apache · wesm · Jul 7, 2019 · Jul 7, 2019 · Jul 7, 2019 · Jul 8, 2019
diff --git a/site/README.md b/site/README.md
@@ -36,6 +36,13 @@ gem install jekyll bundler
 bundle install
 ```
 
+On some platforms, the Ruby `nokogiri` library may fail to build, in
+such cases the following configuration option may help:
+
+```
+bundle config build.nokogiri --use-system-libraries
+```
+
 If you are planning to publish the website, you must clone the arrow-site git
 repository. Run this command from the `site` directory so that `asf-site` is a
 subdirectory of `site`.

diff --git a/site/_data/contributors.yml b/site/_data/contributors.yml
@@ -16,10 +16,13 @@
 # Database of contributors to Apache Arrow (WIP)
 # Blogs and other pages use this data
 #
+- name: Apache Arrow Community
+  githubId: apache
+  homepage: https://arrow.apache.org
 - name: Wes McKinney
   apacheId: wesm
   githubId: wesm
-  homepage: http://wesmckinney.com
+  homepage: https://wesmckinney.com
   role: PMC
 - name: Uwe Korn
   apacheId: uwe

diff --git a/site/_posts/2019-07-08-0.14.0-release.md b/site/_posts/2019-07-08-0.14.0-release.md
@@ -0,0 +1,300 @@
+---
+layout: post
+title: "Apache Arrow 0.14.0 Release"
+date: "2019-07-02 00:00:00 -0600"
+author: apache
+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 0.14.0 release. This
+covers 3 months of development work and includes [**602 resolved
+issues**][1] from [**75 distinct contributors**][2].  See the Install
+Page to learn how to get the libraries for your platform. The
+[complete changelog][3] is also available.
+
+This post will give some brief highlights in the project since the
+0.13.0 release from April.
+
+## New committers
+
+Since the 0.13.0 release, the following have been added:
+
+* [Neville Dipale][5] was added as a committer
+* [François Saint-Jacques][6] was added as a committer
+* [Praveen Kumar][7] was added as a committer
+
+Thank you for all your contributions!
+
+## Upcoming 1.0.0 Format Stability Release
+
+We are planning for our next major release to move from 0.14.0 to
+1.0.0. The major version number will indicate stability of the Arrow
+columnar format and binary protocol. While the format has already been
+stable since December 2017, we believe it is a good idea to make this
+stability official and to indicate that it is safe to persist
+serialized Arrow data in applications. This means that applications
+will be able to safely upgrade to new Arrow versions without having to
+worry about backwards incompatibilities. We will write in a future
+blog post about the stability guarantees we intend to provide to help
+application developers plan accordingly.
+
+## Packaging
+
+We added support for the following platforms:
+
+* Debian GNU/Linux buster
+* Ubuntu 19.04
+
+We dropped support for Ubuntu 14.04.
+
+## Development Infrastructure and Tooling
+
+As the project has grown larger and more diverse, we are increasingly
+outgrowing what we can test in public continuous integration services
+like Travis CI and Appveyor. In addition, we share these resources
+with the entire Apache Software Foundation, and given the high volume
+of pull requests into Apache Arrow, maintainers are frequently waiting
+many hours for the green light to merge patches.
+
+The complexity of our testing is driven by the number of different
+components and programming languages as well as increasingly long
+compilation and test execution times as individual libraries grow
+larger. The 50 minute time limit of public CI services is simply too
+limited to comprehensively test the project. Additionally, the CI host
+machines are constrained in their features and memory limits,
+preventing us from testing features that are only relevant on large
+amounts of data (10GB or more) or functionality that requires a
+CUDA-enabled GPU.
+
+Organizations that contribute to Apache Arrow are working on physical
+build infrastructure and tools to improve build times and build
+scalability. One such new tool is `ursabot`, a GitHub-enabled bot
+that can be used to trigger builds either on physical build or in the
+cloud. It can also be used to trigger benchmark timing comparisons. If
+you are contributing to the project, you may see Ursabot being
+employed to trigger tests in pull requests.
+
+To help assist with migrating away from Travis CI, we are also working
+to make as many of our builds reproducible with Docker and not reliant
+on Travis CI-specific configuration details. This will also help
+contributors reproduce build failures locally without having to wait
+for Travis CI.
+
+## Columnar Format Notes
+
+* User-defined "extension" types have been formalized in the Arrow
+  format, enabling library users to embed custom data types in the
+  Arrow columnar format. Initial support is available in C++, Java,
+  and Python.
+* A new Duration logical type was added to represent absolute lengths
+  of time.
+
+## Arrow Flight notes
+
+Flight now supports many of the features of a complete RPC
+framework.
+
+* Authentication APIs are now supported across all languages (ARROW-5137)
+* Encrypted communication using OpenSSL is supported (ARROW-5643,
+  ARROW-5529)
+* Clients can specify timeouts on remote calls (ARROW-5136)
+* On the protocol level, endpoints are now identified with URIs, to
+  support an open-ended number of potential transports (including TLS
+  and Unix sockets, and perhaps even non-gRPC-based transports in the
+  future) (ARROW-4651)
+* Application-defined metadata can be sent alongside data (ARROW-4626,
+  ARROW-4627).
+
+Windows is now a supported platform for Flight in C++ and Python
+(ARROW-3294), and Python wheels are shipped for all languages
+(ARROW-3150, ARROW-5656). C++, Python, and Java have been brought to
+parity, now that actions can return streaming results in Java
+(ARROW-5254).
+
+## C++ notes
+
+188 resolved issues related to the C++ implementation, so we summarize
+some of the work here.
+
+### General platform improvements
+
+* A FileSystem abstraction (ARROW-767) has been added, which paves the
+  way for a future Arrow Datasets library allowing to access sharded
+  data on arbitrary storage systems, including remote or cloud
+  storage. A first draft of the Datasets API was committed in
+  ARROW-5512. Right now, this comes with no implementation, but we
+  expect to slowly build it up in the coming weeks or months. Early
+  feedback is welcome on this API.
+* The dictionary API has been reworked in ARROW-3144. The dictionary
+  values used to be tied to the DictionaryType instance, which ended
+  up too inflexible. Since dictionary-encoding is more often an
+  optimization than a semantic property of the data, we decided to
+  move the dictionary values to the ArrayData structure, making it
+  natural for dictionary-encoded arrays to share the same DataType
+  instance, regardless of the encoding details.
+* The FixedSizeList and Map types have been implemented, including in
+  integration tests. The Map type is akin to a List of Struct(key,
+  value) entries, but making it explicit that the underlying data has
+  key-value mapping semantics. Also, map entries are always non-null.
+* A `Result<T>` class has been introduced in ARROW-4800. The aim is to
+  allow to return an error as w ell as a function's logical result
+  without resorting to pointer-out arguments.
+* The Parquet C++ library has been refactored to use common Arrow IO
+  classes for improved C++ platform interoperability.
+
+### Line-delimited JSON reader
+
+A multithreaded line-delimited JSON reader (powered internally by
+RapidJSON) is now available for use (also in Python and R via
+bindings) . This will likely be expanded to support more kinds of JSON
+storage in the future.
+
+### New computational kernels
+
+A number of new computational kernels have been developed
+
+* Compare filter for logical comparisons yielding boolean arrays
+* Filter kernel for selecting elements of an input array according to
+  a boolean selection array.
+* Take kernel, which selects elements by integer index, has been
+  expanded to support nested types
+
+## C# Notes
+
+The native C# implementation has continued to mature since 0.13. This
+release includes a number of performance, memory use, and usability
+improvements.
+
+## Go notes
+
+Go's support for the Arrow columnar format continues to expand. Go now
+supports reading and writing the Arrow columnar binary protocol, and
+it has also been **added to the cross language integration
+tests**. There are now four languages (C++, Go, Java, and JavaScript)
+included in our integration tests to verify cross-language
+interoperability.
+
+## Java notes
+
+* Support for referencing arbitrary memory using `ArrowBuf` has been
+  implemented, paving the way for memory map support in Java
+* A number of performance improvements around vector value access were
+  added (see ARROW-5264, ARROW-5290).
+* The Map type has been implemented in Java and integration tested
+  with C++
+* Several microbenchmarks have been added and improved.  Including a
+  significant speed-up of zeroing out buffers.
+* A new algorithms package has been started to contain reference
+  implementations of common algorithms.  The initial contribution is
+  for Array/Vector sorting.
+
+## JavaScript Notes
+
+A new incremental [array builder API][4] is available.
+
+## MATLAB Notes
+
+Version 0.14.0 features improved Feather file support in the MEX bindings.
+
+## Python notes
+
+* We fixed a problem with the Python wheels causing the Python wheels
+  to be much larger in 0.13.0 than they were in 0.12.0. Since the
+  introduction of LLVM into our build toolchain, the wheels are going
+  to still be significantly bigger. We are interested in approaches to
+  enable pyarrow to be installed in pieces with pip or conda rather
+  than monolithically.
+* It is now possible to define ExtensionTypes with a Python
+  implementation (ARROW-840). Those ExtensionTypes can survive a
+  roundtrip through C++ and serialization.
+* The Flight improvements highlighted above (see C++ notes) are all
+  available from Python. Furthermore, Flight is now bundled in our
+  binary wheels and conda packages for Linux, Windows and macOS
+  (ARROW-3150, ARROW-5656).
+* We will build "manylinux2010" binary wheels for Linux systems, in
+  addition to "manylinux1" wheels (ARROW-2461). Manylinux2010 is a
+  newer standard for more recent systems, with less limiting toolchain
+  constraints. Installing manylinux2010 wheels requires an up-to-date
+  version of pip.
+* Various bug fixes for CSV reading in Python and C++ including the
+  ability to parse Decimal(x, y) columns.
+
+### Parquet improvements
+
+* Column statistics for logical types like unicode strings, unsigned
+  integers, and timestamps are casted to compatible Python types (see
+  ARROW-4139)
+* It's now possible to configure "data page" sizes when writing a file
+  from Python
+
+## Ruby and C GLib notes
+
+The GLib and Ruby bindings have been tracking features in the C++
+project. This release includes bindings for Gandiva, JSON reader, and
+other C++ features.
+
+## Rust notes
+
+There is ongoing work in Rust happening on Parquet file support,
+computational kernels, and the DataFusion query engine. See the full
+changelog for details.
+
+## R notes
+
+We have been working on build and packaging for R so that community
+members can hopefully release the project to CRAN in the near
+future. Feature development for R has continued to follow the upstream
+C++ project.
+
+## Community Discussions Ongoing
+
+There are a number of active discussions ongoing on the developer
+dev@arrow.apache.org mailing list. We look forward to hearing from the
+community there:
+
+* [Timing and scope of 1.0.0 release][15]
+* [Solutions to increase continuous integration capacity][13]
+* [A proposal for versioning and forward/backward compatibility
+  guarantees for the 1.0.0 release][8] was shared, not much discussion has
+  occurred yet.
+* [Addressing possible unaligned access and undefined behavior concerns][9]
+  in the Arrow binary protocol
+* [Supporting smaller than 128-bit encoding of fixed width decimals][10]
+* [Forking the Avro C++ implementation][11] so as to adapt it to Arrow's
+  needs
+* [Sparse representation and compression in Arrow][12]
+* [Flight extensions: middleware API and generalized Put operations][14]
+
+[1]: https://issues.apache.org/jira/issues/?jql=project%20%3D%20ARROW%20AND%20status%20%3D%20Resolved%20AND%20fixVersion%20%3D%200.13.0
+[2]: https://arrow.apache.org/release/0.14.0.html#contributors
+[3]: https://arrow.apache.org/release/0.14.0.html
+[4]: https://github.com/apache/arrow/tree/master/js/src/builder
+[5]: https://github.com/nevi-me
+[6]: https://github.com/fsaintjacques
+[7]: https://github.com/praveenbingo
+[8]: https://lists.apache.org/thread.html/5715a4d402c835d22d929a8069c5c0cf232077a660ee98639d544af8@%3Cdev.arrow.apache.org%3E
+[9]: https://lists.apache.org/thread.html/8440be572c49b7b2ffb76b63e6d935ada9efd9c1c2021369b6d27786@%3Cdev.arrow.apache.org%3E
+[10]: https://lists.apache.org/thread.html/31b00086c2991104bd71fb1a2173f32b4a2f569d8e7b5b41e836f3a3@%3Cdev.arrow.apache.org%3E
+[11]: https://lists.apache.org/thread.html/97d78112ab583eecb155a7d78342c1063df65d64ec3ccfa0b18737c3@%3Cdev.arrow.apache.org%3E
+[12]: https://lists.apache.org/thread.html/a99124e57c14c3c9ef9d98f3c80cfe1dd25496bf3ff7046778add937@%3Cdev.arrow.apache.org%3E
+[13]: https://lists.apache.org/thread.html/96b2e22606e8a7b0ad7dc4aae16f232724d1059b34636676ed971d40@%3Cdev.arrow.apache.org%3E
+[14]: https://lists.apache.org/thread.html/82a7c026ad18dbe9fdbcffa3560979aff6fd86dd56a49f40d9cfb46e@%3Cdev.arrow.apache.org%3E
+[15]: https://lists.apache.org/thread.html/44a7a3d256ab5dbd62da6fe45b56951b435697426bf4adedb6520907@%3Cdev.arrow.apache.org%3E