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 >
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<!-- 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 >
< 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 >
