go 1.8发布了
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Go 1.8 is released - go 1.8发布了
Chris Broadfoot 16 February 2017
Today the Go team is happy to announce the release of Go 1.8. You can get it from the download page. There are significant performance improvements and changes across the standard library.
今天Go团队很高兴地宣布Go 1.8的发布。您可以从下载页面获得它。整个标准库有明显的性能改进和变化。
The compiler back end introduced in Go 1.7 for 64-bit x86 is now used on all architectures, and those architectures should see significant performance improvements. For instance, the CPU time required by our benchmark programs was reduced by 20-30% on 32-bit ARM systems. There are also some modest performance improvements in this release for 64-bit x86 systems. The compiler and linker have been made faster. Compile times should be improved by about 15% over Go 1.7. There is still more work to be done in this area: expect faster compilation speeds in future releases.
Go 1.7中引入的用于64位x86的编译器后端现在在所有架构上使用，这些架构应该看到明显的性能改进。例如，在32位ARM系统上，我们的基准程序所需的CPU时间减少了20-30%。在这个版本中，对于64位x86系统也有一些适度的性能改进。编译器和链接器的速度变快了。编译时间应该比Go 1.7提高了约15%。在这个领域还有更多的工作要做：期望在未来的版本中能有更快的编译速度。
Garbage collection pauses should be significantly shorter, usually under 100 microseconds and often as low as 10 microseconds.
垃圾收集的停顿时间应该大大缩短，通常在100微秒以下，经常低至10微秒。
The HTTP server adds support for HTTP/2 Push, allowing servers to preemptively send responses to a client. This is useful for minimizing network latency by eliminating roundtrips. The HTTP server also adds support for graceful shutdown, allowing servers to minimize downtime by shutting down only after serving all requests that are in flight.
HTTP服务器增加了对HTTP/2推送的支持，允许服务器抢先向客户端发送响应。这对于通过消除往返而最大限度地减少网络延迟是非常有用的。HTTP服务器还增加了对优雅关机的支持，允许服务器在服务完所有正在运行的请求后才关闭，从而最大限度地减少停机时间。
Contexts (added to the standard library in Go 1.7) provide a cancellation and timeout mechanism. Go 1.8 adds support for contexts in more parts of the standard library, including the database/sql and net packages and Server.Shutdown in the net/http package.
Contexts（在Go 1.7中被添加到标准库中）提供了一个取消和超时机制。Go 1.8在标准库的更多部分增加了对上下文的支持，包括数据库/sql和net包以及net/http包的Server.Shutdown。
It’s now much simpler to sort slices using the newly added Slice function in the sort package. For example, to sort a slice of structs by their Name field:
现在使用排序包中新增加的 Slice 函数对切片进行排序要简单得多。例如，通过名称字段对结构的切片进行排序：
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Go 1.8 includes many more additions, improvements, and fixes. Find the complete set of changes, and more information about the improvements listed above, in the Go 1.8 release notes.
Go 1.8 包括更多的新增内容、改进和修复。在 Go 1.8 发行说明中，可以找到完整的变化，以及有关上述改进的更多信息。
To celebrate the release, Go User Groups around the world are holding release parties this week. Release parties have become a tradition in the Go community, so if you missed out this time, keep an eye out when 1.9 nears.
为了庆祝发布，世界各地的Go用户组将在本周举行发布派对。发布会已经成为Go社区的一个传统，如果您这次错过了，请在1.9来临之际留意。
Thank you to over 200 contributors who helped with this release.
感谢超过200位帮助过这次发布的贡献者。