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doc/go1.3.html: new release document outline
Almost all TODOS, but the structure is there and it has the details from go1.3.txt, which is hereby deleted. LGTM=dominik.honnef, adg R=golang-codereviews, dominik.honnef, adg CC=golang-codereviews https://golang.org/cl/80240044
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Rob Pike
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doc/go1.3.html
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doc/go1.3.html
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<!--{
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"Title": "Go 1.3 Release Notes",
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"Path": "/doc/go1.3",
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"Template": true
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}-->
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<h2 id="introduction">Introduction to Go 1.3</h2>
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<p>
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The latest Go release, version 1.3, arrives six months after 1.2,
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and contains no language changes.
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It does have some important developments, though,
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including a refinement to the memory model regarding synchronization,
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precise garbage collection,
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significant performance improvements,
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including TODO,
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and support for Google's Native Client architecture (NaCl).
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As always, Go 1.3 keeps the <a href="/doc/go1compat.html">promise
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of compatibility</a>,
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and almost everything
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will continue to compile and run without change when moved to 1.3.
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</p>
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<h2 id="os">Changes to the supported operating systems and architectures</h2>
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<h3 id="nacl">Support for Native Client</h3>
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<p>
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TODO
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</p>
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<h3 id="solaris">Support for Solaris</h3>
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<p>
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TODO
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</p>
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<h3 id="windows2000">Removal of support for Windows 2000</h3>
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<p>
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TODO
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windows 2000 removed (CL 74790043)
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</p>
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<h2 id="memory">Changes to the memory model</h2>
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<p>
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TODO:
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early go documentation suggested using a channel as a semaphore like this: (previous example).
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the go memory model has been updated to make explicit that this idiom is allowed. (new example).
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the previous example is also correct, just requiring needless func init work.
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(CL 75130045)
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</p>
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<h2 id="impl">Changes to the implementations and tools</h2>
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<h3 id="stacks">Stack</h3>
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<p>
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TODO stack copying, no longer segmented
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</p>
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<h3 id="stack_size">Stack size</h3>
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<p>
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Go 1.2 increased the minimum stack size to 8 kilobytes; with the new stack model, it has been
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put back to 4 kilobytes.
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</p>
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<p>
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<em>Updating</em>: TODO
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</p>
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<h3 id="garbage_collector">Changes to the garbage collector</h3>
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<p>
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precision (TODO what to say)
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liveness (TODO what to say)
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</p>
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<h3 id="liblink">The linker</h3>
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<p>
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TODO compiler/linker boundary moved
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</p>
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<p>
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<em>Updating</em>: TODO
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</p>
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<h3 id="gccgo">Status of gccgo</h3>
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<p>
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TODO
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</p>
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<h3 id="gocmd">Changes to the go command</h3>
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<p>
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TODO
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cmd/go, go/build: support .m files (CL 60590044)
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cmd/go: add -exec to 'go run' and 'go test' (CL 68580043)
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cmd/go: cover -atomic for -race (CL 76370043)
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</p>
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<h3 id="misc">Miscellany</h3>
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<ul>
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<li> TODO: misc/benchcmp: removed and replaced by go.tools/cmd/benchcmp (CL 47980043)</li>
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<li> TODO: misc/dist: renamed misc/makerelease (CL 39920043)</li>
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</ul>
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<h2 id="performance">Performance</h2>
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<p>
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TODO
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</p>
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<ul>
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<li>
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TODO
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</li>
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</ul>
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<h2 id="library">Changes to the standard library</h2>
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<p>
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TODO: Which should be called out?
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</p>
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<h3 id="new_packages">New packages</h3>
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<p>
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There is one new package added to the standard library: <a href="/pkg/sync/pool/"><code>sync/pool</code></a>.
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TODO: sync: add Pool (CL 41860043, 46010043)
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</p>
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<h3 id="minor_library_changes">Minor changes to the library</h3>
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<p>
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The following list summarizes a number of minor changes to the library, mostly additions.
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See the relevant package documentation for more information about each change.
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</p>
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<ul>
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<li> TODO: cmplx.Pow(0, x): https://codereview.appspot.com/76940044</li>
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<li> TODO: crypto/tls: ServerName or InsecureSkipVerify (CL 67010043)</li>
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<li> TODO: crypto/tls: add DialWithDialer (CL 68920045)</li>
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<li> TODO: crypto/tls: report TLS version in ConnectionState (CL 68250043)</li>
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<li> TODO: crypto/x509: support CSRs (CL 49830048)</li>
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<li> TODO: fmt %F: 77580044</li>
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<li> TODO: liblink: pull linker i/o into separate liblink C library (CL 35790044)</li>
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<li> TODO: net/http: add Request.TLS (CL 52660047)</li>
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<li> TODO: net/http: add Server.ErrorLog; log and test TLS handshake errors (CL 70250044)</li>
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<li> TODO: net/http: add Server.SetKeepAlivesEnabled (CL 69670043)</li>
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<li> TODO: net/http: add Transport.TLSHandshakeTimeout; set it by default (CL 68150045)</li>
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<li> TODO: net/http: add optional Server.ConnState callback (CL 69260044)</li>
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<li> TODO: net/http: use TCP Keep-Alives on DefaultTransport's connections (CL 68330046)</li>
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<li> TODO: net/http: use TCP keep-alives for ListenAndServe and ListenAndServeTLS (CL 48300043)</li>
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<li> TODO: net: add Dialer.KeepAlive option (CL 68380043)</li>
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<li> TODO: net: enable fast socket creation using SOCK_CLOEXEC and Accept4 on FreeBSD 10 (69100043)</li>
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<li> TODO: os/exec: fix Command with relative paths (CL 59580044)</li>
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<li> TODO: regexp: add one-pass optimization from RE2 (CL 13345046)</li>
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<li> TODO: runtime/debug: add SetPanicOnFault (CL 66590044)</li>
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<li> TODO: runtime: output how long goroutines are blocked (CL 50420043)</li>
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<li> TODO: runtime: better handling of defers, reduces goroutine memory footprint by 2K (CL 42750044)</li>
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<li> TODO: runtime: faster GC: concurrent sweep, better parallelization, 8K pages (up to 50-70% pause reduction) (CL 46430043, 46860043, 58230043)</li>
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<li> TODO: runtime/race: faster by ~40% (CL 55100044)</li>
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<li> TODO: strconv.CanBackquote rejects U+007F CL 77300043</li>
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<li> TODO: syscall: add Accept4 for freebsd (CL 68880043)</li>
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<li> TODO: syscall: add NewCallbackCDecl to use for windows callbacks (CL 36180044)</li>
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<li> TODO: syscall: add support for FreeBSD 10 (CL 56770044, 56980043)</li>
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<li> TODO: testing: add b.RunParallel function (CL 57270043)</li>
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<li> TODO: testing: diagnose buggy tests that panic(nil) (CL 55780043)</li>
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<li> TODO: unicode: upgrade from Unicode 6.2.0 to 6.3.0 (CL 65400044)</li>
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</ul>
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@ -1,38 +0,0 @@
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cmd/go, go/build: support .m files (CL 60590044)
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cmd/go: add -exec to 'go run' and 'go test' (CL 68580043)
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cmd/gofmt: remove -tabwidth and -tabs flags (CL 52170043)
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crypto/tls: ServerName or InsecureSkipVerify (CL 67010043)
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crypto/tls: add DialWithDialer (CL 68920045)
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crypto/tls: report TLS version in ConnectionState (CL 68250043)
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crypto/x509: support CSRs (CL 49830048)
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liblink: pull linker i/o into separate liblink C library (CL 35790044)
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misc/benchcmp: removed and replaced by go.tools/cmd/benchcmp (CL 47980043)
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misc/dist: renamed misc/makerelease (CL 39920043)
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net/http: add Request.TLS (CL 52660047)
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net/http: add Server.ErrorLog; log and test TLS handshake errors (CL 70250044)
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net/http: add Server.SetKeepAlivesEnabled (CL 69670043)
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net/http: add Transport.TLSHandshakeTimeout; set it by default (CL 68150045)
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net/http: add optional Server.ConnState callback (CL 69260044)
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net/http: use TCP Keep-Alives on DefaultTransport's connections (CL 68330046)
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net/http: use TCP keep-alives for ListenAndServe and ListenAndServeTLS (CL 48300043)
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net: add Dialer.KeepAlive option (CL 68380043)
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net: enable fast socket creation using SOCK_CLOEXEC and Accept4 on FreeBSD 10 (69100043)
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os/exec: fix Command with relative paths (CL 59580044)
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regexp: add one-pass optimization from RE2 (CL 13345046)
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runtime/debug: add SetPanicOnFault (CL 66590044)
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runtime: output how long goroutines are blocked (CL 50420043)
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runtime: better handling of defers, reduces goroutine memory footprint by 2K (CL 42750044)
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runtime: faster GC: concurrent sweep, better parallelization, 8K pages (up to 50-70% pause reduction) (CL 46430043, 46860043, 58230043)
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runtime/race: faster by ~40% (CL 55100044)
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sync: add Pool (CL 41860043, 46010043)
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syscall: add Accept4 for freebsd (CL 68880043)
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syscall: add NewCallbackCDecl to use for windows callbacks (CL 36180044)
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syscall: add support for FreeBSD 10 (CL 56770044, 56980043)
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testing: add b.RunParallel function (CL 57270043)
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testing: diagnose buggy tests that panic(nil) (CL 55780043)
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unicode: upgrade from Unicode 6.2.0 to 6.3.0 (CL 65400044)
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Additional notes:
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- support for Windows 2000 removed (CL 74790043)
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- copying stack support; initial stack size 4kB again.
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- liveness analysis in garbage collector
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