The release note fragments have been merged and added
as _content/doc/go1.25.md in x/website in CL 677175.
For #71661.
Change-Id: Ie1a895de03c20941a38b0a6a45f4cf6bc21278e1
Reviewed-on: https://go-review.googlesource.com/c/go/+/677335
Auto-Submit: Gopher Robot <gobot@golang.org>
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Reviewed-by: David Chase <drchase@google.com>
- Add section headings to make the section easier to read.
- Reorder features to better reflect their impact and importance.
- Tweak some awkward wording here and there.
Change-Id: If72c526f4b3a26a7a4584d6c59857db02c0c1338
Reviewed-on: https://go-review.googlesource.com/c/go/+/676818
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Change-Id: I91c03f455fff8e4078f3297ea357cd1e1dd09f66
Reviewed-on: https://go-review.googlesource.com/c/go/+/676536
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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(More symbols that belong to the ast.Object deprecation.)
Fixes#73088Fixes#7124
Updates #52463
Updates #71122
Change-Id: I10e3ef35b587da2f3f0a65e9154e33bd53e7a093
Reviewed-on: https://go-review.googlesource.com/c/go/+/674176
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This is the output of relnote -goroot=... todo,
with each todo in a comment, followed by summary
text from the issue and perhaps the CL, lightly
processed into markdown.
For #71661.
Change-Id: I855c4c4ee02491b5b6113822baf69dbafb4e54ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/675877
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Change-Id: I2133e3c62b4de0cec08eeb120d593c644643a62c
Reviewed-on: https://go-review.googlesource.com/c/go/+/675755
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
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Also mention the bisect tool and flag used to track down
incorrect uses.
Change-Id: Id36a236e1bb2733b8611b22a5b16916e7d9f5522
Reviewed-on: https://go-review.googlesource.com/c/go/+/666075
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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This change adds the flight recorder to the trace package.
Flight recording is a technique in which trace data is kept
in a circular buffer and can be flushed upon request. The
implementation will be added in follow-up CLs.
The flight recorder has already been implemented inside of the
golang.org/x/exp/trace package. This copies the current implementation
and modifies it to work within the runtime/trace package.
The changes include:
This adds the ability for multiple consumers (both the execution
tracer and the flight recorder) to subscribe to tracing events. This
change allows us to add multiple consumers without making major
modifications to the runtime. Future optimizations are planned
for this functionality.
This removes the use of byte readers from the process that
parses and processes the trace batches.
This modifies the flight recorder to not parse out the trace
clock frequency, since that requires knowledge of the format that's
unfortunate to encode in yet another place. Right now, the trace clock
frequency is considered stable for the lifetime of the program, so just
grab it directly from the runtime.
This change adds an in-band end-of-generation signal to the internal
implementation of runtime.ReadTrace. The internal implementation is
exported via linkname to runtime/trace, so the flight recorder can
identify exactly when a generation has ended. This signal is also useful
for ensuring that subscribers to runtime trace data always see complete
generations, by starting or stopping data streaming only at generation
boundaries.
For #63185
Change-Id: I5c15345981a6bbe9764a3d623448237e983c64ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/673116
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Add a new Attr method to testing.TB that emits a test attribute.
An attribute is an arbitrary key/value pair.
Fixes#43936
Change-Id: I7ef299efae41f2cf39f2dc61ad4cdd4c3975cdb6
Reviewed-on: https://go-review.googlesource.com/c/go/+/662437
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Auto-Submit: Damien Neil <dneil@google.com>
This implements RFC 9155 by removing support for SHA-1 algorithms:
- we don't advertise them in ClientHello and CertificateRequest
(where supportedSignatureAlgorithms is used directly)
- we don't select them in our ServerKeyExchange and CertificateVerify
(where supportedSignatureAlgorithms filters signatureSchemesForCertificate)
- we reject them in the peer's ServerKeyExchange and CertificateVerify
(where we check against the algorithms we advertised in ClientHello
and CertificateRequest)
Fixes#72883
Change-Id: I6a6a4656e2aafd2c38cdd32090d3d8a9a8047818
Reviewed-on: https://go-review.googlesource.com/c/go/+/658216
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Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
Previously the common Config.mutualVersion() code prioritized the
selected version based on the provided peerVersions being sent in peer
preference order.
Instead we would prefer to see TLS 1.3 used whenever it is
supported, even if the peer would prefer an older protocol version.
This commit updates mutualVersions() to implement this policy change.
Our new behaviour matches the behaviour of other TLS stacks, notably
BoringSSL, and so also allows enabling the IgnoreClientVersionOrder BoGo
test that we otherwise must skip.
Updates #72006
Change-Id: I27a2cd231e4b8762b0d9e2dbd3d8ddd5b87fd5cb
Reviewed-on: https://go-review.googlesource.com/c/go/+/673236
Auto-Submit: Daniel McCarney <daniel@binaryparadox.net>
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Reviewed-by: Roland Shoemaker <roland@golang.org>
This allows servers to rotate their ECH keys without needing to restart
the server.
Fixes#71920
Change-Id: I55591ab3303d5fde639038541c50edcf1fafc9aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/670655
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Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
For #73126
Change-Id: Ie69cc274e7b59f958c239520318b89ff0141e26b
Reviewed-on: https://go-review.googlesource.com/c/go/+/674315
Reviewed-by: Alan Donovan <adonovan@google.com>
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GroupAttrs is a more efficient version of Group
that takes a slice of Attr values.
Fixes#66365
Change-Id: Ic3046704825e17098f2fea5751f2959dce1073e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/672915
Reviewed-by: Jonathan Amsterdam <jba@google.com>
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This CL adds two related features enabled by default via compatibility
GODEBUGs containermaxprocs and updatemaxprocs.
On Linux, containermaxprocs makes the Go runtime consider cgroup CPU
bandwidth limits (quota/period) when setting GOMAXPROCS. If the cgroup
limit is lower than the number of logical CPUs available, then the
cgroup limit takes precedence.
On all OSes, updatemaxprocs makes the Go runtime periodically
recalculate the default GOMAXPROCS value and update GOMAXPROCS if it has
changed. If GOMAXPROCS is set manually, this update does not occur. This
is intended primarily to detect changes to cgroup limits, but it applies
on all OSes because the CPU affinity mask can change as well.
The runtime only considers the limit in the leaf cgroup (the one that
actually contains the process), caching the CPU limit file
descriptor(s), which are periodically reread for updates. This is a
small departure from the original proposed design. It will not consider
limits of parent cgroups (which may be lower than the leaf), and it will
not detection cgroup migration after process start.
We can consider changing this in the future, but the simpler approach is
less invasive; less risk to packages that have some awareness of runtime
internals. e.g., if the runtime periodically opens new files during
execution, file descriptor leak detection is difficult to implement in a
stable way.
For #73193.
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest
Change-Id: I6a6a636c631c1ae577fb8254960377ba91c5dc98
Reviewed-on: https://go-review.googlesource.com/c/go/+/670497
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For #67002
Change-Id: Idd74b5b59e787e89bdfad82171b6a7719465f501
Reviewed-on: https://go-review.googlesource.com/c/go/+/674116
Reviewed-by: Alan Donovan <adonovan@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
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For #67002
Change-Id: If59dab4fd934a115d8ff383826525330de750b54
Reviewed-on: https://go-review.googlesource.com/c/go/+/661595
Reviewed-by: Alan Donovan <adonovan@google.com>
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Add a synctest.Test function, superseding the experimental
synctest.Run function. Promote the testing/synctest package
out of experimental status.
For #67434
For #73567
Change-Id: I3c5ba030860d90fe2ddb517a2f3536efd60181a9
Reviewed-on: https://go-review.googlesource.com/c/go/+/671961
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This implementation is zero-alloc when T is a concrete type,
allocates when val contains a method or when T is a interface
and Value was obtained for example through Elem(), in which case
it has to be allocated to avoid sharing the same memory.
goos: linux
goarch: amd64
pkg: reflect
cpu: AMD Ryzen 5 4600G with Radeon Graphics
│ /tmp/bench2 │
│ sec/op │
TypeAssert/TypeAssert[int](int)-12 2.725n ± 1%
TypeAssert/TypeAssert[uint8](int)-12 2.599n ± 1%
TypeAssert/TypeAssert[fmt.Stringer](reflect_test.testTypeWithMethod)-12 8.470n ± 0%
TypeAssert/TypeAssert[fmt.Stringer](*reflect_test.testTypeWithMethod)-12 8.460n ± 1%
TypeAssert/TypeAssert[interface_{}](int)-12 4.181n ± 1%
TypeAssert/TypeAssert[interface_{}](reflect_test.testTypeWithMethod)-12 4.178n ± 1%
TypeAssert/TypeAssert[time.Time](time.Time)-12 2.839n ± 0%
TypeAssert/TypeAssert[func()_string](func()_string)-12 151.1n ± 1%
geomean 6.645n
│ /tmp/bench2 │
│ B/op │
TypeAssert/TypeAssert[int](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[uint8](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[fmt.Stringer](reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[fmt.Stringer](*reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[interface_{}](int)-12 0.000 ± 0%
TypeAssert/TypeAssert[interface_{}](reflect_test.testTypeWithMethod)-12 0.000 ± 0%
TypeAssert/TypeAssert[time.Time](time.Time)-12 0.000 ± 0%
TypeAssert/TypeAssert[func()_string](func()_string)-12 72.00 ± 0%
geomean ¹
Fixes#62121
Change-Id: I0911c70c5966672c930d387438643f94a40441c4
GitHub-Last-Rev: ce89a53097
GitHub-Pull-Request: golang/go#71639
Reviewed-on: https://go-review.googlesource.com/c/go/+/648056
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For #71661.
Change-Id: I74870de3f17a938bc9fd83ccc41e13e64b55b5e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/671438
Reviewed-by: Cherry Mui <cherryyz@google.com>
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For #71661.
Change-Id: I802b0c36cac3bbd87b35ff216f06822e87fb7b5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/671439
Reviewed-by: Michael Pratt <mpratt@google.com>
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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages. This fixes and
expands on
https://go-review.googlesource.com/c/go/+/646956.
For #59928.
Change-Id: I08179c35a681f601cf125c0f4aeb648bc10c7a9f
GitHub-Last-Rev: e6e202793c
GitHub-Pull-Request: golang/go#73703
Reviewed-on: https://go-review.googlesource.com/c/go/+/672395
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This reverts commit 8d189f188e.
Reason for revert: failing test
Change-Id: I951087eaef7818697acf87e3206003bcc8a81ee2
Reviewed-on: https://go-review.googlesource.com/c/go/+/672335
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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages.
Co-authored-by: Aleks Fazlieva <britishrum@users.noreply.github.com>
Fixes#59928.
Change-Id: I29090b3d4f61f7334388b373ec18750d5637aafa
GitHub-Last-Rev: 18af0e1526
GitHub-Pull-Request: golang/go#71575
Reviewed-on: https://go-review.googlesource.com/c/go/+/646956
Reviewed-by: Arati <artichaut2023@gmail.com>
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And use it in crypto/x509. This allows people to implement single-shot
signers which do the hashing themselves.
Fixes#63405
Change-Id: I038c2e10f77b050b6136c4c0a5b031cb416f59aa
Reviewed-on: https://go-review.googlesource.com/c/go/+/654375
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Go 1.22 promised to remove the setting in a future release once the
semantics of runtime-internal lock contention matched that of
sync.Mutex. That work is done, remove the setting.
Previously reviewed as https://go.dev/cl/585639.
For #66999
Change-Id: I9fe62558ba0ac12824874a0bb1b41efeb7c0853f
Reviewed-on: https://go-review.googlesource.com/c/go/+/668995
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Reviewed-by: Carlos Amedee <carlos@golang.org>
For #73526
Change-Id: I06d8ae9080695745db68a51635faa0b244c1760e
Reviewed-on: https://go-review.googlesource.com/c/go/+/670155
Reviewed-by: Robert Griesemer <gri@google.com>
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Currently, the `source` method in `slog.Record` is not accessible to
custom handlers, requiring developers to re-implement logic for
retrieving source location information. This commit exports the `source`
method as `Source`, enabling consistent access for custom logging
handlers and reducing code redundancy.
Fixes#70280
Change-Id: I3eb3bc60658abc5de95697a10bddd11ab54c6e13
GitHub-Last-Rev: bd81afe5a5
GitHub-Pull-Request: golang/go#70281
Reviewed-on: https://go-review.googlesource.com/c/go/+/626976
Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
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The runtime poller and os.NewFile recently gained support for
disassociating the handle from the runtime poller IOCP (see CL 664455).
This was the main blocker for allowing the conversion between *os.File
and net.Conn.
Implementing the conversion is now trivial. The only remaining work,
implemented in this CL, is improving os.NewFile to also support
socket handles and updating some build tags so that Windows can share
almost the same net's File implementation as Unix.
There is one important limitation, though: the duplicated socket handle
returned by the various File methods in the net package is not
usable on other process. If someone needs to pass a socket handle to
another process, they should manually call the WSADuplicateSocket
Windows API passing the process ID of the target process.
Fixes#9503.
Fixes#10350.
Updates #19098.
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Change-Id: Ic43cadaac2662b925d57a9d362ddc7ae21d1b56e
Reviewed-on: https://go-review.googlesource.com/c/go/+/668195
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Minor typo fixes in the docs
Change-Id: I56b5d0318936aecc7775fb5bc70534456707da49
GitHub-Last-Rev: b4d042f8a9
GitHub-Pull-Request: golang/go#73531
Reviewed-on: https://go-review.googlesource.com/c/go/+/668815
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The Unicode specification defines aliases for some of the general
category names. For example the category "L" has alias "Letter".
The regexp package supports \p{L} but not \p{Letter}, because there
was nothing in the Unicode tables that lets regexp know about Letter.
Now that package unicode provides CategoryAliases (see #70780),
we can use it to provide \p{Letter} as well.
This is the only feature missing from making package regexp suitable
for use in a JSON-API Schema implementation. (The official test suite
includes usage of aliases like \p{Letter} instead of \p{L}.)
For better conformity with Unicode TR18, also accept case-insensitive
matches for names and ignore underscores, hyphens, and spaces;
and add Any, ASCII, and Assigned.
Fixes#70781.
Change-Id: I50ff024d99255338fa8d92663881acb47f1e92a5
Reviewed-on: https://go-review.googlesource.com/c/go/+/641377
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CategoryAliases is for regexp to use, for things like \p{Letter} as an alias for \p{L}.
Cn and LC are special-case categories that were never implemented
but should have been.
These changes were generated by the updated generator in CL 641395.
Fixes#70780.
Change-Id: Ibba20ff76191c8ae9631ac5ba19965790fe0cc81
Reviewed-on: https://go-review.googlesource.com/c/go/+/641376
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It was rendering incorrectly at https://tip.golang.org/doc/go1.25
Change-Id: I2f66c95414ac5d71b9b02b91bcdc0d0a87b3f605
Reviewed-on: https://go-review.googlesource.com/c/go/+/662436
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Reviewed-by: Carlos Amedee <carlos@golang.org>
For #69839.
For #71661.
Change-Id: Ic13f4b7fb81461d55216b260384ee10037b86054
Reviewed-on: https://go-review.googlesource.com/c/go/+/663515
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The runtime/poll package has just gained support for overlapped IO,
see CL 660595 and CL 661955. The only remaining piece was making it
visible to user code via os.NewFile.
Some of the poll.FD.Init responsibility has been moved to os.NewFile
to avoid unnecessary syscalls for the common case of using os.Open,
os.Create, os.OpenFile, and os.Pipe, where we know that the file
is not opened for overlapped IO.
Some internal/poll tests have been moved to the os package to exercise
public APIs rather than internal ones.
The os.NewFile function definition has been moved into an OS-agnostic
file to avoid having duplicated documentation and ensure that the
caller is aware of its behavior across all platforms.
Closes#19098.
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Change-Id: If043f8b34d588cd4b481777203107ed92d660fd9
Reviewed-on: https://go-review.googlesource.com/c/go/+/662236
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Damien Neil <dneil@google.com>
My CL 645115 added the new entries in the wrong place,
prematurely creating the go1.25 file.
Also, add the missing release note.
Change-Id: Ib5b5ccfb42757a9ea9dc93e33b3e3ed8e8bd7d3f
Reviewed-on: https://go-review.googlesource.com/c/go/+/662615
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Gopher Robot
Michael Anthony Knyszek
David Chase
Alan Donovan
Keith Randall
Carlos Amedee
Filippo Valsorda
Damien Neil
qiulaidongfeng
Daniel McCarney
Roland Shoemaker
Sean Liao
Michael Pratt
Mateusz Poliwczak
suntala
Jonathan Amsterdam
Rhys Hiltner
Mark Freeman
Ernesto Alejandro Santana Hidalgo
qmuntal
John Bampton
Russ Cox
Brad Fitzpatrick