kou commented on a change in pull request #127:
URL: https://github.com/apache/arrow-site/pull/127#discussion_r677812946
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File path: _posts/2021-07-20-5.0.0-release.md
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+---
+layout: post
+title: "Apache Arrow 5.0.0 Release"
+date: "2020-07-16 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
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+(the "License"); you may not use this file except in compliance with
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+http://www.apache.org/licenses/LICENSE-2.0
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+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.
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+{% endcomment %}
+-->
+
+<!--
+
+To use this template:
+
+* Update all "XX" values with the appropriate numbers (you can get the
resolved issues and contributors count from `_release/5.0.0.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 5.0.0 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
+
+Since the 4.0.0 release, Daniël Heres, Kazuaki Ishizaki, Dominik Moritz, and
Weston Pace
+have been invited as committers to Arrow,
+and Benjamin Kietzman and David Li have joined the Project Management Committee
+(PMC). Thank you for all of your contributions!
+
+## Columnar Format Notes
+
+Official IANA Media types (MIME types) have been registered for Apache
+Arrow IPC protocol data, both [stream]({{ site.baseurl
}}/docs/format/Columnar.html#ipc-streaming-format) and [file]({{ site.baseurl
}}/docs/format/Columnar.html#ipc-file-format) variants:
+
+*
https://www.iana.org/assignments/media-types/application/vnd.apache.arrow.stream
+*
https://www.iana.org/assignments/media-types/application/vnd.apache.arrow.file
+
+We recommend ".arrow" as the IPC file format file extension and ".arrows" for
the IPC streaming format file extension.
+
+## Arrow Flight RPC notes
+
+The Go implementation now supports custom metadata and middleware, and has
been added to integration testing.
+
+In Python, some operations can now be interrupted via Control-C.
+
+## C++ notes
+
+## C# notes
+
+## Go notes
+
+## Java notes
+
+## JavaScript notes
+
+* Tables do not extend DataFrames anymore. This enables smaller bundles.
[#10277](https://github.com/apache/arrow/pull/10277)
+* Arrow uses closure compiler for all UMD bundles, making them smaller.
[#10281](https://github.com/apache/arrow/pull/10281)
+* The npm package now comes with declaration maps for better navigation from
types to source code. [#10673](https://github.com/apache/arrow/pull/10673)
+* Updated dependencies and improvements to the code.
+
+## Python notes
+
+* Datasets can now scan files asynchronously when the `use_async=True` option
is provided to `Dataset.scanner`, `Dataset.to_table`, or `Dataset.to_batches`
methods. This should provide better performance in environments where I/O can
be slow, such as with remote sources.
+* Arrow now provides builtin support for writing CSV files through
`pyarrow.csv.write_csv`
+* Wheels for Apple M1 Macs are now provided.
+* Many new `pyarrow.compute` functions are available, and introspection of the
functions was improved so that they look more like standard Python functions.
+* It is now possible to access ORC file metadata from Python `ORCFile` objects
+* Building a `StructArray` now accepts a `mask` like other arrays
+* Many updates and fixes for the documentation
+
+## R notes
+
+In this release, we've more than doubled the number of functions you can call
on Arrow Datasets inside `dplyr::filter()` and `mutate()`, including many more
string, datetime, and math functions. You can also write Datasets to CSV files,
in addition to Parquet and Feather. We've also deepened support for the Arrow C
interface, which is used in the Python interface and allows integration with
other projects, such as DuckDB.
+
+For more on what’s in the 5.0.0 R package, see the [R changelog][4].
+
+## Ruby and C GLib notes
Review comment:
Sorry for not working on this...
I've added notes for Ruby and C GLib.
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