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From Oleg Kalnichevski <ol...@apache.org>
Subject [ANNOUNCEMENT] HttpComponents HttpClient 4.1 (GA) release
Date Mon, 24 Jan 2011 09:20:29 GMT
The HttpComponents project is pleased to announce 4.1 (GA)
release of Apache HttpClient. HttpClient 4.1 builds upon the stable
foundation laid by HttpClient 4.0 and adds several functional
improvements and popular features:

* Response caching conditionally compliant with HTTP/1.1 specification
(full compliance with MUST requirements, partial compliance with SHOULD

* Full support for NTLMv1, NTLMv2, and NTLM2 Session authentication. The
NTLM protocol code  was kindly contributed by the Lucene Connector
Framework project.

* Support for SPNEGO/Kerberos authentication.

* Persistence of authentication data between request executions within
the same execution context.

* Support for preemptive authentication for BASIC and DIGEST schemes.
* Support for transparent content encoding. Please note transparent
content encoding is not enabled per default in order to avoid conflicts
with already existing custom content encoding solutions.

* Mechanism to bypass the standard certificate trust verification
(useful when dealing with self-signed certificates).

* Simplified configuration for connection managers.

* Transparent support for host multihoming.

All upstream projects are strongly encouraged to upgrade.

Please note that the HttpClient 3.x branch is now officially END OF LIFE
and is no longer maintained and supported by the Apache HttpComponents

Download -

Release notes -

HttpComponents site -


About Apache HttpClient

Although the java.net package provides basic functionality for accessing
resources via HTTP, it doesn't provide the full flexibility or
functionality needed by many applications. HttpClient seeks to fill this
void by providing an efficient, up-to-date, and feature-rich package
implementing the client side of the most recent HTTP standards and

Designed for extension while providing robust support for the base HTTP
protocol, HttpClient may be of interest to anyone building HTTP-aware
client applications such as web browsers, web service clients, or
systems that leverage or extend the HTTP protocol for distributed

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