chore: bump OT Fabric libraries and align the Go floor

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
       coverage-min: "90"
       test-exclude-regex: "/example(s)?($|/)"
       codecov-name: sparkplugbctl
-      go-versions: '["1.27"]'
+      go-versions: '["1.26", "1.27"]'
       golangci-lint-version: v2.15.0
       policy-version: v1.4.2
     secrets: inherit

.github/workflows/release.yaml

@@ -20,7 +20,7 @@ permissions:
 
 jobs:
   release:
-    uses: otfabric/.github/.github/workflows/go-binary-release.yml@v3.3.0
+    uses: otfabric/.github/.github/workflows/go-binary-release.yml@v3.6.0
     with:
       bump: ${{ inputs.bump }}
       binary-name: sparkplugbctl

README.md

@@ -2,7 +2,7 @@
 
 Sparkplug B 3.0.0 CLI for MQTT monitoring, publishing, simulation and debugging.
 
-[![Go](https://img.shields.io/badge/Go-1.27-00ADD8?logo=go&logoColor=white)](https://go.dev)
+[![Go](https://img.shields.io/badge/Go-1.26-00ADD8?logo=go&logoColor=white)](https://go.dev)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
 [![CI](https://github.com/otfabric/sparkplugbctl/actions/workflows/ci.yaml/badge.svg)](https://github.com/otfabric/sparkplugbctl/actions/workflows/ci.yaml)
 [![Release](https://img.shields.io/github/v/release/otfabric/sparkplugbctl?include_prereleases)](https://github.com/otfabric/sparkplugbctl/releases)
@@ -26,7 +26,7 @@ irm https://get.otfabric.io/sparkplugbctl.ps1 | iex
 
 Linux (amd64, arm64, armv7), macOS (Intel, Apple silicon) and Windows (amd64, arm64). The installer verifies the release's SHA-256 checksum, installs per user without `sudo` (`~/.local/bin`, Windows `%LOCALAPPDATA%\OTFabric\bin`), and upgrades in place when run again. Pin a version with `OTF_VERSION=x.y.z`; for CI, containers and device images use `OTF_UNMANAGED_INSTALL=<dir>`; all options: [otfabric/install](https://github.com/otfabric/install#options). For offline machines, the archives and checksums are on [Releases](https://github.com/otfabric/sparkplugbctl/releases).
 
-From source (Go 1.27.3+): `go install github.com/otfabric/sparkplugbctl@latest`
+From source (Go 1.26.0+): `go install github.com/otfabric/sparkplugbctl@latest`
 
 ### Shell completion
 

RELEASE.md

@@ -1,5 +1,22 @@
 # sparkplugbctl Releases
 
+## v0.4.1
+
+**Date:** 2026-11-08
+**Previous release:** v0.4.0
+
+### Changed
+
+- Built on go-sparkplugb v0.3.4 (was v0.3.3). Its `edge` fix makes a rebirth (`Node.Rebirth`, and so the answer to an NCMD rebirth) publish the DBIRTHs in the order the devices were first born, instead of map order, and reads the devices' state under the lock, which removes a data race with a device death or data published at the same time. `version` lists `go-sparkplugb 0.3.4`.
+- The minimum Go version is now 1.26.0 (was 1.27.3): `go.mod` declares `go 1.26.0`, and CI tests Go 1.26 and 1.27.
+- Release binaries are built with the latest Go 1.26 patch release (otfabric/.github release workflow v3.6.0); they were built with the exact Go version in `go.mod`.
+
+### Tests
+
+- `TestVersion` passes on Go 1.26, whose test binaries record no dependencies, so the expected line has no libraries there; the e2e test checks that the built binary names go-sparkplugb in `version` and `version --json`.
+
+---
+
 ## v0.4.0
 
 **Date:** 2026-11-07

cmd/codec_test.go

@@ -29,10 +29,13 @@ func TestVersion(t *testing.T) {
 	defer func(v, tg, c, d string) { Version, Tag, Commit, BuildDate = v, tg, c, d }(Version, Tag, Commit, BuildDate)
 	Version, Tag, Commit, BuildDate = "0.4.0", "v0.4.0", "1802d0f9afe8642d1e278120b76fcdfac967cb9e", "2026-11-05T15:41:49Z"
 	platform := runtime.Version() + ", " + runtime.GOOS + "/" + runtime.GOARCH
-	lib := sparkplugbVersion(t)
-	wantText := "sparkplugbctl 0.4.0 (tag v0.4.0, commit 1802d0f9afe8642d1e278120b76fcdfac967cb9e, built 2026-11-05T15:41:49Z, go-sparkplugb " + lib + ", " + platform + ")\n"
+	libText, libJSON := "", "[]"
+	if lib, ok := sparkplugbVersion(t); ok {
+		libText, libJSON = "go-sparkplugb "+lib+", ", `[{"name":"go-sparkplugb","version":"`+lib+`"}]`
+	}
+	wantText := "sparkplugbctl 0.4.0 (tag v0.4.0, commit 1802d0f9afe8642d1e278120b76fcdfac967cb9e, built 2026-11-05T15:41:49Z, " + libText + platform + ")\n"
 	wantJSON := `{"name":"sparkplugbctl","version":"0.4.0","tag":"v0.4.0","commit":"1802d0f9afe8642d1e278120b76fcdfac967cb9e",` +
-		`"built":"2026-11-05T15:41:49Z","libraries":[{"name":"go-sparkplugb","version":"` + lib + `"}],"go":"` + runtime.Version() + `","platform":"` + runtime.GOOS + "/" + runtime.GOARCH + `"}` + "\n"
+		`"built":"2026-11-05T15:41:49Z","libraries":` + libJSON + `,"go":"` + runtime.Version() + `","platform":"` + runtime.GOOS + "/" + runtime.GOARCH + `"}` + "\n"
 
 	t.Setenv("SPARKPLUGBCTL_FORMAT", "")
 	t.Setenv("SPARKPLUGBCTL_OUTPUT_FORMAT", "")
@@ -61,20 +64,26 @@ func TestVersion(t *testing.T) {
 }
 
 // sparkplugbVersion is the go-sparkplugb version of the test binary, without
-// the leading v.
-func sparkplugbVersion(t *testing.T) string {
+// the leading v. ok is false when the build information of the test binary
+// lists no dependencies: Go 1.26 records none in a test binary (Go 1.27 does),
+// and then the version line lists no libraries. The e2e test checks that a
+// built binary names go-sparkplugb.
+func sparkplugbVersion(t *testing.T) (version string, ok bool) {
 	t.Helper()
 	bi, ok := debug.ReadBuildInfo()
 	if !ok {
 		t.Fatal("no build information")
 	}
+	if len(bi.Deps) == 0 {
+		return "", false
+	}
 	for _, d := range bi.Deps {
 		if d.Path == "github.com/otfabric/go-sparkplugb" {
-			return strings.TrimPrefix(d.Version, "v")
+			return strings.TrimPrefix(d.Version, "v"), true
 		}
 	}
 	t.Fatal("go-sparkplugb is not a dependency")
-	return ""
+	return "", false
 }
 
 // TestEnvironment checks that a global flag comes from its SPARKPLUGBCTL_

e2e/e2e_test.go

@@ -49,10 +49,16 @@ func TestVersionPrintsTheBuiltVersion(t *testing.T) {
 	if !strings.HasPrefix(output, "sparkplugbctl "+want+" (") || strings.Count(output, "\n") != 1 {
 		t.Fatalf("output is not one line naming sparkplugbctl %s:\n%s", want, output)
 	}
+	if !strings.Contains(output, ", go-sparkplugb ") {
+		t.Fatalf("version does not name go-sparkplugb:\n%s", output)
+	}
 	output, code = run(t, "version", "--json")
 	if code != 0 || !strings.HasPrefix(output, `{"name":"sparkplugbctl","version":"`+want+`","tag":`) {
 		t.Fatalf("version --json: exit %d\n%s", code, output)
 	}
+	if !strings.Contains(output, `"libraries":[{"name":"go-sparkplugb","version":"`) {
+		t.Fatalf("version --json does not list go-sparkplugb:\n%s", output)
+	}
 }
 
 // An unknown command is a usage error: exit code 2 in docs/exitcodes.md.

go.mod

@@ -1,10 +1,10 @@
 module github.com/otfabric/sparkplugbctl
 
-go 1.27.3
+go 1.26.0
 
 require (
 	github.com/mochi-mqtt/server/v2 v2.7.9
-	github.com/otfabric/go-sparkplugb v0.3.3
+	github.com/otfabric/go-sparkplugb v0.3.4
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	google.golang.org/protobuf v1.36.12

go.sum

@@ -13,8 +13,8 @@ github.com/jinzhu/copier v0.3.5 h1:GlvfUwHk62RokgqVNvYsku0TATCF7bAHVwEXoBh3iJg=
 github.com/jinzhu/copier v0.3.5/go.mod h1:DfbEm0FYsaqBcKcFuvmOZb218JkPGtvSHsKg8S8hyyg=
 github.com/mochi-mqtt/server/v2 v2.7.9 h1:y0g4vrSLAag7T07l2oCzOa/+nKVLoazKEWAArwqBNYI=
 github.com/mochi-mqtt/server/v2 v2.7.9/go.mod h1:lZD3j35AVNqJL5cezlnSkuG05c0FCHSsfAKSPBOSbqc=
-github.com/otfabric/go-sparkplugb v0.3.3 h1:u1HbdPacfAMjpe0264euEDwOddDfFqYu+LZBlYhO+Vc=
-github.com/otfabric/go-sparkplugb v0.3.3/go.mod h1:GzF84cTz3JERwglT2xsMGyxdS2BWr4mHUpYiGJuAYBw=
+github.com/otfabric/go-sparkplugb v0.3.4 h1:rNrc2xHgSLdcLzhhHXmHlnkVZq1qa8LMcRvKpbTR2/g=
+github.com/otfabric/go-sparkplugb v0.3.4/go.mod h1:GzF84cTz3JERwglT2xsMGyxdS2BWr4mHUpYiGJuAYBw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rs/xid v1.4.0 h1:qd7wPTDkN6KQx2VmMBLrpHkiyQwgFXRnkOLacUiaSNY=