (hosted by github) instead of CVS
for source code control

security vulnerability: libcurl embedded zero in cert name
May: Added support for RTMP

December 2009:
Added support for PolarSSL to do the SSL/TLS stuff

Added support for IMAP, POP3 and SMTP
August:

January 2010:
Public curl releases: 117
Command line options: 138
curl_easy_setopt() options: 180
Public functions in libcurl: 58
Known libcurl bindings: 39
Contributors: 808

Added support for RTSP

February 2010:
Gopher support added (re-added actually)

security vulnerability: libcurl data callback excessive length
2012
----

March 2010:
July: Added support for Schannel (native Windows TLS backend) and Darwin SSL
(Native Mac OS X and iOS TLS backend).

The project switched over to use git instead of CVS for source code control
Supports metalink

May 2010:
October: SSH-agent support.

Added support for RTMP
2013
----

Added support for PolarSSL to do the SSL/TLS stuff
February: Cleaned up internals to always uses the "multi" non-blocking
approach internally and only expose the blocking API with a wrapper.

August 2010:
September: First small steps on supporting HTTP/2 with nghttp2.

Public curl releases: 117
Command line options: 138
curl_easy_setopt() options: 180
Public functions in libcurl: 58
Known libcurl bindings: 39
Contributors: 808
October: Removed krb4 support.

Gopher support added (re-added actually)
December: Happy eyeballs.

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