PL/Java 1.5.6 and 1.6.0 released

PL/Java 1.5.6 was released two weeks ago as the latest update in
the 1.5 line, which runs on the latest versions of PostgreSQL and Java
back to seriously old versions of both. It added PostgreSQL 13 support
and some feature improvements and bug fixes.

PL/Java 1.6.0, released today, is a notably refactored release
that requires Java 9 or later and PostgreSQL 9.5 or later, and brings
a number of changes from 1.5.x.

Current users of a 1.5.x release should review the 1.6.0 release notes
for possibly necessary changes before updating to 1.6.0.

It includes configurable permissions (finer grained than just 'java'
versus 'javaU'), a smarter SQL generator, and a much-improved build
experience.

Project site: http://tada.github.io/pljava/
Release notes: http://tada.github.io/pljava/releasenotes.html

Selected changes:

* The Java permissions available to 'java' and 'javaU' functions can be
tailored for each case. Language 'aliases' beyond those two can also
be set up with 'CREATE LANGUAGE' and have their own associated
permissions.

* The SQL generator no longer needs to be explicitly told about
dependencies between a new type and the functions that use it, or are
used in its implementation.

* PL/Java functions can now be variadic.

* The build system now takes pg_config values such as CFLAGS into
account to match the compiler configuration used to build PostgreSQL.

* Two continuous integration services now routinely build PL/Java for
Linux (x86_64 and ppc64le), Mac OS X, and Windows (MinGW-w64 and
MSVC), with results visible at GitHub.

Please see the release notes for a more complete list of changes.

Availability:

1.6.0 and 1.5.6 are available from GitHub as source releases,
which build quickly using Maven:

1.6.0: https://github.com/tada/pljava/releases/tag/V1_6_0
1.5.6: https://github.com/tada/pljava/releases/tag/V1_5_6

This wiki page will add links to prebuilt packages that become available:
https://github.com/tada/pljava/wiki/Prebuilt-packages