Netty 4.1.22.Final 发布，Java 网络服务框架

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Netty 4.1.22.Final 已发布，该版本包含错误修复、性能增强和新功能，建议升级。

主要的变更：

• To detect Android, check the VM property rather than the classpath (#7679)
• Propagate full Unsafe unavailability reason in PlatformDependent (#7684)
• Use long for http2 ping payload (#7690)
• Introduce an alternative IdentityCipherSuiteFilter that defaults to supportedCiphers (#7691)
• Reduce the default number of objects retained by the Recycler per thread (#7701)
• Bump Conscrypt version to 1.0.0 (#7703)
• ByteBufUtil to not pool direct memory by default (#7704)
• NioDatagramChannel invalid usage of internalNioBuffer (#7705)
• Http2MultiplexCodec now propagates SETTINGS and GOAWAY frames in pipeline (#7711)
• Correctly handle the case when converting of value fails and return null or default value (#7715)
• DefaultHeaders / CharSequenceValueConverter should treat boolean consistently (#7720)
• Get memory address from Unsafe for OpenSSL (#7725)
• SSL connection not closed properly after handshake failure (#7727)
• Epoll flush/writabilityChange deadlock (#7730)
• Fix Snappy decoding of large 2-byte literal lengths and copy offsets (#7731)
• Ensure we always release the AddressEnvelope when doing DNS queries. (#7734)

有关详细信息和所有变更内容，请浏览 4.1.22.Final 的问题跟踪器。

重要的变更

HTTP2

该版本将 ping 帧的有效载荷类型由 ByteBuf 改为 long，因为这样可以简化事务，并且 RFC 中关于有效负荷的定义一直是 8 字节。

发布说明：http://netty.io/news/2018/02/21/4-1-22-Final.html

转自 http://ift.tt/2HALd9T

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