alamb commented on a change in pull request #128:
URL: https://github.com/apache/arrow-site/pull/128#discussion_r679077794
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File path: _posts/2021-07-20-5.0.0-rs-release.md
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+---
+layout: post
+title: Apache Arrow Rust 5.0.0 Release
+date: "2021-07-20 00:00:00"
+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 %}
+-->
+
+We recently released the 5.0.0 Rust version of [Apache
Arrow](https://arrow.apache.org/), and this post highlights some of the
improvements we have made. The full changelog can be found
[here](https://github.com/apache/arrow-rs/blob/5.0.0/CHANGELOG.md).
+
+<!--
+(arrow_dev) alamb@MacBook-Pro:~/Software/arrow-rs$ git log --pretty=oneline
4.0.0..5.0.0 | wc -l
+ 161
+(arrow_dev) alamb@MacBook-Pro:~/Software/arrow-rs$ git shortlog -sn
4.0.0..5.0.0 | wc -l
+ 35 // but Jorge is double counted
+-->
+
+The Rust Arrow implementation would not be possible without the wonderful work
and support of our community, and the 5.0.0 release is no exception. It
includes 161 commits from 34 individual contributors, many of them with their
first contribution. Thank you all very much.
+
+# Arrow
+This release contains bug fixes, performance improvements, and a slimmer
dependency stack when default features are disabled. Documentation has been
improved and more examples have been added.
+
+Feature-wise, there is a [new
kernel](https://github.com/apache/arrow-rs/pull/424) which lexicographically
partitions points as well as usability enhancements for creating and
manipulating Record Batches. Arrow Flight's API usability has [been
improved](https://github.com/apache/arrow-rs/pull/377)
+
+We continue to leverage the Rust ecosystem to deliver reliable and performant
code, and the Rust test suite now includes runs with the [MIRI
checker](https://github.com/rust-lang/miri) (a sort of valgrind for Rust) for
memory access violations.
+
+# Parquet
+The `parquet-derive` crate now automatically derives the required parquet
schema, and the `parquet` crate had several bug fixes and enhancements.
+
+# More Frequent Releases
+Arrow releases major versions every three months. The Rust implementation has
been experimenting with releasing minor version updates to speed the flow of
new features and fixes. By implementing a new development process, as described
in [A New Development Workflow for Arrow's Rust
Implementation](https://arrow.apache.org/blog/2021/05/04/rust-dev-workflow/) we
have successfully created 4 minor releases on the 4.x.x line every other week
without any reports of breakage.
+
+You can always find the latest releases on crates.io:
[`arrow`](https://crates.io/crates/arrow),
[`parquet`](https://crates.io/crates/parquet),
[`arrow-flight`](https://crates.io/crates/arrow-flight), and
[`parquet-derive`](https://crates.io/crates/parquet-derive).
+
+# DataFusion & Ballista
+[DataFusion](https://docs.rs/datafusion/4.0.0/datafusion/) is an in-memory
query engine with DataFrame and SQL APIs, built on top of Arrow. Ballista is a
distributed compute platform. These projects are now in their [own
repository](https://github.com/apache/arrow-datafusion), and are no longer
released in lock-step with Arrow. Expect further news in this area soon.
+
+# Roadmap for 6.0.0 and Beyond
+Here are some of the initiatives that contributors are currently working on
for future releases:
+
+* Improved performance of compute kernels
+* date/time/timestamp/interval compute kernels
+* A rewrite of the core of the array representation to remove the use of
`unsafe` and make it faster and more secure -- see the [mailing
list](https://lists.apache.org/thread.html/recac1f6dc982bab2923f8fb6992e2d4c927f46daff5f03ed6c4de19c%40%3Cdev.arrow.apache.org%3E)
discussion for more details.
Review comment:
I clarified that the roadmap involved preparing for this transition and
left details vague
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