2019-04-30 11:46:02 -06:00
<!-- {
"Title": "Go 1.13 Release Notes",
"Path": "/doc/go1.13",
"Template": true
}-->
<!--
NOTE: In this document and others in this directory, the convention is to
set fixed-width phrases with non-fixed-width spaces, as in
< code > hello< / code > < code > world< / code > .
Do not send CLs removing the interior tags from such phrases.
-->
< style >
ul li { margin: 0.5em 0; }
< / style >
< h2 id = "introduction" > DRAFT RELEASE NOTES - Introduction to Go 1.13< / h2 >
< p >
< strong >
Go 1.13 is not yet released. These are work-in-progress
release notes. Go 1.13 is expected to be released in August 2019.
< / strong >
< / p >
< p >
TODO
< / p >
< h2 id = "language" > Changes to the language< / h2 >
< p >
TODO
< / p >
< h2 id = "ports" > Ports< / h2 >
< p >
TODO
< / p >
< h3 id = "darwin" > Darwin< / h3 >
< p >
As < a href = "go1.12#darwin" > announced< / a > in the Go 1.12 release notes,
Go 1.13 now requires macOS 10.11 El Capitan or later;
support for previous versions has been discontinued.
< / p >
< h3 id = "freebsd" > FreeBSD< / h3 >
< p >
As < a href = "go1.12#freebsd" > announced< / a > in the Go 1.12 release notes,
Go 1.13 now requires FreeBSD 11.2 or later;
support for previous versions has been discontinued.
FreeBSD 12.0 or later requires a kernel with the COMPAT_FREEBSD11 option set (this is the default).
< / p >
< h2 id = "tools" > Tools< / h2 >
< p >
TODO
< / p >
< h2 id = "runtime" > Runtime< / h2 >
< p >
TODO
< / p >
< h2 id = "library" > Core library< / h2 >
< p >
TODO generally
< / p >
< h3 id = "tls_1_3" > TLS 1.3< / h3 >
< p >
TODO; link to < a href = "/doc/go1.12#tls_1_3" > Go 1.12 notes< / a > .
< / p >
< h3 id = "minor_library_changes" > Minor changes to the library< / h3 >
< p >
As always, there are various minor changes and updates to the library,
made with the Go 1 < a href = "/doc/go1compat" > promise of compatibility< / a >
in mind.
< / p >
< p >
TODO
< / p >
2019-06-05 09:45:01 -06:00
<!-- CL 161904: https://golang.org/cl/161904: cmd/compile: do not export float or complex constants with - asmhdr -->
<!-- CL 167780: https://golang.org/cl/167780: cmd/compile: rename init function from init.ializers back to init -->
<!-- CL 170448: https://golang.org/cl/170448: cmd/compile: enable - newescape by default -->
<!-- CL 174125: https://golang.org/cl/174125: cmd/dist: add support for openbsd/arm64 -->
<!-- CL 177797: https://golang.org/cl/177797: cmd/doc: always print package clause except for commands -->
<!-- CL 173345: https://golang.org/cl/173345: cmd/go: add - trimpath build flag -->
<!-- CL 173438: https://golang.org/cl/173438: cmd/go: change - tags to a comma - separated list -->
<!-- CL 175983: https://golang.org/cl/175983: cmd/go: set the "generate" build tag in go generate, per design doc -->
<!-- CL 167747: https://golang.org/cl/167747: 'go get' in module mode now supports the version suffix '@patch'.: cmd/go/internal/modget: support the suffix '@patch' in 'go get' -->
< dl id = "all" > < dt > < a href = "/pkg/all/" > all< / a > < / dt >
< dd >
< p > <!-- CL 174457 -->
TODO: < a href = "https://golang.org/cl/174457" > https://golang.org/cl/174457< / a > : add new GOOS=illumos, split out of GOOS=solaris
< / p >
< / dl > <!-- all -->
< dl id = "bytes" > < dt > < a href = "/pkg/bytes/" > bytes< / a > < / dt >
< dd >
< p > <!-- CL 161760 -->
TODO: < a href = "https://golang.org/cl/161760" > https://golang.org/cl/161760< / a > : hoist error creation out of function
< / p >
< / dl > <!-- bytes -->
< dl id = "context" > < dt > < a href = "/pkg/context/" > context< / a > < / dt >
< dd >
< p > <!-- CL 169080 -->
TODO: < a href = "https://golang.org/cl/169080" > https://golang.org/cl/169080< / a > : don' t depend on fmt
< / p >
< / dl > <!-- context -->
< dl id = "crypto/ed25519" > < dt > < a href = "/pkg/crypto/ed25519/" > crypto/ed25519< / a > < / dt >
< dd >
< p > <!-- CL 174945 -->
TODO: < a href = "https://golang.org/cl/174945" > https://golang.org/cl/174945< / a > : promote from golang.org/x/crypto/ed25519
< / p >
< / dl > <!-- crypto/ed25519 -->
< dl id = "crypto/tls" > < dt > < a href = "/pkg/crypto/tls/" > crypto/tls< / a > < / dt >
< dd >
< p > <!-- CL 177698 -->
TODO: < a href = "https://golang.org/cl/177698" > https://golang.org/cl/177698< / a > : add support for Ed25519 certificates in TLS 1.2 and 1.3
< / p >
< / dl > <!-- crypto/tls -->
< dl id = "database/sql" > < dt > < a href = "/pkg/database/sql/" > database/sql< / a > < / dt >
< dd >
< p > <!-- CL 170699 -->
TODO: < a href = "https://golang.org/cl/170699" > https://golang.org/cl/170699< / a > : add NullTime
< / p >
< p > <!-- CL 174178 -->
TODO: < a href = "https://golang.org/cl/174178" > https://golang.org/cl/174178< / a > : add NullInt32
< / p >
< / dl > <!-- database/sql -->
< dl id = "debug/dwarf" > < dt > < a href = "/pkg/debug/dwarf/" > debug/dwarf< / a > < / dt >
< dd >
< p > <!-- CL 158797 -->
TODO: < a href = "https://golang.org/cl/158797" > https://golang.org/cl/158797< / a > : more graceful handling of unsupported types
< / p >
< / dl > <!-- debug/dwarf -->
< dl id = "html/template" > < dt > < a href = "/pkg/html/template/" > html/template< / a > < / dt >
< dd >
< p > <!-- CL 175218 -->
TODO: < a href = "https://golang.org/cl/175218" > https://golang.org/cl/175218< / a > : add support for JavaScript modules
< / p >
< / dl > <!-- html/template -->
< dl id = "log" > < dt > < a href = "/pkg/log/" > log< / a > < / dt >
< dd >
< p > <!-- CL 168920 -->
TODO: < a href = "https://golang.org/cl/168920" > https://golang.org/cl/168920< / a > : expose Writer() method of the standard logger
< / p >
< / dl > <!-- log -->
< dl id = "math/big" > < dt > < a href = "/pkg/math/big/" > math/big< / a > < / dt >
< dd >
< p > <!-- CL 160682 -->
TODO: < a href = "https://golang.org/cl/160682" > https://golang.org/cl/160682< / a > : implement Rat.SetUint64
< / p >
< p > <!-- CL 168237 -->
TODO: < a href = "https://golang.org/cl/168237" > https://golang.org/cl/168237< / a > : accept non-decimal floats with Rat.SetString
< / p >
< / dl > <!-- math/big -->
< dl id = "math/bits" > < dt > < a href = "/pkg/math/bits/" > math/bits< / a > < / dt >
< dd >
< p > <!-- CL 178177 -->
TODO: < a href = "https://golang.org/cl/178177" > https://golang.org/cl/178177< / a > : document that Add, Sub, Mul, RotateLeft, ReverseBytes are constant time
< / p >
< / dl > <!-- math/bits -->
< dl id = "net" > < dt > < a href = "/pkg/net/" > net< / a > < / dt >
< dd >
< p > <!-- CL 156366 -->
TODO: < a href = "https://golang.org/cl/156366" > https://golang.org/cl/156366< / a > : use DNS over TCP when use-vc is set in resolv.conf
< / p >
< p > <!-- CL 166297 -->
TODO: < a href = "https://golang.org/cl/166297" > https://golang.org/cl/166297< / a > : use libSystem bindings for DNS resolution on macos if cgo is unavailable
< / p >
< p > <!-- CL 170678 -->
TODO: < a href = "https://golang.org/cl/170678" > https://golang.org/cl/170678< / a > : add KeepAlive field to ListenConfig
< / p >
< / dl > <!-- net -->
< dl id = "net/http" > < dt > < a href = "/pkg/net/http/" > net/http< / a > < / dt >
< dd >
< p > <!-- CL 130256 -->
TODO: < a href = "https://golang.org/cl/130256" > https://golang.org/cl/130256< / a > : introduce DialerAndTLSConfigSupportsHTTP2 in Transport
< / p >
< p > <!-- CL 140357 -->
TODO: < a href = "https://golang.org/cl/140357" > https://golang.org/cl/140357< / a > : make Transport.MaxConnsPerHost work for HTTP/2
< / p >
< p > <!-- CL 154383 -->
TODO: < a href = "https://golang.org/cl/154383" > https://golang.org/cl/154383< / a > : make TimeoutHandler' s ResponseWriter implement Pusher
< / p >
< p > <!-- CL 167681 -->
TODO: < a href = "https://golang.org/cl/167681" > https://golang.org/cl/167681< / a > : add Server BaseContext & ConnContext fields to control early context
< / p >
< p > <!-- CL 173658 -->
TODO: < a href = "https://golang.org/cl/173658" > https://golang.org/cl/173658< / a > : export Header.Clone, reduce its allocations, use it everywhere
< / p >
< / dl > <!-- net/http -->
< dl id = "os" > < dt > < a href = "/pkg/os/" > os< / a > < / dt >
< dd >
< p > <!-- CL 166578 -->
TODO: < a href = "https://golang.org/cl/166578" > https://golang.org/cl/166578< / a > : reject WriteAt if file opened in append mode
< / p >
< / dl > <!-- os -->
< dl id = "os/exec" > < dt > < a href = "/pkg/os/exec/" > os/exec< / a > < / dt >
< dd >
< p > <!-- CL 174318 -->
TODO: < a href = "https://golang.org/cl/174318" > https://golang.org/cl/174318< / a > : always set SYSTEMROOT on Windows if not listed in Cmd.Env
< / p >
< / dl > <!-- os/exec -->
< dl id = "reflect" > < dt > < a href = "/pkg/reflect/" > reflect< / a > < / dt >
< dd >
< p > <!-- CL 171337 -->
TODO: < a href = "https://golang.org/cl/171337" > https://golang.org/cl/171337< / a > : add Value.IsZero
< / p >
< p > <!-- CL 174531 -->
TODO: < a href = "https://golang.org/cl/174531" > https://golang.org/cl/174531< / a > : MakeFunc: allow assignment conversions on values returned from the wrapped function
< / p >
< / dl > <!-- reflect -->
< dl id = "runtime" > < dt > < a href = "/pkg/runtime/" > runtime< / a > < / dt >
< dd >
< p > <!-- CL 170318 -->
TODO: < a href = "https://golang.org/cl/170318" > https://golang.org/cl/170318< / a > : randomize package initialization order in race mode
< / p >
< / dl > <!-- runtime -->
< dl id = "runtime, internal/poll, net" > < dt > < a href = "/pkg/runtime, internal/poll, net/" > runtime, internal/poll, net< / a > < / dt >
< dd >
< p > <!-- CL 166497 -->
TODO: < a href = "https://golang.org/cl/166497" > https://golang.org/cl/166497< / a > : report event scanning error on read event
< / p >
< / dl > <!-- runtime, internal/poll, net -->
< dl id = "runtime/cgo" > < dt > < a href = "/pkg/runtime/cgo/" > runtime/cgo< / a > < / dt >
< dd >
< p > <!-- CL 170127 -->
TODO: < a href = "https://golang.org/cl/170127" > https://golang.org/cl/170127< / a > : look for android_get_device_api_level in libc.so
< / p >
< / dl > <!-- runtime/cgo -->
< dl id = "strings, bytes" > < dt > < a href = "/pkg/strings, bytes/" > strings, bytes< / a > < / dt >
< dd >
< p > <!-- CL 142003 -->
TODO: < a href = "https://golang.org/cl/142003" > https://golang.org/cl/142003< / a > : add ToValidUTF8
< / p >
< / dl > <!-- strings, bytes -->
< dl id = "sync" > < dt > < a href = "/pkg/sync/" > sync< / a > < / dt >
< dd >
< p > <!-- CL 166960 -->
TODO: < a href = "https://golang.org/cl/166960" > https://golang.org/cl/166960< / a > : use lock-free structure for Pool stealing
< / p >
< p > <!-- CL 166961 -->
TODO: < a href = "https://golang.org/cl/166961" > https://golang.org/cl/166961< / a > : smooth out Pool behavior over GC with a victim cache
< / p >
< / dl > <!-- sync -->
< dl id = "syscall" > < dt > < a href = "/pkg/syscall/" > syscall< / a > < / dt >
< dd >
< p > <!-- CL 168479 -->
TODO: < a href = "https://golang.org/cl/168479" > https://golang.org/cl/168479< / a > : avoid _getdirentries64 on darwin
< / p >
< p > <!-- CL 174197 -->
TODO: < a href = "https://golang.org/cl/174197" > https://golang.org/cl/174197< / a > : allow setting security attributes on processes
< / p >
< p > <!-- CL 174320 -->
TODO: < a href = "https://golang.org/cl/174320" > https://golang.org/cl/174320< / a > : don' t return EINVAL on zero Chmod mode on Windows
< / p >
< / dl > <!-- syscall -->
< dl id = "syscall/js" > < dt > < a href = "/pkg/syscall/js/" > syscall/js< / a > < / dt >
< dd >
< p > <!-- CL 177537 -->
TODO: < a href = "https://golang.org/cl/177537" > https://golang.org/cl/177537< / a > : replace TypedArrayOf with CopyBytesToGo/CopyBytesToJS
< / p >
< / dl > <!-- syscall/js -->
< dl id = "testing" > < dt > < a href = "/pkg/testing/" > testing< / a > < / dt >
< dd >
< p > <!-- CL 112155 -->
TODO: < a href = "https://golang.org/cl/112155" > https://golang.org/cl/112155< / a > : stop rounding b.N
< / p >
< p > <!-- CL 166717 -->
TODO: < a href = "https://golang.org/cl/166717" > https://golang.org/cl/166717< / a > : add B.ReportMetric for custom benchmark metrics
< / p >
< p > <!-- CL 173722 -->
TODO: < a href = "https://golang.org/cl/173722" > https://golang.org/cl/173722< / a > : delay flag registration; move to an Init function
< / p >
< / dl > <!-- testing -->
< dl id = "text/scanner" > < dt > < a href = "/pkg/text/scanner/" > text/scanner< / a > < / dt >
< dd >
< p > <!-- CL 163079 -->
TODO: < a href = "https://golang.org/cl/163079" > https://golang.org/cl/163079< / a > : don' t liberally consume (invalid) floats or underbars
< / p >
< / dl > <!-- text/scanner -->
< dl id = "text/template" > < dt > < a href = "/pkg/text/template/" > text/template< / a > < / dt >
< dd >
< p > <!-- CL 161762 -->
TODO: < a href = "https://golang.org/cl/161762" > https://golang.org/cl/161762< / a > : add a slice function to the predefined global functions
< / p >
< / dl > <!-- text/template -->
< dl id = "time" > < dt > < a href = "/pkg/time/" > time< / a > < / dt >
< dd >
< p > <!-- CL 122876 -->
TODO: < a href = "https://golang.org/cl/122876" > https://golang.org/cl/122876< / a > : add support for day-of-year in Format and Parse
< / p >
< p > <!-- CL 167387 -->
TODO: < a href = "https://golang.org/cl/167387" > https://golang.org/cl/167387< / a > : add methods to convert duration to microseconds and milliseconds
< / p >
< / dl > <!-- time -->
