Decorator Metadata proposal returned to usage Symbol.metadata

babel/proposals#87 (comment)
tc39/proposal-decorator-metadata#12

Author: zloirock

CHANGELOG.md

@@ -6,6 +6,7 @@
 - (Async) Explicit Resource Management proposals:
   - `(Async)DisposableStack.prototype.move` marks the original stack as disposed, [#1226](https://github.com/zloirock/core-js/issues/1226)
   - Some simplifications like [proposal-explicit-resource-management/150](https://github.com/tc39/proposal-explicit-resource-management/pull/150)
+- [Decorator Metadata proposal](https://github.com/tc39/proposal-decorator-metadata) returned to usage `Symbol.metadata`, [March 2023 TC39 meeting](https://github.com/babel/proposals/issues/87#issuecomment-1478790137), [proposal-decorator-metadata/12](https://github.com/tc39/proposal-decorator-metadata/pull/12)
 - Compat data improvements:
   - [`URLSearchParams.prototype.size`](https://github.com/whatwg/url/pull/734) marked as supported from FF112, NodeJS 19.8 and Deno 1.32
   - Added Safari 16.4 compat data

README.md

@@ -167,7 +167,7 @@ structuredClone(new Set([1, 2, 3])); // => new Set([1, 2, 3])
       - [`String.dedent`](#stringdedent)
       - [Async explicit resource management](#async-explicit-resource-management)
       - [`Symbol` predicates](#symbol-predicates)
-      - [`Symbol.metadataKey` for decorators metadata proposal](#symbolmetadatakey-for-decorators-metadata-proposal)
+      - [`Symbol.metadata` for decorators metadata proposal](#symbolmetadata-for-decorators-metadata-proposal)
     - [Stage 1 proposals](#stage-1-proposals)
       - [`Observable`](#observable)
       - [New collections methods](#new-collections-methods)
@@ -2616,17 +2616,17 @@ Symbol.isRegistered(Symbol('key')); // => false
 Symbol.isWellKnown(Symbol.iterator); // => true
 Symbol.isWellKnown(Symbol('key')); // => false
 ```
-##### [`Symbol.metadataKey` for decorators metadata proposal](https://github.com/tc39/proposal-decorator-metadata)[⬆](#index)
-Module [`esnext.symbol.metadata-key`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.symbol.metadata-key.js).
+##### [`Symbol.metadata` for decorators metadata proposal](https://github.com/tc39/proposal-decorator-metadata)[⬆](#index)
+Module [`esnext.symbol.metadata`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.symbol.metadata.js).
 ```js
 class Symbol {
-  static metadataKey: @@metadataKey;
+  static metadata: @@metadata;
 }
 ```
 [*CommonJS entry points:*](#commonjs-api)
 ```js
-core-js/proposals/decorator-metadata
-core-js(-pure)/full/symbol/metadata-key
+core-js/proposals/decorator-metadata-v2
+core-js(-pure)/full/symbol/metadata
 ```
 
 #### Stage 1 proposals[⬆](#index)

packages/core-js/proposals/decorator-metadata-v2.js

@@ -0,0 +1,2 @@
+// https://github.com/tc39/proposal-decorator-metadata
+require('../modules/esnext.symbol.metadata');

packages/core-js/proposals/decorator-metadata.js

@@ -1,2 +1,3 @@
+// TODO: Remove from `core-js@4`
 // https://github.com/tc39/proposal-decorator-metadata
 require('../modules/esnext.symbol.metadata-key');

packages/core-js/stage/2.js

@@ -3,14 +3,15 @@ var parent = require('./3');
 require('../proposals/array-is-template-object');
 require('../proposals/async-explicit-resource-management');
 require('../proposals/async-iterator-helpers');
-require('../proposals/decorator-metadata');
+require('../proposals/decorator-metadata-v2');
 require('../proposals/iterator-range');
 require('../proposals/map-upsert-stage-2');
 require('../proposals/string-dedent');
 require('../proposals/symbol-predicates');
 // TODO: Obsolete versions, remove from `core-js@4`
 require('../proposals/array-grouping');
 require('../proposals/decorators');
+require('../proposals/decorator-metadata');
 require('../proposals/iterator-helpers');
 require('../proposals/set-methods');
 require('../proposals/using-statement');