docs: add template for announcement email

Fixes apache#2136.

docs/source/development/releasing.rst

@@ -417,9 +417,58 @@ Be sure to go through on the following checklist:
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- Write a release announcement (see `example <https://lists.apache.org/thread/6rkjwvyjjfodrxffllh66pcqnp729n3k>`_) and send to announce@apache.org and dev@arrow.apache.org.
-
- The announcement to announce@apache.org must be sent from your apache.org e-mail address to be accepted.
+ Write a release announcement and send to announce@apache.org and
+ dev@arrow.apache.org.
+
+ The announcement to announce@apache.org must be sent from your apache.org
+ e-mail address to be accepted.
+
+ Template::
+
+ Subject: [ANNOUNCE] Apache Arrow ADBC 14 released
+ To: announce@apache.org
+ CC: dev@arrow.apache.org
+
+ The Apache Arrow community is pleased to announce the 14th release of the
+ Apache Arrow ADBC libraries. It includes 27 resolved GitHub issues
+ ([1]). Individual components are versioned separately: some packages are
+ on version 0.14.0 and others are now version 1.2.0, with the release as a
+ whole on version '14'.
+
+ The release is available now from [2] and [3].
+
+ Release notes are available at:
+ https://github.com/apache/arrow-adbc/blob/apache-arrow-adbc-14/CHANGELOG.md#adbc-libraries-14-2024-08-30
+
+ What is Apache Arrow?
+ ---------------------
+ Apache Arrow is a columnar in-memory analytics layer designed to
+ accelerate big data. It houses a set of canonical in-memory
+ representations of flat and hierarchical data along with multiple
+ language-bindings for structure manipulation. It also provides
+ low-overhead streaming and batch messaging, zero-copy interprocess
+ communication (IPC), and vectorized in-memory analytics
+ libraries. Languages currently supported include C, C++, C#, Go, Java,
+ JavaScript, Julia, MATLAB, Python, R, Ruby, and Rust.
+
+ What is Apache Arrow ADBC?
+ --------------------------
+ ADBC is a database access abstraction for Arrow-based applications. It
+ provides a cross-language API for working with databases while using
+ Arrow data, providing an alternative to APIs like JDBC and ODBC for
+ analytical applications. For more, see [4].
+
+ Please report any feedback to the mailing lists ([5], [6]).
+
+ Regards,
+ The Apache Arrow Community
+
+ [1]: https://github.com/apache/arrow-adbc/issues?q=is%3Aissue+milestone%3A%22ADBC+Libraries+14%22+is%3Aclosed
+ [2]: https://arrow.apache.org/adbc/current/driver/installation.html
+ [3]: https://apache.jfrog.io/ui/native/arrow
+ [4]: https://arrow.apache.org/blog/2023/01/05/introducing-arrow-adbc/
+ [5]: https://lists.apache.org/list.html?user@arrow.apache.org
+ [6]: https://lists.apache.org/list.html?dev@arrow.apache.org
 
 .. dropdown:: Remove old artifacts
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