Update submodule to latest release-branch.go1.27 in microsoft/release-branch.go1.27

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Hi! I'm a bot, and this is an automatically generated upstream sync PR. 🔃

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For more information, visit sync documentation in microsoft/go-infra.

Upstream commits included in this update

• 8af21751f0 [release-branch.go1.27] go1.27.0
• 383391045c [release-branch.go1.27] net/http: clear ReadHeaderTimeout after accepting an unencrypted h2 conn
• 82a6130448 [release-branch.go1.27] internal/nettest: use TEST-NET-01 addresses by default
• 274019a1e7 [release-branch.go1.27] encoding/json/jsontext: modify documentation
• 89696307f2 [release-branch.go1.27] internal/cpu: disable AVX+ on netbsd/amd64
• 71cb77df0f [release-branch.go1.27] os: don't symlink on Root.Mkdir("symlink/") on openbsd
• db90bc9d93 [release-branch.go1.27] encoding/json: reference v2 tutorial and migration guide from package docs
• 2ac6c3da21 [release-branch.go1.27] encoding/json/v2: further clarify "string" wording
• f16db8dd34 [release-branch.go1.27] cmd/compile: do not home mul/div results in HI/LO
• a353362c36 [release-branch.go1.27] cmd/go/internal/doc: fix pkgsite psuedo-version
• 628651f6eb [release-branch.go1.27] encoding/json/v2: clarify "string" invalid types
• ed821a32ee [release-branch.go1.27] encoding/json/v2: document custom marshal option adherence
• 996e69fee6 [release-branch.go1.27] encoding/json/jsontext: clarify safety of AvailableBuffer
• 5a68c4c0b8 [release-branch.go1.27] encoding/json/v2: add MarshalerTo and UnmarshalerFrom examples
• 2a9f09447d [release-branch.go1.27] encoding/json/v2: make Deterministic doc more approachable
• faa73d2c12 [release-branch.go1.27] encoding/json/v2: modify documentation
• 6a4f173120 [release-branch.go1.27] encoding/json/v2: remove cycle detection guarantee
• 2b10e5ab6c [release-branch.go1.27] internal/stringslite: fix performance regression in index
• 0fca453eee [release-branch.go1.27] cmd/internal/moddeps: restore tests
• 90cf2c3860 [release-branch.go1.27] go1.27rc3
• b0365c1777 [release-branch.go1.27] cmd/vendor: fix CVE-2026-56865 in x/mod
• a387670379 [release-branch.go1.27] cmd/vendor: fix CVE-2026-56864 in x/mod
• 41cb2f352e [release-branch.go1.27] encoding/asn1: enforce maximum recursion depth
• bcdba48a6a [release-branch.go1.27] html/template: fix JavaScript regexp tracking
• bd62f0c264 [release-branch.go1.27] net/url: avoid quadratic complexity in resolvePath
• e781256af3 [release-branch.go1.27] cmd/compile: fix time traveling proofs in prove
• 14e2c88dd5 [release-branch.go1.27] cmd/compile: fix prove to generate Const64 for 64bits slicemasks
• 434ebde9e6 [release-branch.go1.27] cmd/compile: do not elide riscv64 sign extension of unsigned values
• 83223a99ff [release-branch.go1.27] cmd/compile: fix mips64le bigger than 32bits pointer offsets
• 0d586ce4c2 [release-branch.go1.27] runtime: fix frame pointer adjustment around injected calls
• ea9653fb9c [release-branch.go1.27] net/http: enable HTTP/2 on http2.ConfigureServer
• 2cd21e94dc [release-branch.go1.27] runtime/cgo: add back indirections to C functions
• 95d89e6588 [release-branch.go1.27] cmd/compile: use pointer-size alignment for stack object records
• c498b9fa22 [release-branch.go1.27] all: update x/net
• 23c2a1f26d [release-branch.go1.27] cmd/fix: improve strings{cut,seq} and slicesbackward modernizers
• f48a1f836d [release-branch.go1.27] encoding/json/v2: add Multiline example
• 741acb3b23 [release-branch.go1.27] encoding/json/v2: clean up indentation examples
• 95ae6418f3 [release-branch.go1.27] crypto/tls: do not count handshake messages as state-advancing post-handshake
• dadc7af554 [release-branch.go1.27] crypto/ecdsa: avoid panic when Sign is called with crypto.Hash(0)
• cfd51c6dd5 [release-branch.go1.27] crypto/tls: add fips140ems GODEBUG setting to disable EMS enforcement
• d5eeaa7de3 [release-branch.go1.27] encoding/xml: fix depth processing in (*Decoder).unmarshal
• 51daf67bd7 [release-branch.go1.27] cmd/go/internal/doc: update pkgsite version
• 127707e4ce [release-branch.go1.27] runtime: don't emit write barrier for code pointers in itabInit
• 9b7512cf3f [release-branch.go1.27] runtime: fix uninitialized 7th argument in mach_vm_region_trampoline
• c9ff5c940d [release-branch.go1.27] crypto/mldsa: handle some uninitialized and nil values more gracefully
• 65c01f93e0 [release-branch.go1.27] crypto/internal/fips140/aes/gcm: fix ctxt load/store for short tags
• 184ce1510b [release-branch.go1.27] internal/fuzz: fix race between context deadline and error suppression
• b7cc93a369 [release-branch.go1.27] cmd/compile: truncate uint64 indices for imm8 jump tables
• b323620c2f [release-branch.go1.27] cmd/compile: fix mergelocals on mips/mips64
• 1dde0eb1c8 [release-branch.go1.27] cmd/compile: tighten mergelocals address use analysis

View full diff on GitHub

[review-bot-for-go]

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[Copilot]

Pull request overview

Syncs this repository’s upstream Go submodule state to the latest release-branch.go1.27, updating the recorded version/revision markers accordingly.

Changes:

• Set VERSION to go1.27.0.
• Set MICROSOFT_REVISION to 1.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
VERSION	Updates the recorded Go toolchain version to go1.27.0.
MICROSOFT_REVISION	Updates the Microsoft revision marker for this upstream sync.

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