diff --git a/schemas/devcontainer-features.schema.json b/schemas/devcontainer-features.schema.json
deleted file mode 100644
index d17d4c616..000000000
--- a/schemas/devcontainer-features.schema.json
+++ /dev/null
@@ -1,266 +0,0 @@
-{
-    "$schema": "http://json-schema.org/draft-07/schema#",
-    "$ref": "#/definitions/FeaturesJson",
-    "definitions": {
-        "FeaturesJson": {
-            "type": "object",
-            "properties": {
-                "features": {
-                    "type": "array",
-                    "items": {
-                        "$ref": "#/definitions/Feature"
-                    }
-                }
-            },
-            "required": [
-                "features"
-            ],
-            "additionalProperties": false
-        },
-        "Feature": {
-            "type": "object",
-            "properties": {
-                "id": {
-                    "type": "string",
-                    "description": "Identifier for this feature. Used in the devcontainer.json to refer to this feature.",
-                    "examples": ["docker-in-docker"]
-                },
-                "name": {
-                    "type": "string",
-                    "description": "Name for this feature. Show to the user in the UI.",
-                    "examples": ["Docker in Docker"]
-                },
-                "documentationURL": {
-                    "type": "string",
-                    "description": "URL for documentation on this feature.",
-                    "examples": ["https://example.com/docs/docker-in-docker"]
-                },
-                "options": {
-                    "type": "object",
-                    "description": "Options provided are written to a devcontainer-features.env file to be sourced during image build.  Environment variables follow the format _BUILD_ARG_<FEATURE_ID>_<OPTION_NAME>.",
-                    "additionalProperties": {
-                        "$ref": "#/definitions/FeatureOption"
-                    }
-                },
-                "buildArg": {
-                    "type": "string",
-                    "description": "DEPRECATED: Old property used for temporary compatibility."
-                },
-                "containerEnv": {
-                    "type": "object",
-                    "description": "Container environment variables.",
-                    "additionalProperties": {
-                        "examples": [ { "DOCKER__BUILDKIT": "1" } ],
-                        "type": "string",
-                        "description": "Environment variables to inject into the Dockerfile at build-time."
-                    }
-                },
-                "mounts": {
-                    "type": "array",
-                    "description": "Mount points to set up when creating the container.",
-                    "items": {
-                        "$ref": "#/definitions/Mount"
-                    }
-                },
-                "extensions": {
-                    "type": "array",
-                     "description": "An array of extensions that should be installed into the container.",
-                    "examples": [ "ms-azuretools.vscode-docker" ],
-                    "items": {
-                        "type": "string",
-                        "description": "VS Code extension identifiers to install."
-                    }
-                },
-                "settings": {
-                    "$ref": "vscode://schemas/settings/machine",
-                    "type": "object",
-                    "description": "Machine specific settings that should be copied into the container."
-                },
-                "init": {
-                    "type": "boolean",
-                    "description": "Passes the --init flag at runtime."
-                },
-                "privileged": {
-                    "type": "boolean",
-                    "description": "Passes the --privileged flag at runtime."
-                },
-                "capAdd": {
-                    "type": "array",
-                    "description": "Passes docker capabilities to include at runtime.",
-                    "examples": [ "SYS_PTRACE" ],
-                    "items": {
-                        "type": "string"
-                    }
-                },
-                "securityOpt": {
-                    "type": "array",
-                    "description": "Passes docker security options to include at runtime.",
-                    "examples": [ "seccomp=unconfined" ],
-                    "items": {
-                        "type": "string"
-                    }
-                },
-                "entrypoint": {
-                    "type": "string",
-                    "description": "Provides a custom entrypoint.",
-                    "examples": ["/usr/local/share/docker-init.sh"]
-                },
-                "include": {
-                    "type": "array",
-                    "description": "Base definitions that permit this features to be composed onto it.",
-                    "examples": [ ["ubuntu", "java"] ],
-                    "items": {
-                        "type": "string"
-                    }
-                },
-                "exclude": {
-                    "type": "array",
-                    "description": "Base definitions that do not permit this features to be composed onto it.",
-                    "examples": [ ["ubuntu", "java"] ],
-                    "items": {
-                        "type": "string"
-                    }
-                },
-                "vscode": {
-                    "type": "object",
-                    "properties": {
-                        "extensions": {
-                            "type": "array",
-                             "description": "An array of extensions that should be installed into the container.",
-                            "examples": [ "ms-azuretools.vscode-docker" ],
-                            "items": {
-                                "type": "string",
-                                "description": "VS Code extension identifiers to install."
-                            }
-                        },
-                        "settings": {
-                            "$ref": "vscode://schemas/settings/machine",
-                            "type": "object",
-                            "description": "Machine specific settings that should be copied into the container."
-                        }
-                    }
-                }
-            },
-            "required": [
-                "id",
-                "name"
-            ],
-            "additionalProperties": false
-        },
-        "FeatureOption": {
-            "anyOf": [
-                {
-                    "type": "object",
-                    "description": "Option identifier",
-                    "properties": {
-                        "type": {
-                            "type": "string",
-                            "const": "boolean",
-                            "description": "Option type."
-                        },
-                        "default": {
-                            "type": "boolean",
-                            "description": "A default value if none provided."
-                        },
-                        "description": {
-                            "description": "Optional hint for the given option.",
-                            "type": "string"
-                        }
-                    },
-                    "required": [
-                        "type"
-                    ],
-                    "additionalProperties": false
-                },
-                {
-                    "type": "object",
-                    "description": "Option identifier.",
-                    "properties": {
-                        "type": {
-                            "type": "string",
-                            "const": "string",
-                            "description": "Option type."
-                        },
-                        "enum": {
-                            "type": "array",
-                            "description": "Enumeration of all possible values for the given option. Custom values are not accepted.",
-                            "items": {
-                                "type": "string"
-                            }
-                        },
-                        "default": {
-                            "type": "string",
-                            "description": "A default value if none provided."
-                        },
-                        "description": {
-                            "description": "Optional hint for the given option.",
-                            "type": "string"
-                        }
-                    },
-                    "required": [
-                        "type"
-                    ],
-                    "additionalProperties": false
-                },
-                {
-                    "type": "object",
-                    "description": "Option identifier.",
-                    "properties": {
-                        "type": {
-                            "type": "string",
-                            "const": "string",
-                            "description": "Option type."
-                        },
-                        "proposals": {
-                            "type": "array",
-                            "description": "List of suggested values for the given option. Custom values are also accepted.",
-                            "examples": [ [ "latest", "20.10" ]],
-                            "items": {
-                                "type": "string"
-                            }
-                        },
-                        "default": {
-                            "type": "string",
-                            "description": "A default value if none provided."
-                        },
-                        "description": {
-                            "description": "Optional hint for the given option.",
-                            "type": "string"
-                        }
-                    },
-                    "required": [
-                        "type"
-                    ],
-                    "additionalProperties": false
-                }
-            ]
-        },
-        "Mount": {
-            "type": "object",
-            "properties": {
-                "type": {
-                    "type": "string",
-                    "enum": [
-                        "bind",
-                        "volume"
-                    ],
-                    "description": "Mount type."
-                },
-                "source": {
-                    "type": "string",
-                    "description": "Mount source."
-                },
-                "target": {
-                    "type": "string",
-                    "description": "Mount target."
-                }
-            },
-            "required": [
-                "type",
-                "source",
-                "target"
-            ],
-            "additionalProperties": false
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/spec-configuration/containerFeaturesConfiguration.ts b/src/spec-configuration/containerFeaturesConfiguration.ts
index 4f86732f0..22725df9a 100644
--- a/src/spec-configuration/containerFeaturesConfiguration.ts
+++ b/src/spec-configuration/containerFeaturesConfiguration.ts
@@ -48,6 +48,7 @@ export interface Feature {
 	included: boolean; // set programmatically
 	customizations?: VSCodeCustomizations;
 	installsAfter?: string[];
+	deprecated?: boolean;
 	legacyIds?: string[];
 	currentId?: string; // set programmatically
 }