# Baserock 15.25 is released!
## Definitions compatibility
The Baserock reference systems are defined using version 3 of
the definitions format. In 15.19, version 3 was used.
The baserock-15.25 tag of definitions can be built with Morph
from 15.19. This should mean upgrading is fairly simple.
The version of Morph in Baserock 15.25 can build definitions
versions 0, 1, 2, 3, 4, and 5. For more information about these
versions, see here:
## Changes since 15.19
* The OpenStack services added in 15.19 were upgraded to the Kilo
release (tag 2015.1.0).
* A java-build stratum was added, containing the things necessary
to build OpenJDK, and existing reference systems which use Java
were updated to use this. However, this still requires the
injection of a prebuilt JDK binary at build time.
* Deployment extensions were all moved into the same place, the
`extensions` subdirectory in definitions. This allows us to
decouple the interface of the extensions from morph. Previously,
any change to this interface would need a new version of
definitions. Places where names of these are given (the `type:`
field in clusters, and the `configure-extensions:` field in
systems) need to be updated by prepending the name with
`extensions/` to reflect this move.
* If version 5 of the definitions format is used, morph will strip
debug symbols from the binaries it builds by default. The symbols
are put in /usr/lib/debug in the resulting system. This behaviour
can be overridden by using the `strip-commands` field in chunk
* The `install-files` configure extension now allows
* /etc/inputrc added; now the delete key should work correctly.
* Numerous components moved between strata.
* New components added:
* Some components have been updated:
- boost 1.57.0
- btrfs-progs 4.0
- ceph 0.94.1.1
- dbus 1.9.16
- gstreamer 1.0
- mesa 10.6.0-rc1
- qtwebkit 5.4.2
- systemd v220
- zlib 1.2.8
* Updates to Morph, Baserock's build tool, including:
- Support for definitions version 4, which is used as a marker
to cause versions of Morph that do not contain the fix from
 to exit with a version error rather than crashing.
- Support for definitions version 5 (allow strip-commands in
chunk morphologies; set PYTHONPATH when running deployment
extensions to contain the extensions directory)
- Configuration extensions no longer form part of the cache
key for systems.
* Other bugfixes and improvements: see the Git logs of [definitions.git]
and [morph.git] for a full list.
Thanks to everyone who has provided code, documentation, sponsorship or
feedback for this Baserock release!
# How do I get started?
Start with the following page: <http://wiki.baserock.org/quick-start/>
Those who are up to speed with Baserock already can make use of the
'cache.baserock.org' cache server, with the `artifact-cache-server =
http://cache.baserock.org:8080/` option. All artifacts necessary to
upgrade a 'build' system for x86_32 or x86_64 are present in this
# How do I get in contact?
- IRC: freenode #baserock
- Public mailing list: baserock-dev(a)baserock.org
- See also: <http://wiki.baserock.org/mailinglist/>
If you find a bug in Baserock, we'd like to hear from you using one of
the above methods.
The Baserock project welcomes new participants! We hope you enjoy
experimenting with Baserock and look forward to hearing about any cool
things you do with Baserock.