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Go go1.20rc1

Go: go1.20rc1 Release

Release date:
August 16, 2023
Previous version:
go1.19.13 (released September 6, 2023)
Magnitude:
9,259 Diff Delta
Contributors:
31 total committers
Data confidence:
Commits:
119 impacting commits

110 Features Released with go1.20rc1

net/http, net/textproto: denial of service from excessive memory allocation ​(CVE-2023-24534)
#58975
archive/tar: unbounded memory consumption when reading headers
#54853
crypto/tls: verifying certificate chains containing large RSA keys is slow [CVE-2023-29409]
#61460
cmd/compile: ICE at composite literal assignment with alignment > PtrSize
#54638
cmd/pprof: graphviz node names are funny with generics
#54105
cmd/compile: panic: offset too large
#55357
crypto/x509: Verify on macOS does not return typed errors
#56891
security: fix CVE-2022-41723 [1.19 backport]
#58355
runtime, cgo: programs using Cocoa/OpenGL/Metal APIs on macOS exhibit problems at tip not seen in 1.19.4
#57263
cmd/go/internal/modfetch/codehost: racing writes to Origin fields
#54631
reflect: sort.SliceStable sorts incorrectly on arm64 with `less` function created with `reflect.MakeFunc` and slice of sufficient length [1.18 backport]
#57211
net/http: limit canonical header cache by bytes, not entries (CVE-2022-41717)
#56350
cmd/compile: libFuzzer instrumentation fakePC overflow on 386 arch [1.19 backport]
#56168
cmd/compile: internal compiler error: method Len on *uint8 not found
#54225
fatal error: bulkBarrierPreWrite: unaligned arguments (go 1.19.1, looks like regression)
#55122
cmd/link: .go.buildinfo is gc'ed by --gc-sections
#58222
crypto/tls: support ECDHE key exchanges when ec_point_formats is missing in ClientHello extension
#49126
spec: less error-prone loop variable scoping
#60078
cmd/go: document GOROOT/bin/go PATH entry for `go test` and `go generate`
#57050
cmd/go: improper sanitization of LDFLAGS [CVE-2023-29405]
#60306
cmd/compile: typebits.Set: invalid initial alignment: type Peer has alignment 8, but offset is 4
#54991
runtime: "runtime·lock: lock count" fatal error when cgo is enabled
#56243
cmd/compile: incorrect inline function variable
#59572
cmd/compile: the loong64 intrinsic for CompareAndSwapUint32 function needs to sign extend its "old" argument. [1.19 backport]
#57345
path/filepath: path traversal in filepath.Clean on Windows (CVE-2022-41722)
#57274
crypto/x509: panics on invalid curve instead of returning error
#54288
syscall, os/exec: unsanitized NUL in environment variables
#56284
cmd/compile: non-retpoline-compatible errors [1.19 backport]
#57100
html/template: improper handling of JavaScript whitespace
#59721
runtime: goroutines that stop after calling runtime.RaceDisable break race detector
#60934

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Top Contributors in go1.20rc1

rolandshoemaker
neild
bcmills
randall77
pmur
ianlancetaylor
cuonglm
FiloSottile
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