2023-07-18 14:55:13 -06:00
<!-- {
"Title": "Go 1.22 Release Notes",
"Path": "/doc/go1.22"
}-->
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< h2 id = "introduction" > DRAFT RELEASE NOTES — Introduction to Go 1.22< / h2 >
< p >
< strong >
Go 1.22 is not yet released. These are work-in-progress
release notes. Go 1.22 is expected to be released in February 2024.
< / strong >
< / p >
< h2 id = "language" > Changes to the language< / h2 >
< p >
TODO: complete this section
< / p >
< h2 id = "tools" > Tools< / h2 >
< h3 id = "go-command" > Go command< / h3 >
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<!-- https://go.dev/issue/60056 -->
2023-07-18 14:55:13 -06:00
< p >
2023-11-22 13:37:13 -07:00
<!-- support vendoring in workspace mode -->
< / p >
<!-- CL 518775 -->
< p >
<!-- cmd/go: delete GOPATH - mode get -->
< / p >
<!-- https://go.dev/issue/60915 -->
< p >
<!-- preserve basic GOPATH mode indefinitely -->
< / p >
<!-- CL 518776 -->
< p >
<!-- cmd/go: remove conversion of legacy pre - module dependency configs -->
2023-07-18 14:55:13 -06:00
< / p >
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< h3 id = "cgo" > Cgo< / h3 >
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<!-- https://go.dev/issue/56378 -->
< p >
<!-- add #cgo noescape/nocallback annotations -->
< / p >
< h3 id = "vet" > Vet< / h3 >
< p > <!-- CL 539016 -->
TODO: < a href = "https://go.dev/cl/539016" > https://go.dev/cl/539016< / a > : go/analysis/passes/loopclosure: disable checker after go1.22.; loopclosure was modified to only not report in files with GoVersion after 1.22.
< / p >
<!-- CL 527095 -->
< p >
<!-- cmd/vet: add defers analysis pass; Add a release note that there is a new defers checker in cmd/vet. -->
< / p >
<!-- https://go.dev/issue/60048 -->
< p >
<!-- time.Since should not be used in defer statement -->
< / p >
<!-- https://go.dev/issue/60448 -->
< p >
<!-- add a new analyzer for check missing values after append -->
< / p >
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< h2 id = "runtime" > Runtime< / h2 >
< p >
TODO: complete this section, or delete if not needed
< / p >
< h2 id = "compiler" > Compiler< / h2 >
< p >
TODO: complete this section, or delete if not needed
< / p >
< h2 id = "linker" > Linker< / h2 >
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< p > <!-- https://go.dev/issue/62577 -->
TODO: < a href = "https://go.dev/issue/62577" > https://go.dev/issue/62577< / a > : cmd/link, cmd/go: emit split DWARF on darwin
< / p >
<!-- CL 461697 -->
< p >
<!-- cmd/go: default to PIE linking on darwin/amd64 -->
< / p >
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< p >
TODO: complete this section, or delete if not needed
< / p >
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< h2 id = "bootstrap" > Bootstrap< / h2 >
< p >
As mentioned in the < a href = "/doc/go1.20#bootstrap" > Go 1.20 release notes< / a > , Go 1.22 now requires
the final point release of Go 1.20 or later for bootstrap.
We expect that Go 1.24 will require the final point release of Go 1.22 or later for bootstrap.
< / p >
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< h2 id = "library" > Core library< / h2 >
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< h3 id = "minor_library_changes" > New math/rand/v2 package< / h3 >
< p > <!-- CL 502495 -->
TODO: < a href = "https://go.dev/cl/502495" > https://go.dev/cl/502495< / a > : math/rand/v2: start of new API; modified api/next/61716.txt
< / p >
< p > <!-- CL 502497 -->
TODO: < a href = "https://go.dev/cl/502497" > https://go.dev/cl/502497< / a > : math/rand/v2: remove Read; modified api/next/61716.txt
< / p >
< p > <!-- CL 502498 -->
TODO: < a href = "https://go.dev/cl/502498" > https://go.dev/cl/502498< / a > : math/rand/v2: remove Rand.Seed; modified api/next/61716.txt
< / p >
< p > <!-- CL 502499 -->
TODO: < a href = "https://go.dev/cl/502499" > https://go.dev/cl/502499< / a > : math/rand/v2: change Source to use uint64; modified api/next/61716.txt
< / p >
< p > <!-- CL 502500 -->
TODO: < a href = "https://go.dev/cl/502500" > https://go.dev/cl/502500< / a > : math/rand/v2: add, optimize N, UintN, Uint32N, Uint64N; modified api/next/61716.txt
< / p >
< p > <!-- CL 502505 -->
TODO: < a href = "https://go.dev/cl/502505" > https://go.dev/cl/502505< / a > : math/rand/v2: add PCG-DXSM; modified api/next/61716.txt
< / p >
< p > <!-- CL 502506 -->
TODO: < a href = "https://go.dev/cl/502506" > https://go.dev/cl/502506< / a > : math/rand/v2: delete Mitchell/Reeds source; modified api/next/61716.txt
< / p >
< p > <!-- CL 516857 -->
TODO: < a href = "https://go.dev/cl/516857" > https://go.dev/cl/516857< / a > : math/rand/v2: rename various functions; modified api/next/61716.txt
< / p >
< p > <!-- CL 516859 -->
TODO: < a href = "https://go.dev/cl/516859" > https://go.dev/cl/516859< / a > : math/rand/v2: add ChaCha8; modified api/next/61716.txt
< / p >
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< 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.
There are also various performance improvements, not enumerated here.
< / p >
< p >
TODO: complete this section
< / p >
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< dl id = "archive/tar" > < dt > < a href = "/pkg/archive/tar/" > archive/tar< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/50102 -->
TODO: < a href = "https://go.dev/issue/50102" > https://go.dev/issue/50102< / a > : add FileInfoNames interface
< / p >
< p > <!-- https://go.dev/issue/58000 -->
TODO: < a href = "https://go.dev/issue/58000" > https://go.dev/issue/58000< / a > : add (*Writer).AddFS
< / p >
< p > <!-- CL 513316 -->
TODO: < a href = "https://go.dev/cl/513316" > https://go.dev/cl/513316< / a > : archive/tar: add AddFS method to Writer; modified api/next/58000.txt
< / p >
< p > <!-- CL 514235 -->
TODO: < a href = "https://go.dev/cl/514235" > https://go.dev/cl/514235< / a > : archive/tar: add FileInfoNames interface; modified api/next/50102.txt
< / p >
< / dd >
< / dl > <!-- archive/tar -->
< dl id = "bufio" > < dt > < a href = "/pkg/bufio/" > bufio< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/56381 -->
TODO: < a href = "https://go.dev/issue/56381" > https://go.dev/issue/56381< / a > : allow terminating Scanner early cleanly without a final token or an error
< / p >
< / dd >
< / dl > <!-- bufio -->
< dl id = "cmd" > < dt > < a href = "/pkg/cmd/" > cmd< / a > < / dt >
< dd >
< p > <!-- CL 498416 -->
TODO: < a href = "https://go.dev/cl/498416" > https://go.dev/cl/498416< / a > : cmd: add a new analyzer for check missing values after append
< / p >
< / dd >
< / dl > <!-- cmd -->
< dl id = "cmp" > < dt > < a href = "/pkg/cmp/" > cmp< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/60204 -->
TODO: < a href = "https://go.dev/issue/60204" > https://go.dev/issue/60204< / a > : add Or
< / p >
< p > <!-- CL 504883 -->
TODO: < a href = "https://go.dev/cl/504883" > https://go.dev/cl/504883< / a > : cmp: add Or; modified api/next/60204.txt
< / p >
< / dd >
< / dl > <!-- cmp -->
< dl id = "crypto/tls" > < dt > < a href = "/pkg/crypto/tls/" > crypto/tls< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/43922 -->
TODO: < a href = "https://go.dev/issue/43922" > https://go.dev/issue/43922< / a > : implement RFC7627
< / p >
< p > <!-- https://go.dev/issue/60107 -->
TODO: < a href = "https://go.dev/issue/60107" > https://go.dev/issue/60107< / a > : QUIC 0-RTT APIs
< / p >
< p > <!-- https://go.dev/issue/62459 -->
TODO: < a href = "https://go.dev/issue/62459" > https://go.dev/issue/62459< / a > : make default minimum version for servers TLS 1.2
< / p >
< p > <!-- https://go.dev/issue/63413 -->
TODO: < a href = "https://go.dev/issue/63413" > https://go.dev/issue/63413< / a > : disable RSA key exchange cipher suites by default
< / p >
< p > <!-- CL 514997 -->
TODO: < a href = "https://go.dev/cl/514997" > https://go.dev/cl/514997< / a > : crypto/tls: change SendSessionTicket to take an options struct; modified api/go1.21.txt
< / p >
< p > <!-- CL 541516 -->
TODO: < a href = "https://go.dev/cl/541516" > https://go.dev/cl/541516< / a > : crypto/tls: change default minimum version to 1.2
< / p >
< p > <!-- CL 541517 -->
TODO: < a href = "https://go.dev/cl/541517" > https://go.dev/cl/541517< / a > : crypto/tls: remove RSA KEX ciphers from the default list
< / p >
< p > <!-- CL 544155 -->
TODO: < a href = "https://go.dev/cl/544155" > https://go.dev/cl/544155< / a > : crypto/tls: disable ExportKeyingMaterial without EMS
< / p >
< / dd >
< / dl > <!-- crypto/tls -->
< dl id = "crypto/x509" > < dt > < a href = "/pkg/crypto/x509/" > crypto/x509< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/57178 -->
TODO: < a href = "https://go.dev/issue/57178" > https://go.dev/issue/57178< / a > : support code-constrained roots
< / p >
< p > <!-- https://go.dev/issue/58922 -->
TODO: < a href = "https://go.dev/issue/58922" > https://go.dev/issue/58922< / a > : add android user trusted CA folder as a possible source for certificate retrieval
< / p >
< p > <!-- https://go.dev/issue/60665 -->
TODO: < a href = "https://go.dev/issue/60665" > https://go.dev/issue/60665< / a > : introduce new robust OID type & use it for certificate policies
< / p >
< p > <!-- CL 519315 -->
TODO: < a href = "https://go.dev/cl/519315" > https://go.dev/cl/519315< / a > : crypto/x509: implement AddCertWithConstraint; modified api/next/57178.txt
< / p >
< p > <!-- CL 520535 -->
TODO: < a href = "https://go.dev/cl/520535" > https://go.dev/cl/520535< / a > : crypto/x509: add new OID type and use it in Certificate; modified api/next/60665.txt
< / p >
< / dd >
< / dl > <!-- crypto/x509 -->
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< dl id = "database/sql" > < dt > < a href = "/pkg/database/sql/" > database/sql< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/60370, CL 501700 -->
The new < a href = "/pkg/database/sql/#Null" > < code > Null[T]< / code > < / a > type
provide a way to scan nullable columns for any column types.
< / p >
< / dd >
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< / dl > <!-- database/sql -->
< dl id = "encoding" > < dt > < a href = "/pkg/encoding/" > encoding< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/53693 -->
TODO: < a href = "https://go.dev/issue/53693" > https://go.dev/issue/53693< / a > : provide append-like variants
< / p >
< p > <!-- CL 504884 -->
TODO: < a href = "https://go.dev/cl/504884" > https://go.dev/cl/504884< / a > : encoding: add AppendEncode and AppendDecode; modified api/next/53693.txt
< / p >
< p > <!-- CL 505236 -->
TODO: < a href = "https://go.dev/cl/505236" > https://go.dev/cl/505236< / a > : encoding: reject negative runes in Encoding.WithPadding; Providing a negative rune to Encoding.WithPadding other than NoPadding made no semantic sense, and will now panic.
< / p >
< / dd >
< / dl > <!-- encoding -->
< dl id = "encoding/binary" > < dt > < a href = "/pkg/encoding/binary/" > encoding/binary< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/57237 -->
TODO: < a href = "https://go.dev/issue/57237" > https://go.dev/issue/57237< / a > : add var NativeEndian; also x/sys/cpu.IsBigEndian
< / p >
< / dd >
< / dl > <!-- encoding/binary -->
< dl id = "go/ast" > < dt > < a href = "/pkg/go/ast/" > go/ast< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/52463 -->
TODO: < a href = "https://go.dev/issue/52463" > https://go.dev/issue/52463< / a > : formally deprecate Object
< / p >
< p > <!-- CL 504915 -->
TODO: < a href = "https://go.dev/cl/504915" > https://go.dev/cl/504915< / a > : go/ast: deprecate Object; modified api/go1.21.txt
< / p >
< / dd >
< / dl > <!-- go/ast -->
< dl id = "go/types" > < dt > < a href = "/pkg/go/types/" > go/types< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/62037 -->
TODO: < a href = "https://go.dev/issue/62037" > https://go.dev/issue/62037< / a > : add Info.PkgName method
< / p >
< p > <!-- https://go.dev/issue/62605 -->
TODO: < a href = "https://go.dev/issue/62605" > https://go.dev/issue/62605< / a > : Export Info.FileVersions for access to file-specific version information
< / p >
< p > <!-- https://go.dev/issue/63223 -->
TODO: < a href = "https://go.dev/issue/63223" > https://go.dev/issue/63223< / a > : API changes to support explicit Alias nodes
< / p >
< p > <!-- CL 540056 -->
TODO: < a href = "https://go.dev/cl/540056" > https://go.dev/cl/540056< / a > : go/types: export Info.FileVersions; modified api/next/62605.txt
< / p >
< p > <!-- https://go.dev/issue/61035 -->
TODO: < a href = "https://go.dev/issue/61035" > https://go.dev/issue/61035< / a > : go/types, types2: fix SizesFor(" gc" , ...) to match actual gc behavior
< / p >
< p > <!-- CL 541575 -->
TODO: < a href = "https://go.dev/cl/541575" > https://go.dev/cl/541575< / a > : go/types, types2: implement Info.PkgNameOf; modified api/next/62037.txt
< / p >
< p > <!-- CL 541737 -->
TODO: < a href = "https://go.dev/cl/541737" > https://go.dev/cl/541737< / a > : go/types, types2: implement Alias proposal (export API); modified api/next/63223.txt
< / p >
< / dd >
< / dl > <!-- go/types -->
< dl id = "go/version" > < dt > < a href = "/pkg/go/version/" > go/version< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/62039 -->
TODO: < a href = "https://go.dev/issue/62039" > https://go.dev/issue/62039< / a > : package for handling Go version strings
< / p >
< p > <!-- CL 538895 -->
TODO: < a href = "https://go.dev/cl/538895" > https://go.dev/cl/538895< / a > : go/version: add new package; modified api/next/62039.txt
< / p >
< / dd >
< / dl > <!-- go/version -->
< dl id = "html/template" > < dt > < a href = "/pkg/html/template/" > html/template< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61619 -->
TODO: < a href = "https://go.dev/issue/61619" > https://go.dev/issue/61619< / a > : allow actions in JS template literals
< / p >
< p > <!-- CL 507995 -->
TODO: < a href = "https://go.dev/cl/507995" > https://go.dev/cl/507995< / a > : html/template: support parsing complex JS template literals; modified api/next/61619.txt
< / p >
< / dd >
< / dl > <!-- html/template -->
< dl id = "io" > < dt > < a href = "/pkg/io/" > io< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61870 -->
TODO: < a href = "https://go.dev/issue/61870" > https://go.dev/issue/61870< / a > : add SectionReader.Outer method
< / p >
< p > <!-- CL 526855 -->
TODO: < a href = "https://go.dev/cl/526855" > https://go.dev/cl/526855< / a > : io: add (*SectionReader).Outer(); modified api/next/61870.txt
< / p >
< / dd >
< / dl > <!-- io -->
< dl id = "log/slog" > < dt > < a href = "/pkg/log/slog/" > log/slog< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/62418 -->
TODO: < a href = "https://go.dev/issue/62418" > https://go.dev/issue/62418< / a > : enable setting level on default log.Logger
< / p >
< p > <!-- CL 525096 -->
TODO: < a href = "https://go.dev/cl/525096" > https://go.dev/cl/525096< / a > : log/slog: add LogLoggerLevel to enable setting level on the default logger; modified api/next/62418.txt
< / p >
< / dd >
< / dl > <!-- log/slog -->
< dl id = "math/big" > < dt > < a href = "/pkg/math/big/" > math/big< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/50489 -->
TODO: < a href = "https://go.dev/issue/50489" > https://go.dev/issue/50489< / a > : Rat: add FloatPrec() (int, bool)
< / p >
< p > <!-- CL 539299 -->
TODO: < a href = "https://go.dev/cl/539299" > https://go.dev/cl/539299< / a > : math/big: implement Rat.FloatPrec; modified api/next/50489.txt
< / p >
< / dd >
< / dl > <!-- math/big -->
< dl id = "net" > < dt > < a href = "/pkg/net/" > net< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/58808 -->
TODO: < a href = "https://go.dev/issue/58808" > https://go.dev/issue/58808< / a > : arrange zero-copy of os.File and TCPConn to UnixConn
< / p >
< p > <!-- CL 467335 -->
TODO: < a href = "https://go.dev/cl/467335" > https://go.dev/cl/467335< / a > : net: respect hosts file when resolving names for Windows
< / p >
< / dd >
< / dl > <!-- net -->
< dl id = "net/http" > < dt > < a href = "/pkg/net/http/" > net/http< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/51971 -->
TODO: < a href = "https://go.dev/issue/51971" > https://go.dev/issue/51971< / a > : add ServeFileFS, FileServerFS, NewFileTransportFS
< / p >
< p > <!-- https://go.dev/issue/61410 -->
TODO: < a href = "https://go.dev/issue/61410" > https://go.dev/issue/61410< / a > : enhanced ServeMux routing
< / p >
< p > <!-- CL 513956 -->
TODO: < a href = "https://go.dev/cl/513956" > https://go.dev/cl/513956< / a > : net/http: add ServeFileFS, FileServerFS, NewFileTransportFS; modified api/next/51971.txt
< / p >
< p > <!-- CL 517336 -->
TODO: < a href = "https://go.dev/cl/517336" > https://go.dev/cl/517336< / a > : net/http: disallow empty Content-Length header
< / p >
< p > <!-- CL 528355 -->
TODO: < a href = "https://go.dev/cl/528355" > https://go.dev/cl/528355< / a > : net/http: implement path value methods on Request; modified api/next/61410.txt
< / p >
< / dd >
< / dl > <!-- net/http -->
< dl id = "net/http/cgi" > < dt > < a href = "/pkg/net/http/cgi/" > net/http/cgi< / a > < / dt >
< dd >
< p > <!-- CL 539615 -->
TODO: < a href = "https://go.dev/cl/539615" > https://go.dev/cl/539615< / a > : net/http/cgi: the PATH_INFO should be empty or start with a slash
< / p >
< / dd >
< / dl > <!-- net/http/cgi -->
< dl id = "net/netip" > < dt > < a href = "/pkg/net/netip/" > net/netip< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61642 -->
TODO: < a href = "https://go.dev/issue/61642" > https://go.dev/issue/61642< / a > : add Prefix.Compare and AddrPort.Compare
< / p >
< p > <!-- CL 524616 -->
TODO: < a href = "https://go.dev/cl/524616" > https://go.dev/cl/524616< / a > : net/netip: add AddrPort.Compare and Prefix.Compare; modified api/next/61642.txt
< / p >
< / dd >
< / dl > <!-- net/netip -->
< dl id = "os" > < dt > < a href = "/pkg/os/" > os< / a > < / dt >
< dd >
< p > <!-- CL 516555 -->
TODO: < a href = "https://go.dev/cl/516555" > https://go.dev/cl/516555< / a > : os: follow all name surrogate reparse points in Stat on Windows
< / p >
< p > <!-- https://go.dev/issue/58808 -->
TODO: < a href = "https://go.dev/issue/58808" > https://go.dev/issue/58808< / a > : arrange zero-copy of os.File and TCPConn to UnixConn
< / p >
< / dd >
< / dl > <!-- os -->
< dl id = "os/exec" > < dt > < a href = "/pkg/os/exec/" > os/exec< / a > < / dt >
< dd >
< p > <!-- CL 528037 -->
TODO: < a href = "https://go.dev/cl/528037" > https://go.dev/cl/528037< / a > : os/exec: fix edge cases in Windows PATH resolution
< / p >
< p > <!-- CL 528038 -->
TODO: < a href = "https://go.dev/cl/528038" > https://go.dev/cl/528038< / a > : os/exec: avoid calling LookPath in cmd.Start for resolved paths
< / p >
< / dd >
< / dl > <!-- os/exec -->
2023-08-14 22:33:37 -06:00
go/types: set correct Var.scopePos for parameters/results
Previously, its value was unset (NoPos), but the correct
value is a point after the signature (FuncType.End) and
before the body.
Also, fix a bug in Scope.Innermost whereby it would return
the wrong (outer) scope when the query position was in
the FuncType portion of a Func{Decl,Lit}.
The fix is to set the scope's pos/end to those of the
complete Func{Decl,Lit}. This is now documented at
Info.Scopes, along with other missing information.
Also, fix a bug in the go/types (but not types2) scope
test, in which comments were discarded by the parser,
causing the entire test to be a no-op (!).
Also, make failures of TestScopeLookupParent more
informative.
Also, add a release note about the change in behavior.
Fixes #64292
Fixes #64295
Change-Id: Ib681f59d1b0b43de977666db08302d7524d3305f
Reviewed-on: https://go-review.googlesource.com/c/go/+/544035
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Run-TryBot: Robert Griesemer <gri@google.com>
2023-11-20 15:22:37 -07:00
< dl id = "go/types" > < dt > < a href = "/pkg/go/types/" > go/types< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/64295, CL 544035 -->
The start position (< a href = "/pkg/go/types#Scope.Pos" > Pos< / a > )
of the lexical environment block (< a href = "/pkg/go/types#Scope" > Scope< / a > )
that represents a function body has changed:
it used to start at the opening curly brace of the function body,
but now starts at the function's < code > func< / code > token.
< / p >
< / dd >
< / dl >
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< dl id = "reflect" > < dt > < a href = "/pkg/reflect/" > reflect< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61827, CL 517777 -->
The < a href = "/pkg/reflect/#Value.IsZero" > < code > Value.IsZero< / code > < / a >
method will now return true for a floating-point or complex
negative zero, and will return true for a struct value if a
blank field (a field named < code > _< / code > ) somehow has a
non-zero value.
These changes make < code > IsZero< / code > consistent with comparing
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a value to zero using the language < code > ==< / code > operator.
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< / p >
< / dd >
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< / dl > <!-- reflect -->
< dl id = "runtime" > < dt > < a href = "/pkg/runtime/" > runtime< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61015 -->
TODO: < a href = "https://go.dev/issue/61015" > https://go.dev/issue/61015< / a > : change mutex profile to scale contention by number of blocked goroutines
< / p >
< p > <!-- CL 543255 -->
TODO: < a href = "https://go.dev/cl/543255" > https://go.dev/cl/543255< / a > : runtime: put allocation headers back at the start the object
< / p >
< / dd >
< / dl > <!-- runtime -->
< dl id = "runtime/metrics" > < dt > < a href = "/pkg/runtime/metrics/" > runtime/metrics< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/63340 -->
TODO: < a href = "https://go.dev/issue/63340" > https://go.dev/issue/63340< / a > : provide histogram of all STW events
< / p >
< / dd >
< / dl > <!-- runtime/metrics -->
< dl id = "slices" > < dt > < a href = "/pkg/slices/" > slices< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/56353 -->
TODO: < a href = "https://go.dev/issue/56353" > https://go.dev/issue/56353< / a > : add Concat
< / p >
< p > <!-- https://go.dev/issue/63393 -->
TODO: < a href = "https://go.dev/issue/63393" > https://go.dev/issue/63393< / a > : have Delete and others clear the tail
< / p >
< p > <!-- CL 504882 -->
TODO: < a href = "https://go.dev/cl/504882" > https://go.dev/cl/504882< / a > : slices: add Concat
< / p >
< p > <!-- CL 540155 -->
TODO: < a href = "https://go.dev/cl/540155" > https://go.dev/cl/540155< / a > : slices: make Insert panic if index is out of range and there are no values
< / p >
< / dd >
< / dl > <!-- slices -->
< dl id = "syscall" > < dt > < a href = "/pkg/syscall/" > syscall< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/60797 -->
TODO: < a href = "https://go.dev/issue/60797" > https://go.dev/issue/60797< / a > : undeprecate
< / p >
< p > <!-- CL 520266 -->
TODO: < a href = "https://go.dev/cl/520266" > https://go.dev/cl/520266< / a > : syscall: add support to get pidfd from ForkExec on Linux
< / p >
< p > <!-- CL 541015 -->
TODO: < a href = "https://go.dev/cl/541015" > https://go.dev/cl/541015< / a > : syscall: support O_SYNC flag for os.OpenFile on windows
< / p >
< / dd >
< / dl > <!-- syscall -->
< dl id = "testing/slogtest" > < dt > < a href = "/pkg/testing/slogtest/" > testing/slogtest< / a > < / dt >
< dd >
< p > <!-- https://go.dev/issue/61758 -->
TODO: < a href = "https://go.dev/issue/61758" > https://go.dev/issue/61758< / a > : support sub-tests
< / p >
< p > <!-- CL 516076 -->
TODO: < a href = "https://go.dev/cl/516076" > https://go.dev/cl/516076< / a > : testing/slogtest: add Run to run cases as subtests; modified api/next/61758.txt
< / p >
< / dd >
< / dl > <!-- testing/slogtest -->
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< h2 id = "ports" > Ports< / h2 >
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< h3 id = "arm" > Arm< / h3 >
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< p > <!-- CL 514907 -->
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The < code > GOARM< / code > environment variable now allows you to select whether to use software or hardware floating point.
Previously, valid < code > GOARM< / code > values were < code > 5< / code > , < code > 6< / code > , or < code > 7< / code > . Now those same values can
be optionally followed by < code > ,softfloat< / code > or < code > ,hardfloat< / code > to select the floating-point implementation.
< / p >
< p >
This new option defaults to < code > softfloat< / code > for version < code > 5< / code > and < code > hardfloat< / code > for versions
< code > 6< / code > and < code > 7< / code > .
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< / p >
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< p > <!-- CL 481315 -->
TODO: < a href = "https://go.dev/cl/481315" > https://go.dev/cl/481315< / a > : runtime, cmd/go: enable memory sanitizer on linux/loong64
< / p >
< p > <!-- CL 517935 -->
TODO: < a href = "https://go.dev/cl/517935" > https://go.dev/cl/517935< / a > : cmd/dist,internal/platform: enable openbsd/ppc64 port
< / p >
< p > <!-- CL 537615 -->
TODO: < a href = "https://go.dev/cl/537615" > https://go.dev/cl/537615< / a > : debug/elf,cmd/link: add additional relocations for loong64; modified api/next/63725.txt
< / p >
< p > <!-- CL 469395 -->
TODO: < a href = "https://go.dev/cl/469395" > https://go.dev/cl/469395< / a > : debug/elf,cmd/link: add additional MIPS64 relocation type; modified api/next/61974.txt
< / p >
