[build2-announce] build2 0.15.0 release candidate is available for testing

[Boris Kolpackov]

We aim to release build2 0.15.0 in the middle of next week with the latest
staged version serving as a release candidate:

https://build2.org/community.xhtml#stage

If you have projects that use build2, we encourage you to try it out and
report regressions or any other issues (installation, etc).

You are also welcome to CI your packages using the ci.stage.build2.org
service (instead of ci.cppget.org) which is running the staged toolchain
and also includes the latest build configurations for all the major
platforms and compilers. If you CI with the staged version of build2, this
service is used by default.

While this release includes a large number of major new features, the NEWS
files are still being updated. We will send a separate note before the
release when the updated NEWS files are available.

Note that this release cannot be upgraded to from 0.14.0 and a from-scratch
installation is required (you can have multiple build2 versions side-by-side;
just pick a different installation location for 0.15.0).

If you are a distribution package maintainer, please also see these
additional notes:

https://lists.build2.org/archives/users/2022-July/001000.html