org.apache.httpcomponents:fluent-hc

HttpClient 4.5.1 (GA) is a maintenance release that fixes a number of minor defects found since 4.5.

Please note that as of 4.4 HttpClient requires Java 1.6 or newer.

HttpClient 4.5 (GA) is a minor feature release that includes several incremental enhancements to the exisitng functionality such as support for private domains in the Mozilla Public Suffix List.

HttpClient 4.4.1 (GA) is a maintenance release that fixes a number of defects in new functionality introduced in version 4.4.

Users of HttpClient 4.4 are encouraged to upgrade.

Please note that as of 4.4 HttpClient requires Java 1.6 or newer.

This is the first stable (GA) release of HttpClient 4.4. Notable features and enhancements included in 4.4 series are:

• Support for the latest HTTP state management specification (RFC 6265). Please note that the old cookie policy is still used by default for compatibility reasons. RFC 6265 compliant cookie policies need to be explicitly configured by the user. Please also note that as of next feature release support for Netscape draft, RFC 2109 and RFC 2965 cookie policies will be deprecated and disabled by default. It is recommended to use RFC 6265 compliant policies for new applications unless compatibility with RFC 2109 and RFC 2965 is required and to migrate existing applications to the default cookie policy.

• Enhanced, redesigned and rewritten default SSL hostname verifier with improved RFC 2818 compliance.

• Default SSL hostname verifier and default cookie policy now validate certificate identity and cookie domain of origin against the public suffix list maintained by Mozilla.org https://publicsuffix.org/list

• More efficient stale connection checking: indiscriminate connection checking which results in approximately 20 to 50 ms overhead per request has been deprecated in favor of conditional connection state validation (persistent connections are to be re-validated only if a specified period inactivity has elapsed.)

• Authentication cache thread-safety: authentication cache used by HttpClient is now thread-safe and can be shared by multiple threads in order to re-use authentication state for subsequent requests.

• Native Windows Negotiate and NTLM via SSPI through JNA: when running on Windows OS HttpClient configured to use native NTLM or SPNEGO authentication schemes can make use of platform specific functionality via JNA and current user credentials. This functionality is still considered experimental, known to have compatibility issues and subject to change without prior notice. Use at your discretion.

This release also includes all fixes from the stable 4.3.x release branch.

Please note that as of 4.4 HttpClient requires Java 1.6 or newer.

HttpClient 4.3.6 (GA) is a maintenance release that fixes several problems with HttpClient OSGi bundle as well as some other issues reported since release 4.3.5.

Please note that as of this release HttpClient disables all versions of SSL (including SSLv3) in favor of the TLS protocol by default. Those users who wish to continue using SSLv3 need to explicitly enable support for it.

Users of all HttpClient versions are advised to upgrade.

HttpClient 4.3.5 (GA) is a bug fix release that addresses several of issues reported since release 4.3.4.

Users of all HttpClient versions are advised to upgrade.

HttpClient 4.3.4 (GA) is a maintenance release that improves performance in high concurrency scenarios. This version replaces dynamic proxies with custom proxy classes and eliminates thread contention in java.reflect.Proxy.newInstance() when leasing connections from the connection pool and processing response messages.

HttpClient 4.3.3 (GA) is a bug fix release that fixes a regression introduced by the previous release causing a significant performance degradation in compressed content processing.

Users of HttpClient 4.3 are encouraged to upgrade.

HttpClient 4.3.2 (GA) is a maintenance release that delivers a number of improvements as well as bug fixes for issues reported since 4.3.1 release. SNI support for Oracle JRE 1.7+ is being among the most notable improvements.

Users of HttpClient 4.3 are encouraged to upgrade.

HttpClient 4.3.1 (GA) is a bug fix release that addresses a number of issues reported since release 4.3.

Users of HttpClient 4.3 are strongly encouraged to upgrade.

This is the first stable (GA) release of HttpClient 4.3. The most notable enhancements included in this release are:

• Support for Java 7 try-with-resources for resource management (connection release.)

• Added fluent Builder classes for HttpEntity, HttpRequest, HttpClient and SSLContext instances.

• Deprecation of preference and configuration API based on HttpParams interface in favor of constructor injection and plain configuration objects.

• Reliance on object immutability instead of access synchronization for thread safety. Several old classes whose instances can be shared by multiple request exchanges have been replaced by immutable equivalents.

• DefaultHttpClient, DecompressingHttpClient, CachingHttpClient and similar classes are deprecated in favor of builder classes that produce immutable HttpClient instances.

• HttpClient builders now dynamically construct a request execution pipeline tailored specifically to the user configuration by physically excluding unnecessary protocol components.

• There is now an option to construct a minimal HttpClient implementation that can only execute basic HTTP message exchanges without redirects, authentication, state management or proxy support. This feature might be of particular use in web crawler development.

• There is now option to avoid strict URI syntax for request URIs by executing HTTP requests with an explicitly specified target host. HttpClient will no longer attempt to parse the request URI if it does not need to extract the target host from it.

This release also includes all fixes from the stable 4.2.x release branch.

HttpClient 4.2.3 (GA) is a bug fix release that addresses a number of issues reported since release 4.2.2. This release also includes a thoroughly reworked NTLM authentication engine which should result in a better compatibility with the newest Microsoft products.

Users of HttpClient 4.x are advised to upgrade.

HttpClient 4.2.2 (GA) is a bug fix release that addresses a number of issues reported since release 4.2.1.

Users of HttpClient 4.2 are advised to upgrade.

HttpClient 4.2.1 (GA) is a bug fix release that addresses a number of issues reported since release 4.2.

Users of HttpClient 4.2 are advised to upgrade.

This is the first stable (GA) release of HttpClient 4.2. The most notable enhancements included in this release are:

• New facade API for HttpClient based on the concept of a fluent interface. The fluent API exposes only the most fundamental functions of HttpClient and is intended for relatively simple use cases that do not require the full flexibility of HttpClient. However, the fluent API almost fully relieves the users from having to deal with connection management and resource deallocation.

• Redesigned and rewritten connection management code.

• Enhanced HTTP authentication API that enables HttpClient to handle more complex authentication scenarios. HttpClient 4.2 is now capable of making use of multiple authentication challenges and retry authentication with a fall-back scheme in case the primary one fails. This can be important for compatibility with Microsoft products that are often configured to use SPNEGO/Kerberos as the preferred authentication scheme.