PostgreSQL 16 Beta 2

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+The PostgreSQL Global Development Group announces that the second beta release of
+PostgreSQL 16 is now [available for download](https://www.postgresql.org/download/).
+This release contains previews of all features that will be available when
+PostgreSQL 16 is made generally available, though some details of the release
+can change during the beta period.
+
+You can find information about all of the features and changes found in
+PostgreSQL 16 in the [release notes](https://www.postgresql.org/docs/16/release-16.html):
+
+  [https://www.postgresql.org/docs/16/release-16.html](https://www.postgresql.org/docs/16/release-16.html)
+
+In the spirit of the open source PostgreSQL community, we strongly encourage you
+to test the new features of PostgreSQL 16 on your systems to help us eliminate
+bugs or other issues that may exist. While we do not advise you to run
+PostgreSQL 16 Beta 2 in production environments, we encourage you to find ways
+to run your typical application workloads against this beta release.
+
+Your testing and feedback will help the community ensure that the PostgreSQL 16
+release upholds our standards of delivering a stable, reliable release of the
+world's most advanced open source relational database. Please read more about
+our [beta testing process](https://www.postgresql.org/developer/beta/) and how
+you can contribute:
+
+  [https://www.postgresql.org/developer/beta/](https://www.postgresql.org/developer/beta/)
+
+Upgrading to PostgreSQL 16 Beta 2
+---------------------------------
+
+To upgrade to PostgreSQL 16 Beta 2 from an earlier version of PostgreSQL,
+you will need to use a strategy similar to upgrading between major versions of
+PostgreSQL (e.g. `pg_upgrade` or `pg_dump` / `pg_restore`). For more
+information, please visit the documentation section on
+[upgrading](https://www.postgresql.org/docs/15/static/upgrading.html).
+
+Changes Since Beta 1
+--------------------
+
+Fixes and changes in PostgreSQL 16 Beta 2 include:
+
+* The default collation provider selected by `initdb` is changed back to `libc`.
+* The behavior of selecting the `C` locale with `libicu` is deferred back to
+`libicu`. On ICU 64 and higher, the `C` locale is obsolete, and ICU provides its
+own mechanism for selecting a locale or throwing an error.
+* Several fixes related to join optimizations.
+* Fix for B-tree code related to the changes introduced by logical decoding
+from standbys.
+* Fix cache lookup hazards when looking up `MAINTAIN` privileges on partition
+ancestors.
+
+Please see the [release notes](https://www.postgresql.org/docs/16/release-16.html)
+for a complete list of new and changed features:
+
+  [https://www.postgresql.org/docs/16/release-16.html](https://www.postgresql.org/docs/16/release-16.html)
+
+Testing for Bugs & Compatibility
+--------------------------------
+
+The stability of each PostgreSQL release greatly depends on you, the community,
+to test the upcoming version with your workloads and testing tools in order to
+find bugs and regressions before the general availability of PostgreSQL 16. As
+this is a Beta, minor changes to database behaviors, feature details, and APIs
+are still possible. Your feedback and testing will help determine the final
+tweaks on the new features, so please test in the near future. The quality of
+user testing helps determine when we can make a final release.
+
+A list of [open issues](https://wiki.postgresql.org/wiki/PostgreSQL_16_Open_Items)
+is publicly available in the PostgreSQL wiki.  You can
+[report bugs](https://www.postgresql.org/account/submitbug/) using this form on
+the PostgreSQL website:
+
+  [https://www.postgresql.org/account/submitbug/](https://www.postgresql.org/account/submitbug/)
+
+Beta Schedule
+-------------
+
+This is the second beta release of version 16. The PostgreSQL Project will
+release additional betas as required for testing, followed by one or more
+release candidates, until the final release in late 2023. For further
+information please see the [Beta Testing](https://www.postgresql.org/developer/beta/)
+page.
+
+Links
+-----
+
+* [Download](https://www.postgresql.org/download/)
+* [Beta Testing Information](https://www.postgresql.org/developer/beta/)
+* [PostgreSQL 16 Beta Release Notes](https://www.postgresql.org/docs/16/release-16.html)
+* [PostgreSQL 16 Open Issues](https://wiki.postgresql.org/wiki/PostgreSQL_16_Open_Items)
+* [Feature Matrix](https://www.postgresql.org/about/featurematrix/#configuration-management)
+* [Submit a Bug](https://www.postgresql.org/account/submitbug/)