CURLOPT_FAILONERROR with FTP to detect if a file exists or not, but it is
  not working: http://curl.haxx.se/mail/lib-2008-07/0295.html

  Server with the correct content-length.  Sending a file with 511 or less
  bytes, content-length 512 is used.  Sending a file with 513 - 1023 bytes,
  content-length 1024 is used.  Files with a length of a multiple of 512 Bytes
  show the correct content-length. Only these files work for upload.
  http://curl.haxx.se/bug/view.cgi?id=2057858

commands to the man pages.

header replacing an internal one

to have a curl_off_t data type no longer gated to off_t.

  curl_multi_socket()
- don't claim that it has an argument named 'easy' because it doesn't!

support this so it goes untested.

incorrectly--the host name is treated as part of the user name and the
port number becomes the password.  This can be observed in test 279
(was KNOWN_ISSUE #54).

as well as IPv4 addresses in IPv6 format. Also, better handle the case
of a malformatted IPv6 address (avoid empty and NULL strings).

  parser to allow numerical IPv6-addresses to be specified with the scope
  given, as per RFC4007 - with a percent letter that itself needs to be URL
  escaped. For example, for an address of fe80::1234%1 the HTTP URL is:
  "http://[fe80::1234%251]/"

  server using the multi interface, the commands are not being sent correctly
  and instead the connection is "cancelled" (the operation is considered done)
  prematurely. There is a half-baked (busy-looping) patch provided in the bug
  report but it cannot be accepted as-is. See
  http://curl.haxx.se/bug/view.cgi?id=2006544

OpenSSL.

defined by the libcurl API. Also changed curl_easy_setopt examples to
pass longs where appropriate.

  non-zero with the fixed value of 1. We should strive at making options
  support '1' for enabling them mentioned explicitly, as that then will allow
  us for to extend them in the future without breaking older programs.

file has been included. In this way if symbol is defined in the config file
it will no longer be ignored.

curl-library list on July 9th 2008 by Mathew Hounsell)

NOTE: the name resolve functions of various libc implementations don't re-read
name server information unless explicitly told so (by for example calling
Ires_init(3). This may cause libcurl to keep using the older server even
if DHCP has updated the server info, and this may look like a DNS cache issue
to the casual libcurl-app user.

and cookie_interface.c.

CURLINFO_APPCONNECT_TIME. This is set with the "application layer"
handshake/connection is completed (typically SSL, TLS or SSH). By using this
you can figure out the application layer's own connect time. You can extract
the time stamp using curl's -w option and the new variable named
'time_appconnect'. This feature was sponsored by Lenny Rachitsky at NeuStar.

  operating system.

in regard to C standard, third party libraries and operating systems etc.