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Go 1.27 change: * golang/go#60746 * golang/go#67810 $ go1.27rc1 build -v ./cmd/dolt google.golang.org/grpc/internal/transport # google.golang.org/grpc/internal/transport ../../../../go/pkg/mod/google.golang.org/grpc@v1.79.3/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefix $ go get golang.org/x/net@v0.55.0 && go mod tidy go: upgraded golang.org/x/net v0.54.0 => v0.55.0 $ go1.27rc1 build -v ./cmd/dolt Found in * Homebrew/homebrew-core#288803
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Announcements:
Release notes:
Go 1.27 milestone:
(release blockers, commits, PRs)
Go release dashboard: https://dev.golang.org/release
Downloads: https://go.dev/dl/
Related/similar previous major releases:
Builds:
rc1: https://github.com/Homebrew/homebrew-core/actions/runs/27823992819?pr=288803(failing due to premature staticcheck revision bump)Problematic formulae
Test failure - Needs revision bump
errcheckfails withpackage requires newer Go version go1.27 (application built with go1.26) -: This application uses version go1.26 of the source-processing packages but runs version go1.27 of 'go list'. It may fail to process source files that rely on newer language features. If so, rebuild the application using a newer version of Go.garble(once supported upstream https://github.com/burrowers/garble in main.go)Go version "go1.27rc1" is too new; Go linker patches aren't available for go1.27 or later yetsearch upstream for 1.27golangci-lintgoresym(3.3) test failure:Failed to parse file: no valid pclntab found(Go 1.27 pclntab format change) Add Go 1.27 support mandiant/GoReSym#90govulncheckstaticcheck2026.1_4 test failure:JSON::ParserError: unexpected token at end of stream '{"code":"compile","severity":"er' at line 1 column 1- Tracking issue for Go 1.27 / internal data version bump dominikh/go-tools#1711Build failure due to bug in Go 1.27
Build failure
internal compiler error: bad live variablegrpcui(1.5.2) build failure:grpcui.go:897:3: internal compiler error: bad live variable at entry of getMethods: cfg (type *svcConfig)— all macOS arm64 cmd/compile: internal compiler error "bad live variable at entry" with map range, map lookup pointer, and optimized struct method call golang/go#80102, now should be ok in 1.27 after golang/go@31525e9Build failure
undefined: http2.TrailerPrefixingoogle.golang.org/grpcmoduleUpstream:
Fixable by either
golang.org/x/netmodule tov0.55.0or later,-tags=http2legacy, orgoogle.golang.org/grpcrelease to >= 1.83.0 (or maybe even >=1.82.2) once availableFormulae issues:
astro(1.43.1) build failure:google.golang.org/grpc@v1.80.0 undefined: http2.TrailerPrefix— all macOS arm64azcopy(10.32.4) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.81.0/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixBump Go 1.25.11 and security-relevant dependencies Azure/azure-storage-azcopy#3486 azcopy 10.32.6 #292246bigquery-emulator(0.8.1) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.81.1/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixBump golang.org/x/net from 0.54.0 to 0.56.0 for Go 1.27 compatibility goccy/bigquery-emulator#497 Bump golang.org/x/net from 0.54.0 to 0.55.0 in the go_modules group across 1 directory goccy/bigquery-emulator#499cilium-cli(0.19.4) build failure:# google.golang.org/grpc/internal/transport vendor/google.golang.org/grpc/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixPrepare for v0.19.5 release cilium/cilium-cli#3260 cilium-cli 0.19.5 #289768dagger(0.21.7) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.80.0/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixdolt(2.1.8) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.79.3/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixBump golang.org/x/net v0.54.0 => v0.55.0 for Go 1.27 compatibility dolthub/dolt#11290 dolt 2.2.2 #294457flyctl(0.4.59) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.81.1/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixchore(deps): bump github.com/containerd/containerd/v2 from 2.2.4 to 2.2.5 superfly/flyctl#4939 flyctl 0.4.63 #290665gitsign(0.16.1) build failure:# google.golang.org/grpc/internal/transport /Users/brew/Library/Caches/Homebrew/go_mod_cache/pkg/mod/google.golang.org/grpc@v1.80.0/internal/transport/handler_server.go:271:18: undefined: http2.TrailerPrefixBump the gomod group across 1 directory with 7 updates sigstore/gitsign#839kafkactl(5.19.0) build failure:google.golang.org/grpc@v1.81.0 undefined: http2.TrailerPrefix— all macOS arm64 chore(deps): bump golang.org/x/net from 0.54.0 to 0.55.0 deviceinsight/kafkactl#330kapacitor(1.8.6) build failure:google.golang.org/grpc@v1.81.1 undefined: http2.TrailerPrefix— all macOS arm64 build(deps): bump golang.org/x/net from 0.54.0 to 0.55.0 influxdata/kapacitor#2902kubeone(1.13.5) build failure:google.golang.org/grpc@v1.79.3 undefined: http2.TrailerPrefix+linodego undefined: http2.GoAwayError— all macOS arm64 Support for Kubernetes v1.36 kubermatic/kubeone#4096 wait for 1.14.0 releaselocalai(4.7.1) build failure:google.golang.org/grpc@v1.80.0 undefined: http2.TrailerPrefix— all macOS arm64mmctl(11.8.3) build failure:google.golang.org/grpc@v1.81.0 undefined: http2.TrailerPrefix— all macOS arm64 Bump golang.org/x/net to v0.56.0 mattermost/mattermost#37293 wait for 11.10.0 releaseopentofu(1.12.3) build failure:google.golang.org/grpc@v1.79.3 undefined: http2.TrailerPrefix— all macOS arm64 go.mod: Upgrade golang.org/x/* dependencies for net v0.55.0 opentofu/opentofu#4127 go.mod: Upgrade golang.org/x/* dependencies for net v0.55.0 opentofu/opentofu#4127 wait for 1.13.0 release?pvetui(1.4.2) build failure:google.golang.org/grpc@v1.81.0 undefined: http2.TrailerPrefix— all macOS arm64 deps(deps): bump github.com/getsops/sops/v3 from 3.13.1 to 3.13.2 devnullvoid/pvetui#135 pvetui 1.4.3 #293545skopeo(1.23.0) build failure:vendor/google.golang.org/grpc undefined: http2.TrailerPrefix— all macOS arm64vulcain(1.4.1) build failure:google.golang.org/grpc@v1.81.1 undefined: http2.TrailerPrefix— all macOS arm64 chore: bump deps dunglas/vulcain#182Formula reports different checksum
Gitea unstable checksum:
gitea-mcp-server(1.3.0): gitea-mcp-server: update checksum for 1.3.0 release #288966 gitea-mcp-server: use git instead of archive #290371gitea-runner(1.0.8): gitea-runner: update checksum for 1.0.8 release #288967 gitea-runner: use git instead of archive #290372tea(0.14.1): tea 0.14.2 #290079Others
cozypkg(1.4.4): cozypkg: update checksum for 1.4.4 release #288964 cozypkg 1.5.0 #289264firefly(1.4.0): firefly: update homepage and checksum for 1.4.0 release #292774git-hooks-go(1.3.1): git-hooks-go: deprecate #288965git-pages(0.9.1): git-pages: update checksum for 0.9.1 release #292775git-pages-cli(1.10.0): git-pages-cli: update checksum for 1.10.0 release #292776ijq(1.3.0): ijq: update checksum for 1.3.0 release #292788kraftkit(0.12.14): kraftkit: update checksum for 0.12.14 release #292819noti(3.8.0): noti: update checksum for 3.8.0 release #292827nova-fairwinds(3.12.0): nova-fairwinds: update checksum for 3.12.0 release #289178ocm(1.0.15): ocm: update checksum for 1.0.15 release #289181percona-toolkit(3.7.1): percona-toolkit: update checksum for 3.7.1 release #289183 percona-toolkit 3.7.1-4, livecheck #291217picoclaw(0.3.1): picoclaw: update checksum for 0.3.1 release #292825pixlet(0.53.0): pixlet: update checksum for 0.53.0 release #289296pluto(5.24.0): pluto: update checksum for 5.24.0.release #289553ratify(1.4.1): ratify: add livecheck, update checksum for 1.4.1 release #289565 ratify 1.4.2 #289608 ratify: add livecheck #289638reposurgeon(5.9) reposurgeon: update checksum for 5.9 release #294229sing-box(1.13.13): sing-box: update checksum for 1.13.13 release #289765 sing-box 1.13.14 #289778terramaid(2.15.3): terramaid: update checksum for 2.15.3 release #290269 terramaid: disable autobump #290729 terramaid: deprecate #291278treefmt(2.5.0): treefmt: update checksum for 2.5.0 release #290119wireguard-go(0.0.20250522): wireguard-go: update checksum for 0.0.20250522 release #290649Build failure
undefined: json.SkipFunc/undefined: json.DiscardUnknownMembersCaused by
github.com/go-json-experiment/jsonmodule being incompatible with Go 1.27's new stdlibencoding/json/v2. All macOS arm64. Upstream:Formulae:
dagu(2.7.17) build failure:go-json-experiment/json alias.go:618:21: undefined: json.SkipFunc/alias.go:957:14: undefined: json.DiscardUnknownMemberssing-box(1.13.14) build failure:go-json-experiment/json alias.go:618:21: undefined: json.SkipFunc/alias.go:957:14: undefined: json.DiscardUnknownMembers— all macOS arm64trivy(0.71.2) build failure:github.com/aquasecurity/trivy pkg/x/json/json.go:109:16: undefined: json.SkipFuncCannot build with `go install` with 1.27rc2 aquasecurity/trivy#10897vuls(0.39.3) build failure:undefined: json.SkipFunc(transitive dep on trivy)Build failure
undefined: checkMapABIingithub.com/pingcap/tidbdumpling(26.3.4) build failure:pkg/util/hack/hack.go:41:2: undefined: checkMapABI— all macOS arm64 Build fails with Go 1.27 pingcap/tidb#70069Build failure
undefined: hashFn/getRuntimeHasher/fastrand64incockroachdb/swissUses Go build flags to not work in untested Go 1.27. Upstream: https://github.com/cockroachdb/swiss
Formulae:
ipget(0.13.1) build failure:cockroachdb/swiss map.go:286:7: undefined: hashFn/map.go:337:14: undefined: getRuntimeHasher/map.go:338:22: undefined: fastrand64kubo(0.42.0) build failure:cockroachdb/swiss map.go: undefined: hashFn, getRuntimeHasher, fastrand64plakar(1.1.4) build failure:cockroachdb/swiss map.go: undefined: hashFn, getRuntimeHasher, fastrand64pomerium(0.32.9) build failure:cockroachdb/swiss map.go: undefined: hashFn, getRuntimeHasher, fastrand64Build failure
link: invalid reference to runtime.nanotime1Go 1.27 removed/renamed
runtime.nanotime1. Needs upstreamtailscale.com/tstime/monoupdate. All macOS arm64.coder(2.34.5) build failure:link: tailscale.com/tstime/mono: invalid reference to runtime.nanotime1tailscale(1.98.8) build failure:./build_dist.sh shellvars exited with 1Runtime panic
panic: crypto: RegisterHash of unknown hash functionin https://go.dev/src/crypto/crypto.go#:~:text=crypto%3A%20RegisterHash%20of%20unknown%20hash%20function
cloudfoundry-cli(8.18.3) test failure:panic: crypto: RegisterHash of unknown hash function— all macOS arm64panic: strcase.UnicodeVersion "15.0.0" != unicode.Version "17.0.0"Needs rebuild with updated
strcasemodule matching Go 1.27's Unicode 17.0.0 tables, pendingFormulae:
moor(2.15.1) test failure:panic: strcase.UnicodeVersion "15.0.0" != unicode.Version "17.0.0"— all macOS arm64 mod: update charlievieth/strcase to v0.0.6 walles/moor#446teleport(18.9.0) test failure:panic: strcase.UnicodeVersion "15.0.0" != unicode.Version "17.0.0"— all macOS arm64 mod: update charlievieth/strcase to v0.0.6 gravitational/teleport#68786 Update charlievieth/strcase to v0.0.6 gravitational/teleport#68801, wait for 19.0.0 releasepanic: jsontext: invalid nil io.Readergrpcurl(1.9.3) test failure:panic: jsontext: invalid nil io.Reader— all macOS arm64Go 1.27 internal error —
package "X" without types was importedanubis(1.25.0) build failure:stringer: internal error: package "errors" without types was imported from "github.com/TecharoHQ/anubis/internal/dnsbl"— all macOS arm64go-critic(0.14.3) test failure:internal error: package "fmt" without types was imported from "command-line-arguments"— all macOS arm64 + Linux x86_64/arm64 chore: update goStdlib to go1.27 go-critic/go-critic#1530 go-critic 0.14.4 #289713tfproviderlint(0.31.0_1) test failure:internal error: package "log" without types was imported from "github.com/russellcardullo/terraform-provider-pingdom/pingdom"— all macOS arm64 + Linux x86_64/arm64Go 1.27 runtime analysis failure
go-size-analyzer(1.13.0) test failure:the length of module data section is to big: address 0x50f490, base 0x50f490, length 0xffffffffffaf6e10— Linux x86_64/arm64 onlyxgo(1.7.2) test failure:panic: runtime error: invalid memory address or nil pointer dereferenceingogen.(*Package).ForEachFile— all macOS arm64 + Linux x86_64/arm64Various other build failures
argo(4.0.7) build failure: panic ink8s.io/code-generator deepcopy-gen— macOS 15 arm64checkmake(0.3.2) build failure:golangci-lintgoconst 27 issues — all macOS arm64envoy(1.39.0) build failure:Target //source/exe:envoy-static.stripped failed to build— macOS 15 arm64 onlyffmate(2.0.18) build failure:ERR_PNPM_IGNORED_BUILDS— all macOS arm64grafana(13.1.0) build failure:running dsymutil failed: exit status 1— macOS 15/26 arm64parca(0.28.0) build failure:ERR_PNPM_LOCKFILE_CONFIG_MISMATCH— all macOS arm64syncthing(2.1.2) build failure:runtime go1.27rc2 not found incompat.yaml— all macOS arm64terracognita(0.8.4) build failure:no space left on device— macOS 15 arm64 only (CI environment issue)Test failure
fjira(1.5.3) test failure:mkdir .../.config/fjira: no such file or directory— all macOS arm64 fjira 1.5.6 #291846gastown(1.1.0) test failure:BuildError: Failed executing: .../gt install/Dolt port 3307 is already in use— all macOS arm64 gastown: pick free port for test #292635github-markdown-toc(2.0.1) test failure:Expected /\* \[Header\]\(#header\)/— TOC output empty/changed — macOS 14/26 arm64 github-markdown-toc: flush file in test #292659go-bindata(4.0.2) test failure:Expected /\\xff\\xff\\x85\\x11\\x4a/regex no longer matches generated output (gzip output changed in Go 1.27) — all macOS arm64 go-bindata: improve test #292590Test failure — assertion mismatch (needs test fix)
fdroidcl(0.8.1) test failure:Expected [...] to include "Games"— F-Droid removed "Games" category: fdroidcl: fix test #292773glider(0.16.4) test failure:Expected /The Missing Package Manager for macOS (or Linux)/— brew.sh tagline changed to "The Package Manager for Everywhere": glider: test fix #292780granted(0.39.0) test failure:Expected /Required flags "name, url" not set/→mkdir .config/granted: no such file or directory— all macOS arm64jprq(2.4) test failure:Expected /authentication failed/→jprq is now invite-only service: jprq: fix test #292815plow(1.4.0) test failure:Expected /2xx/→ httpbin.org returned5xx— macOS 14 arm64q(0.19.12) test failure:Expected /ns: ns1.dnsimple.com./→ DNS now returnsns1.dnsimple-edge.com.— all macOS arm64 q: fix test #294231GitHub API rate limit (CI environment issue)
github-release(0.11.0) test failure:API rate limit exceeded— macOS 14/26 arm64pinact(4.1.0) test failure:403 API rate limit exceeded— macOS 14 arm64 onlyExternal resource unavailable (CI environment issue)
amass(5.1.1) test failure:Failed to create a session with the Amass engine: status=500 Internal Server Error— all macOS arm64netdata(2.10.3_1) test failure:CLAIM: cannot load cloud config— all macOS arm64restish(2.2.0) test failure:503 Service Temporarily Unavailable— macOS 15/26 arm64squealer(1.2.12) test failure:fatal: could not read Username for 'https://github.com': terminal prompts disabled— all macOS arm64wormhole-william(1.0.8) test failure:dial ws://relay.magic-wormhole.io:4000/v1: connection refused— all macOS arm64xeol(0.10.8) test failure:the eol database was built 1 year ago (max allowed age is 12 weeks)— macOS 14/15 arm64Failed to download resource (404/403)
difi(0.2.30): difi: downgrade 0.2.30 to 0.2.11 #292821goredo(2.9.1):https://goredo.dabase.com/download/goredo-2.9.1.tar.zst— HTTP 403 — all macOS arm64 goredo: deprecate, moved to new URL #290944kuzco(1.9.1):https://github.com/RoseSecurity/Kuzco/archive/refs/tags/v1.9.1.tar.gz— HTTP 404 — all macOS arm64 kuzco: deprecate #291143v2ray(5.49.0): geosite resourcedlc.dat— HTTP 404 — all macOS arm64 v2ray: resource update #291144HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>?brew test <formula>?brew audit --strict <formula>(after doingHOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>)? If this is a new formula, does it passbrew audit --new <formula>?