Raise the Go minimum to 1.26.0

build_test.go

@@ -516,7 +516,7 @@ func newBuildConsumer(t *testing.T, mainSource string) string {
 	if err != nil {
 		t.Fatal(err)
 	}
-	module := fmt.Sprintf("module example.com/buildfixture\n\ngo 1.25.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
+	module := fmt.Sprintf("module example.com/buildfixture\n\ngo 1.26.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
 	writeBuildFixture(t, repository, "go.mod", module)
 	writeBuildFixture(t, repository, "cmd/app/main.go", mainSource)
 	writeBuildFixture(t, repository, "cmd/app/main_test.go", "package main\nimport \"testing\"\nfunc TestCandidateFixture(t *testing.T) {}\n")
@@ -534,7 +534,7 @@ func prepareCandidateBuild(t *testing.T, repository, mainSource string) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	module := fmt.Sprintf("module example.com/candidatebuild\n\ngo 1.25.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
+	module := fmt.Sprintf("module example.com/candidatebuild\n\ngo 1.26.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
 	writeFile(t, repository, "go.mod", module)
 	writeFile(t, repository, ".gitignore", "dist/\n")
 	writeFile(t, repository, "cmd/app/main.go", mainSource)

buildinfo/version_integration_test.go

@@ -19,7 +19,7 @@ func TestVersionInConsumerExecutable(t *testing.T) {
 	dir := t.TempDir()
 	module := fmt.Sprintf(`module example.com/versionfixture
 
-go 1.25.0
+go 1.26.0
 
 require gitea.maximumdirect.net/eric/ReleaseKit v0.0.0
 

cmd/releasekit/main_test.go

@@ -1155,7 +1155,7 @@ func newCLIBuildRepository(t *testing.T, mainSource string) string {
 	if err != nil {
 		t.Fatal(err)
 	}
-	module := fmt.Sprintf("module example.com/cli-candidate\n\ngo 1.25.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
+	module := fmt.Sprintf("module example.com/cli-candidate\n\ngo 1.26.0\n\nrequire gitea.maximumdirect.net/eric/ReleaseKit v0.0.0\n\nreplace gitea.maximumdirect.net/eric/ReleaseKit => %s\n", filepath.ToSlash(root))
 	write := func(name, contents string) {
 		t.Helper()
 		path := filepath.Join(repository, filepath.FromSlash(name))

cmd/releasekit/woodpecker_test.go

@@ -487,7 +487,7 @@ func executeWoodpeckerBlock(block, repository string, environment map[string]str
 func selectReleaseKitModule(t *testing.T, repository, releaseKitSource string, includeSum bool) {
 	t.Helper()
 	const module = "gitea.maximumdirect.net/eric/ReleaseKit"
-	goMod := fmt.Sprintf("module example.com/tagged-app\n\ngo 1.25.0\n\nrequire %s v0.2.0\n\nreplace %s => %s\n", module, module, strconv.Quote(releaseKitSource))
+	goMod := fmt.Sprintf("module example.com/tagged-app\n\ngo 1.26.0\n\nrequire %s v0.2.0\n\nreplace %s => %s\n", module, module, strconv.Quote(releaseKitSource))
 	writeRepositoryFile(t, repository, "go.mod", goMod)
 	cliGitRun(t, repository, "add", "go.mod")
 	if includeSum {

docs/releases/v0.3.0.md

@@ -42,10 +42,11 @@ complete in-memory diagnostics and existing validation selections.
 
 ## Compatibility
 
-The declared minimum Go version remains 1.25.0, and module dependencies are
+The declared minimum Go version increases from 1.25.0 to 1.26.0. Consumers
-unchanged from v0.2.0. ReleaseKit's maintainer build toolchain and maintained
+require Go 1.26.0 or newer; dependency versions are unchanged from v0.2.0.
-Woodpecker template images use Go 1.26.8; consumers select a local toolchain
+ReleaseKit's maintainer build toolchain and maintained Woodpecker template images
-compatible with their module and the selected ReleaseKit version.
+use Go 1.26.8; consumers select a local toolchain compatible with their module
+and the selected ReleaseKit version.
 
 The root orchestration facade, separate lightweight `buildinfo` facade, public
 signatures, CLI commands, and profile schema are unchanged. Existing v0.2.0
@@ -61,7 +62,9 @@ ReleaseKit's deliverables remain the source tag and hosted Gitea note page.
 
 ## Upgrade guidance
 
-1. Select v0.3.0 using the dependency form appropriate to the consumer.
+1. Use Go 1.26.0 or newer for local tooling and CI before selecting v0.3.0.
+   Updating ReleaseKit in a shared module graph can raise the consumer's declared
+   Go minimum. Select the dependency form appropriate to the consumer.
 
    Go API consumers:
 

go.mod

@@ -1,6 +1,6 @@
 module gitea.maximumdirect.net/eric/ReleaseKit
 
-go 1.25.0
+go 1.26.0
 
 require (
 	github.com/yuin/goldmark/v2 v2.1.6