release 5.2.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "echarts",
-  "version": "5.1.2",
+  "version": "5.2.0",
   "description": "Apache ECharts is a powerful, interactive charting and data visualization library for browser",
   "license": "Apache-2.0",
   "keywords": [
@@ -64,7 +64,7 @@
   },
   "dependencies": {
     "tslib": "2.3.0",
-    "zrender": "npm:zrender-nightly@^5.1.2-dev.20210720"
+    "zrender": "5.2.0"
   },
   "devDependencies": {
     "@babel/code-frame": "7.10.4",

src/core/echarts.ts

@@ -139,10 +139,10 @@ type ModelFinder = modelUtil.ModelFinder;
 
 const hasWindow = typeof window !== 'undefined';
 
-export const version = '5.1.2';
+export const version = '5.2.0';
 
 export const dependencies = {
-    zrender: '5.1.1'
+    zrender: '5.2.0'
 };
 
 const TEST_FRAME_REMAIN_TIME = 1;

src/label/installLabelLayout.ts

@@ -1,3 +1,23 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
 import { EChartsExtensionInstallRegisters } from '../extension';
 import { makeInner } from '../util/model';
 import LabelManager from './LabelManager';

src/label/sectorLabel.ts

@@ -1,3 +1,23 @@
+
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
 import {calculateTextPosition, TextPositionCalculationResult} from 'zrender/src/contain/text';
 import { RectLike } from 'zrender/src/core/BoundingRect';
 import {BuiltinTextPosition, TextAlign, TextVerticalAlign} from 'zrender/src/core/types';