2ade9856f1
For #65614 Change-Id: I6274bdaba970cfb085af500fdaf8ed078202bfdc Reviewed-on: https://go-review.googlesource.com/c/go/+/591380 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Russ Cox <rsc@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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Tools
Telemetry
Starting in Go 1.23, the Go toolchain can collect usage and breakage statistics that help the Go team understand how the Go toolchain is used and how well it is working. We refer to these statistics as Go telemetry.
Go telemetry is an opt-in system, controlled by the
go telemetry command.
By default, the toolchain programs
collect statistics in counter files that can be inspected locally
but are otherwise unused (go telemetry local).
To help us keep Go working well and understand Go usage,
please consider opting in to Go telemetry by running
go telemetry on.
In that mode,
anonymous counter reports are uploaded to
telemetry.go.dev weekly,
where they are aggregated into graphs and also made
available for download by any Go contributors or users
wanting to analyze the data.
See “Go Telemetry” for more details
about the Go Telemetry system.
Go command
Setting the GOROOT_FINAL environment variable no longer has an effect
(#62047).
Distributions that install the go command to a location other than
$GOROOT/bin/go should install a symlink instead of relocating
or copying the go binary.
The new go env -changed flag causes the command to print only
those settings whose effective value differs from the default value
that would be obtained in an empty environment with no prior uses of the -w flag.
The new go mod tidy -diff flag causes the command not to modify
the files but instead print the necessary changes as a unified diff.
It exits with a non-zero code if updates are needed.
The go list -m -json command now includes new Sum and GoModSum fields.
This is similar to the existing behavior of the go mod download -json command.
The new godebug directive in go.mod and go.work declares a
GODEBUG setting to apply for the work module or workspace in use.
Vet
The go vet subcommand now includes the
stdversion
analyzer, which flags references to symbols that are too new for the version
of Go in effect in the referring file. (The effective version is determined
by the go directive in the file's enclosing go.mod file, and
by any //go:build constraints
in the file.)
For example, it will report a diagnostic for a reference to the
reflect.TypeFor function (introduced in go1.22) from a file in a
module whose go.mod file specifies go 1.21.
Cgo
[cmd/cgo] supports the new -ldflags flag for passing flags to the C linker.
The go command uses it automatically, avoiding "argument list too long"
errors with a very large CGO_LDFLAGS.
Trace
The trace tool now better tolerates partially broken traces by attempting to
recover what trace data it can. This functionality is particularly helpful when
viewing a trace that was collected during a program crash, since the trace data
leading up to the crash will now be recoverable under most
circumstances.