Sourced from org.apache.httpcomponents.client5:httpclient5's changelog.

Release 5.5

This is the first GA release in the 5.5 release series. This release finalizes the 5.5 APIs and adds several experimental features and improvements, such as request multiplexing over a shared HTTP/2 connection and the Classic API facade acting as a compatibility bridge between classic I/O client services and the asynchronous message transport used internally.

Notable changes and features included in the 5.5 series:

• Improved conformance to RFC 7616 (HTTP Digest Access Authentication).

• The connection pool implementation acts as a caching facade in front of a standard managed connection pool and shares already leased connections to multiplex message exchanges over active HTTP/2 connections. Experimental.

• Extended Auth API and improved authentication protocol logic to support mutual authentication.

• The Classic API facade now acts as a compatibility bridge between the classic I/O client services (based on the standard InputStream / OutputStream model) and the asynchronous message transport used internally. This is experimental.

• HTTP/2 support for the Fluent Facade (via Classic API facade). This is experimental.

Compatibility notes:

• As of this release, HttpClient does not automatically execute redirects if the original request manually added headers that are considered sensitive.

Change Log

• HTTPCLIENT-2367: Fixed NPE in InternalAbstractHttpAsyncClient by adding a null check for resolvedTarget (#634). Contributed by Arturo Bernal

• Fixed case of Cookie#HTTP_ONLY_ATTR Contributed by Finn Petersen [email protected]

• Simplified ProtocolSwitchStrategy by leveraging ProtocolVersionParser (#627). Contributed by Arturo Bernal

• HTTPCLIENT-2364: Fixed incorrect re-binding of the upgraded SSL socket to the HTTP connection by the #upgrade method of the DefaultHttpClientConnectionOperator. Contributed by Oleg Kalnichevski

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• b42e73c HttpClient 5.5 release
• 3061c34 Updated release notes for HttpClient 5.5 release
• 14a9208 Updated NOTICE to 2025
• 4021b7c Link text adjustment
• be441c1 Update the GitHub Security page with a link to the new HttpComponents
• f5f9ae8 HTTPCLIENT-2367 - Fix NPE in InternalAbstractHttpAsyncClient by adding null c...
• 19c0278 Bump org.junit:junit-bom from 5.12.1 to 5.12.2 #632
• ef06a27 Bump org.junit:junit-bom from 5.12.1 to 5.12.2 (#632)
• 9bae302 Fix case of Cookie.HTTP_ONLY_ATTR
• 0ba6102 Simplify ProtocolSwitchStrategy by Leveraging ProtocolVersionParser (#627)
• Additional commits viewable in compare view

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