Curl支持协定众多的文件传输程序,可下载FTP，HTT，HTTP，GOPHE，TELNET，DICT，FILE,LDAP的文件,还可以上传HTTPPOST，HTTPPUT，FTPuploading，HTTPformbasedupload，proxies，cookies。

Changes:

• automatically append ";type=" when using HTTP proxies for FTP urls
• improved NSS support
• added --proxy-negotiate
• added --post301 and CURLOPT_POST301
• builds with c-ares 1.5.0
• added CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 and --hostpubmd5
• renamed CURLE_SSL_PEER_CERTIFICATE to CURLE_PEER_FAILED_VERIFICATION
• added CURLOPT_OPENSOCKETFUNCTION and CURLOPT_OPENSOCKETDATA
• CULROPT_COOKIELIST supports "FLUSH"
• added CURLOPT_COPYPOSTFIELDS
• added --static-libs to curl-config

Bugfixes:

• curl-config --protocols now properly reports LDAPS, SCP and SFTP
• ldapv3 support on Windows
• ldap builds with the MSVC makefiles
• no HOME and no key given caused SSH auth failure
• Negotiate authentication over proxy
• --ftp-method nocwd on directory listings
• FTP, CURLOPT_NOBODY enabled and CURLOPT_HEADER disabled now does TYPE before SIZE
• re-used handle transfers with SFTP
• curl_easy_escape() problem with byte values >= 128
• handles chunked-encoded CONNECT responses
• misuse of ares_timeout() result
• --local-port on TFTP transfers
• CURLOPT_POSTFIELDS could fail to send binary data
• specifying a proxy with a trailing slash didn't work (unless it also contained a port number)
• redirect from HTTP to FTP or TFTP memory problems and leaks
• re-used connections a bit too much when using non-SSL protocols tunneled over a HTTP proxy
• embed the manifest in VC8 builds
• use valgrind in the tests even when the lib is built shared with libtool
• libcurl built with NSS can now ignore the peer verification even when the ca cert bundle is absent