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Go go1.21rc1

Go: go1.21rc1 Release

Release date:
February 1, 2024
Previous version:
go1.20.14 (released February 6, 2024)
Magnitude:
7,139 Diff Delta
Contributors:
34 total committers
Data confidence:
Commits:
125 impacting commits

109 Features Released with go1.21rc1

internal/coverage/decodemeta: mishandled function literal flag in covdata read
#57942
runtime: checkdead fires due to suspected race in the Go runtime when GOMAXPROCS=1 on AWS
#59600
cmd/link: issues with Apple's new linker in Xcode 15
#61229
cmd/link: .go.buildinfo is gc'ed by --gc-sections
#58222
all: test failures with `ETXTBSY` [1.20 backport]
#58431
crypto/x509: TestIssue51759 consistently failing on `gotip-darwin-amd64_10.15` LUCI builder
#64677
cmd/compile: ICE on method value involving imported anonymous interface [1.20 backport]
#58776
cmd/link: Incorrect symbol linked in darwin/arm64
#58935
spec: less error-prone loop variable scoping
#60078
cmd/compile: Unified IR exports table is binary unstable in presence of generics [1.20 backport]
#59585
cmd/go: document GOROOT/bin/go PATH entry for `go test` and `go generate`
#57050
cmd/compile: internal compiler error: Type.Elem UNION [1.20 backport]
#58413
cmd/go: improper sanitization of LDFLAGS [CVE-2023-29405]
#60306
runtime: execution halts with goroutines stuck in `runtime.gopark` (`protocol error E08 during memory read for packet`)
#61768
cmd/compile: compilation of a package >100x slower with 1.20rc3
#57959
crypto/ecdh: ECDH method doesn't check curve
#58131
cmd/compile: internal compiler error: '(*Tree[go.shape.int]).RemoveParent.func1': value .dict (nil) incorrectly live at entry [1.20 backport]
#58467
crypto/internal/bigmod: flag amd64 assembly as noescape
#58501
crypto/x509: TestSystemVerify/EKULeafValid fails on LUCI
#60925
cmd/compile: incorrect inline function variable
#59572
x/tools/go/analysis/unitchecker: TestVetStdlib failures
#60058
path/filepath: path traversal in filepath.Clean on Windows (CVE-2022-41722)
#57274
runtime: ReadMemStats fatal error: mappedReady and other memstats are not equal
#64401
syscall.Faccessat and os.LookPath regression in Go 1.20
#58552
html/template: improper handling of JavaScript whitespace
#59721
runtime: goroutines that stop after calling runtime.RaceDisable break race detector
#60934
runtime: crash on linux-ppc64le [1.20 backport]
#59220
crypto/subtle: xor fails when run with race+purego
#59334
cmd/compile: internal compiler error: cannot call SetType(go.shape.int) on v (type int) [1.20 backport]
#59450
x/tools/go/analysis/passes/testinggoroutine: ignore subtests in goroutines (false positive)
#63799

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Top Contributors in go1.21rc1

bcmills
mdempsky
rolandshoemaker
neild
cuonglm
dr2chase
thanm
ianlancetaylor
findleyr
randall77

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