Add deprecated attribute to outputs and variables

internal/schema/1.15/output_block.go

@@ -0,0 +1,20 @@
+// Copyright IBM Corp. 2020, 2026
+// SPDX-License-Identifier: MPL-2.0
+
+package schema
+
+import (
+	"github.com/hashicorp/hcl-lang/lang"
+	"github.com/hashicorp/hcl-lang/schema"
+	"github.com/zclconf/go-cty/cty"
+)
+
+func patchOutputBlockSchema(bs *schema.BlockSchema) *schema.BlockSchema {
+	bs.Body.Attributes["deprecated"] = &schema.AttributeSchema{
+		Constraint:  schema.LiteralType{Type: cty.String},
+		IsOptional:  true,
+		Description: lang.Markdown("Setting this value marks the output as deprecated. The string value provided should describe the reason for deprecation and suggest an alternative. Any usage of a deprecated output will result in a warning being emitted to the user."),
+	}
+
+	return bs
+}

internal/schema/1.15/root.go

@@ -0,0 +1,20 @@
+// Copyright IBM Corp. 2020, 2026
+// SPDX-License-Identifier: MPL-2.0
+
+package schema
+
+import (
+	"github.com/hashicorp/go-version"
+	"github.com/hashicorp/hcl-lang/schema"
+
+	v1_14_mod "github.com/hashicorp/terraform-schema/internal/schema/1.14"
+)
+
+func ModuleSchema(v *version.Version) *schema.BodySchema {
+	bs := v1_14_mod.ModuleSchema(v)
+
+	bs.Blocks["variable"] = patchVariableBlockSchema(bs.Blocks["variable"])
+	bs.Blocks["output"] = patchOutputBlockSchema(bs.Blocks["output"])
+
+	return bs
+}

internal/schema/1.15/variable_block.go

@@ -0,0 +1,20 @@
+// Copyright IBM Corp. 2020, 2026
+// SPDX-License-Identifier: MPL-2.0
+
+package schema
+
+import (
+	"github.com/hashicorp/hcl-lang/lang"
+	"github.com/hashicorp/hcl-lang/schema"
+	"github.com/zclconf/go-cty/cty"
+)
+
+func patchVariableBlockSchema(bs *schema.BlockSchema) *schema.BlockSchema {
+	bs.Body.Attributes["deprecated"] = &schema.AttributeSchema{
+		Constraint:  schema.LiteralType{Type: cty.String},
+		IsOptional:  true,
+		Description: lang.Markdown("Setting this value marks the variable as deprecated. The string value provided should describe the reason for deprecation and suggest an alternative. Any usage of a deprecated variable will result in a warning being emitted to the user."),
+	}
+
+	return bs
+}

schema/core_schema.go

@@ -14,6 +14,7 @@ import (
 	mod_v1_10 "github.com/hashicorp/terraform-schema/internal/schema/1.10"
 	mod_v1_12 "github.com/hashicorp/terraform-schema/internal/schema/1.12"
 	mod_v1_14 "github.com/hashicorp/terraform-schema/internal/schema/1.14"
+	mod_v1_15 "github.com/hashicorp/terraform-schema/internal/schema/1.15"
 	mod_v1_2 "github.com/hashicorp/terraform-schema/internal/schema/1.2"
 	mod_v1_4 "github.com/hashicorp/terraform-schema/internal/schema/1.4"
 	mod_v1_5 "github.com/hashicorp/terraform-schema/internal/schema/1.5"
@@ -40,13 +41,17 @@ var (
 	v1_10 = version.Must(version.NewVersion("1.10"))
 	v1_12 = version.Must(version.NewVersion("1.12"))
 	v1_14 = version.Must(version.NewVersion("1.14.0-beta1"))
+	v1_15 = version.Must(version.NewVersion("1.15.0-alpha20260204"))
 )
 
 // CoreModuleSchemaForVersion finds a module schema which is relevant
 // for the given Terraform version.
 // It will return error if such schema cannot be found.
 func CoreModuleSchemaForVersion(v *version.Version) (*schema.BodySchema, error) {
 	ver := v.Core()
+	if ver.GreaterThanOrEqual(v1_15) {
+		return mod_v1_15.ModuleSchema(ver), nil
+	}
 	if ver.GreaterThanOrEqual(v1_14) {
 		return mod_v1_14.ModuleSchema(ver), nil
 	}