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From: Jonathan Ellis <jbellis@gmail.com>
Date: Tue, 18 Oct 2011 07:11:18 -0500
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 <CALdd-ziRtFj7f6wqok5JGNOtBKs8d7iyMwQ83CTc8QdFbotYAg@mail.gmail.com>
Subject: Re: [RELEASE] Apache Cassandra 1.0 released
To: user@cassandra.apache.org
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Thanks for the help, everyone!  This is a great milestone for Cassandra.

On Tue, Oct 18, 2011 at 7:01 AM, Sylvain Lebresne <sylvain@datastax.com> wr=
ote:
> The Cassandra team is very pleased to announce the release of Apache Cass=
andra
> version 1.0.0. Cassandra 1.0.0 is a new major release that build upon the
> awesomeness of previous versions and adds numerous improvements[1,2], amo=
ngst
> which:
> =A0- Compression of on-disk data files (SSTables), with checksummed block=
s to
> =A0 =A0protect against bitrot[4].
> =A0- Improvements to memory management through off-heap caches, arena
> =A0 =A0allocation and automatic self-tuning, for less GC pauses and more
> =A0 =A0predictable performances[5].
> =A0- Better disk-space management: better control of the space taken by c=
ommit
> =A0 =A0logs and immediate deletion of obsolete data files.
> =A0- New optional leveled compaction strategy with more predictable perfo=
rmance
> =A0 =A0and fixed sstable size[6].
> =A0- Improved hinted handoffs, leading to less need for read repair for
> =A0 =A0better read performances.
> =A0- Lots of improvements to performance[7], CQL, repair, easier operatio=
n,
> =A0 =A0etc[8]...
>
> And as is the rule for some time now, rolling upgrades from previous vers=
ions
> are supported, so there is nothing stopping you to get all those goodies =
right
> now!
>
> Both source and binary distributions of Cassandra 1.0.0 can be downloaded=
 at:
>
> =A0http://cassandra.apache.org/download/
>
> Or you can use the debian package available from the project APT reposito=
ry[3]
> (you will need to use the 10x series).
>
> The download page also link to the CQL drivers that, from this release on=
, are
> maintained out of tree[9].
>
>
> That's all folks!
>
> [1]: http://goo.gl/t3qpw (CHANGES.txt)
> [2]: http://goo.gl/6t0qN (NEWS.txt)
> [3]: http://wiki.apache.org/cassandra/DebianPackaging
> [4]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-compress=
ion
> [5]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-improved=
-memory-and-disk-space-management
> [6]: http://www.datastax.com/dev/blog/leveled-compaction-in-apache-cassan=
dra
> [7]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-performa=
nce
> [8]: http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-windows-=
service-new-cql-clients-and-more
> [9]: http://acunu.com/blogs/eric-evans/cassandra-drivers-released/
>


--=20
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com