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Diffstat (limited to 'doc/go1.7.html')
| -rw-r--r-- | doc/go1.7.html | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/doc/go1.7.html b/doc/go1.7.html index d209a5ab0e..7e17ff2424 100644 --- a/doc/go1.7.html +++ b/doc/go1.7.html @@ -75,6 +75,13 @@ This change has no effect on the correctness of existing programs. <h2 id="ports">Ports</h2> <p> +Go 1.7 adds support for macOS 10.12 Sierra. +This support was backported to Go 1.6.3. +Binaries built with versions of Go before 1.6.3 will not work +correctly on Sierra. +</p> + +<p> Go 1.7 adds an experimental port to <a href="https://en.wikipedia.org/wiki/Linux_on_z_Systems">Linux on z Systems</a> (<code>linux/s390x</code>) and the beginning of a port to Plan 9 on ARM (<code>plan9/arm</code>). </p> @@ -85,14 +92,27 @@ added in Go 1.6 now have full support for cgo and external linking. </p> <p> -The experimental port to Linux on big-endian 64-bit PowerPC (<code>linux/ppc64</code>) +The experimental port to Linux on little-endian 64-bit PowerPC (<code>linux/ppc64le</code>) now requires the POWER8 architecture or later. +Big-endian 64-bit PowerPC (<code>linux/ppc64</code>) only requires the +POWER5 architecture. </p> <p> The OpenBSD port now requires OpenBSD 5.6 or later, for access to the <a href="http://man.openbsd.org/getentropy.2"><i>getentropy</i>(2)</a> system call. </p> +<h3 id="known_issues">Known Issues</h3> + +<p> +There are some instabilities on FreeBSD that are known but not understood. +These can lead to program crashes in rare cases. +See <a href="https://golang.org/issue/16136">issue 16136</a>, +<a href="https://golang.org/issue/15658">issue 15658</a>, +and <a href="https://golang.org/issue/16396">issue 16396</a>. +Any help in solving these FreeBSD-specific issues would be appreciated. +</p> + <h2 id="tools">Tools</h2> <h3 id="cmd_asm">Assembler</h3> @@ -367,6 +387,12 @@ and packages. </p> +<p> +Garbage collection pauses should be significantly shorter than they +were in Go 1.6 for programs with large numbers of idle goroutines, +substantial stack size fluctuation, or large package-level variables. +</p> + <h2 id="library">Core library</h2> <h3 id="context">Context</h3> @@ -463,6 +489,13 @@ common in some environments. </p> <p> +The runtime can now return unused memory to the operating system on +all architectures. +In Go 1.6 and earlier, the runtime could not +release memory on ARM64, 64-bit PowerPC, or MIPS. +</p> + +<p> On Windows, Go programs in Go 1.5 and earlier forced the global Windows timer resolution to 1ms at startup by calling <code>timeBeginPeriod(1)</code>. @@ -884,6 +917,12 @@ For example, the address on which a request received is </p> <p> +The server's <a href="/pkg/net/http/#Server.Serve"><code>Serve</code></a> method +now only enables HTTP/2 support if the <code>Server.TLSConfig</code> field is <code>nil</code> +or includes <code>"h2"</code> in its <code>TLSConfig.NextProto</code>. +</p> + +<p> The server implementation now pads response codes less than 100 to three digits as required by the protocol, |