amoeba commented on code in PR #500:
URL: https://github.com/apache/arrow-site/pull/500#discussion_r1581706506
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_posts/2024-04-20-16.0.0-release.md:
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+---
+layout: post
+title: "Apache Arrow 16.0.0 Release"
+date: "2024-04-20 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 %}
+-->
+
+
+The Apache Arrow team is pleased to announce the 16.0.0 release. This covers
+over 3 months of development work and includes [**385 resolved issues**][1]
+on [**586 distinct commits**][2] from [**119 distinct contributors**][2].
+See the [Install Page](https://arrow.apache.org/install/)
+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 15.0.0 release, Jeffrey Vo, Jay Zhan, Bryce Mecum and Sarah Gilmore
+have been invited to be committers.
+No new members have joined the Project Management Committee (PMC).
+
+Thanks for your contributions and participation in the project!
+
+## C Data Interface notes
+
+
+## Arrow Flight RPC notes
+
+
+## C++ notes
+
Review Comment:
I worked through this quickly today but (1) need to finish three todos at
the top and (2) proof-read it before we merge. I'll do that tomorrow.
```suggestion
For C++ notes refer to the full changelog.
## Highlights
- Initial support for the Azure Blob Storage has been added
([GH-18014](https://github.com/apache/arrow/issues/18014)).
- Arrow C++ can now be built with Emscripten
([GH-37821](https://github.com/apache/arrow/pull/37821)) which lays the
foundation for running Arrow C++ under WASM runtimes and eventually
[PyArrow](https://github.com/apache/arrow/pull/37822) as well.
- Arrow's filesystem modules have been separated out into individual
libraries and this change enables writing and registering custom filesystem
implementations ([GH-38309](https://github.com/apache/arrow/issues/38309)).
## Breaking Changes
- `Function::is_impure` has been renamed to `is_pure`
([GH-40607](https://github.com/apache/arrow/issues/40607)).
## Compute
### Bug Fixes
- Fixed a potential crash when accessing the `true_count` property on a
BooleanArray ([GH-41016](https://github.com/apache/arrow/issues/41016)).
### Performance improvements
- Significantly improved performance of the take kernel on certain types of
inputs ([GH-40207](https://github.com/apache/arrow/issues/40207)).
### Enhancements
- Support for casting to and from half-float (float16) has been added
([GH-20213](https://github.com/apache/arrow/issues/20213)).
- Added support for residual predicates to Swiss Join implementation
([GH-20339](https://github.com/apache/arrow/issues/20339)).
- Expanded support to primitive filter implementation for all fixed-width
primitive types and take filter implementation for all well-known fixed-width
types ([GH-39740](https://github.com/apache/arrow/issues/39740)).
- Added support for calling the `binary_slice` kernel on Fixed-Size Binary
Arrays ([GH-39231](https://github.com/apache/arrow/issues/39231)).
- The cast kernel now supports casting from LargeString, Binary, and
LargeBinary to Dictionary
([GH-39463](https://github.com/apache/arrow/issues/39463)).
- Fields of different decimal precision can now be used together in
arithmetic operations without an explicit cast beforehand.
([GH-40126](https://github.com/apache/arrow/issues/40126)).
## Datasets
- Improved backpressure handling in the Dataset Writer which can
significantly reduce memory usage for some use cases
([https://github.com/apache/arrow/pull/40722](https://github.com/apache/arrow/pull/40722)).
## Parquet
- Byte stream split encoding support has been added for
FIXED_LEN_BYTE_ARRAY, INT32, and INT64 which enables this encoding for
half-float (float16) and fixed-width decimal
([GH-39978](https://github.com/apache/arrow/issues/39978)).
- Decoding boolean values has been made faster for a variety of cases
([GH-40872](https://github.com/apache/arrow/issues/40872)).
## Filesystems
### New Features
- In addition to building the individual filesystem implementations as
separate modules, users can now write and register custom filesystem
implementations ([GH-38309](https://github.com/apache/arrow/issues/38309)).
- A new environment variable, `AWS_ENDPOINT_URL_S3`, has been added which
allows separately overriding the endpoint for S3 operations alone
([GH-38663](https://github.com/apache/arrow/issues/38663)).
### Bug Fixes
- Fixed a bug in the S3 filesystem implementation that could cause a crash
when deleting an object having duplicate forward slashes in its name
([GH-38821](https://github.com/apache/arrow/issues/38821)).
- Fixed a bug where `hash_mean` could silently overflow
([GH-38833](https://github.com/apache/arrow/issues/38833)).
### Improvements
- The S3 implementation now sets the content-type of directory-like objects
to application/x-directory to improve compatibility with other S3 tools
([GH-38794](https://github.com/apache/arrow/issues/38794)).
- Repeated S3Client initialization is now roughly an order of magnitude
faster ([GH-40299](https://github.com/apache/arrow/pull/40299)).
- The MemoryPoolStats implementation has been reworked to re-order loads and
stores which may be an improvement for some allocation-heavy, multi-threaded
applications ([GH-40783](https://github.com/apache/arrow/issues/40783)).
### Substrait
- Support has been added to Substrait for a variety of Arrow types
([GH-40695](https://github.com/apache/arrow/issues/40695)).
- substrait-cpp has been upgraded to 0.44
([GH-40695](https://github.com/apache/arrow/issues/40695)).
## Development
- Added support the mold and lld linkers for building Arrow C++
([GH-40394](https://github.com/apache/arrow/issues/40394),
[GH-40400](https://github.com/apache/arrow/issues/40400)).
### Miscellaneous
- Upgraded ORC to 2.0.0
([GH-40507](https://github.com/apache/arrow/issues/40507)).
- Upgraded zstd to 1.5.6
([GH-40837](https://github.com/apache/arrow/pull/40837)).
- Upgraded google benchmark to 1.8.3
([GH-39863](https://github.com/apache/arrow/issues/39863)).
- Upgraded zlib 1.3.1
([GH-39876](https://github.com/apache/arrow/issues/39876)).
- Various ToString methods now support an optional `show_metadata` argument
which will print metadata that may exist in nested types.
([GH-39864](https://github.com/apache/arrow/issues/39864)).
```
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