From 001211761a8bbd50120d140d8db8e7a756832922 Mon Sep 17 00:00:00 2001 From: Oleg Kalnichevski Date: Sun, 19 Nov 2017 12:50:31 +0100 Subject: [PATCH] Updated release notes for HttpClient 5.0 alpha 3 release --- RELEASE_NOTES.txt | 84 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 83 insertions(+), 1 deletion(-) diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt index 0fe9886ea..87ecaf338 100644 --- a/RELEASE_NOTES.txt +++ b/RELEASE_NOTES.txt @@ -1,16 +1,98 @@ Release 5.0-ALPHA3 ------------------- -* [HTTPCLIENT-1845]: Extract InputStreamFactory classes out of GzipDecompressingEntity and +This is a major release that introduces support for the HTTP/2 protocol and event driven +messaging APIs consistent for all supported HTTP protocol versions. + +HttpClient ships with two client implementations: + +* HttpClient Classic is based on the classic (blocking) I/O model; largely compatible + with the 4.x APIs; supports HTTP/1.1 only. + +* HttpClient Async is based on NIO model; new event driven APIs consistent for all supported + HTTP protocol versions; supports both HTTP/1.1 and HTTP/2. + + +Notable new features in this release: + +* Asynchronous HttpClient implementations optimized for HTTP/2 multiplexed request execution. + +* Full support for HTTP caching by asynchronous HttpClient implementations including + streaming message exchanages. + + +Notable changes and features included in the 5.0 series are: + +* Support for the HTTP/2 protocol and conformance to requirements and + recommendations of the latest HTTP/2 protocol specification documents + (RFC 7540, RFC 7541.) + + Supported features: + + ** HPACK header compression + ** Stream multiplexing (client and server) + ** Flow control + ** Response push + ** Message trailers + ** Expect-continue handshake + ** Connection validation (ping) + ** Application-layer protocol negotiation (ALPN) on Java 9.0.1+ + ** TLS 1.2 security features + +* Improved conformance to requirements and recommendations of the latest HTTP/1.1 protocol + specification documents (RFC 7230, RFC 7231.) + +* Redesigned connection pool implementation with reduced pool lock contention. + +* Package name space changed to 'org.apache.hc.client5'. + +* Maven group id changed to 'org.apache.httpcomponents.client5'. + +* Apache Log4j2 logging APIs used for internal logging instead of Commons Logging APIs. + +HttpClient 5.0 releases can be co-located with earlier major versions on the same classpath +due to the change in package names and Maven module coordinates. + +Please note that as of 5.0, HttpClient requires Java 1.7 or newer. + + +Changelog: +------------------- + +* HttpAsyncClient implementations optimized for HTTP/2 multiplexed + request execution. + Contributed by Oleg Kalnichevski + +* Improved Ehcache and Memcached storage backends. + Contributed by Oleg Kalnichevski + +* [HTTPCLIENT-1827] Full support for HTTP caching by asynchronous HTTP clients. + Contributed by Oleg Kalnichevski + +* Redesign of HTTP cache resource APIs. + Contributed by Oleg Kalnichevski + +* Deprecated Content-Transfer-Encoding field in MIME body parts per RFC 7578, section 4.7. + Contributed by Oleg Kalnichevski + +* [HTTPCLIENT-293] Implemented the percent encoding of the filename parameter of the Content-Disposition header. + Contributed by Ioannis Sermetziadis + +* [HTTPCLIENT-1845]: Extract InputStreamFactory classes out of GzipDecompressingEntity and DeflateDecompressingEntity for reuse and to create less garbage. Contributed by Gary Gregory * [HTTPCLIENT-1858] Alleviate GC pressure due to wire logging. Contributed by Gary Gregory +* Avoid fetching the cached entity twice on cache hit. + Contributed by Leandro Nunes + * [HTTPASYNC-124] Add doPrivileged blocks to async client and connection manager builders Contributed by Jay Modi + + Release 5.0-ALPHA2 -------------------