Go 1.17 is not yet released. These are work-in-progress release notes. Go 1.17 is expected to be released in August 2021.
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go
get
The go
get
-insecure
flag is
deprecated and has been removed. To permit the use of insecure schemes
when fetching dependencies, please use the GOINSECURE
environment variable. The -insecure
flag also bypassed module
sum validation, use GOPRIVATE
or GONOSUMDB
if
you need that functionality. See go
help
environment
for details.
go.mod
files missing go
directives
If the main module's go.mod
file does not contain
a go
directive and
the go
command cannot update the go.mod
file, the
go
command now assumes go 1.11
instead of the
current release. (go
mod
init
has added
go
directives automatically since
Go 1.12.)
If a module dependency lacks an explicit go.mod
file, or
its go.mod
file does not contain
a go
directive,
the go
command now assumes go 1.16
for that
dependency instead of the current release. (Dependencies developed in GOPATH
mode may lack a go.mod
file, and
the vendor/modules.txt
has to date never recorded
the go
versions indicated by dependencies' go.mod
files.)
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(*Conn).HandshakeContext was added to allow the user to control cancellation of an in-progress TLS Handshake. The context provided is propagated into the ClientHelloInfo and CertificateRequestInfo structs and accessible through the new (*ClientHelloInfo).Context and (*CertificateRequestInfo).Context methods respectively. Canceling the context after the handshake has finished has no effect.
The runtime/cgo package now provides a new facility that allows to turn any Go values to a safe representation that can be used to pass values between C and Go safely. See runtime/cgo.Handle for more information.
As always, there are various minor changes and updates to the library, made with the Go 1 promise of compatibility in mind.
The net/http
package now uses the new
(*tls.Conn).HandshakeContext
with the Request
context
when performing TLS handshakes in the client or server.
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