liyafan82 commented on a change in pull request #79:
URL: https://github.com/apache/arrow-site/pull/79#discussion_r504527232
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File path: _posts/2020-10-15-2.0.0-release.md
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+---
+layout: post
+title: "Apache Arrow 2.0.0 Release"
+date: "2020-10-14 00:00:00 -0600"
+author: pmc
+categories: [release]
+---
+<!--
+{% comment %}
+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.
+{% endcomment %}
+-->
+
+<!--
+
+To use this template:
+
+* Update all "XX" values with the appropriate numbers (you can get the
resolved issues and contributors count from `_release/2.0.0.md`)
+* Fill in the various sections below. Note that the audience is the broader
user community, not Arrow developers, so please write clearly using terms they
will understand and care about. Delete any sections that don't have any content
(as in, there are no changes to announce)
+* Delete this introductory comment
+
+ -->
+
+
+The Apache Arrow team is pleased to announce the 2.0.0 release. This covers
+over XX months of development work and includes [**XX resolved issues**][1]
+from [**XX distinct contributors**][2]. See the Install Page to learn how to
+get the libraries for your platform.
+
+The release notes below are not exhaustive and only expose selected highlights
+of the release. Many other bugfixes and improvements have been made: we refer
+you to the [complete changelog][3].
+
+## Community
+
+<!-- Acknowledge and link to any new committers and PMC members since the last
release. See previous release announcements for examples. -->
+
+## Columnar Format Notes
+
+## Arrow Flight RPC notes
+
+## C++ notes
+
+## C# notes
+
+## Go notes
+
+## Java notes
+
Review comment:
@nealrichardson Please check if the following notes are reasonable for
Java. Thanks for your effort.
```suggestion
The Java package has supported a number of new features.
Users can validate vectors in a wider range of aspects, if they are willing
to take more time.
In dictionary encoding, dictionary indices can be expressed as unsinged
integers.
A framework for data compression has been setup for IPC.
The calculation for vector capacity has been simplified, so users should
experience notable performance
improvements for various 'setSafe' methods.
Bugs for JDBC adapters, sort algorithms, and ComplexCopier have been
resolved to make them more usable.
```
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