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From Daniel John Debrunner <...@debrunners.com>
Subject WARNING on trunk status for production use
Date Tue, 07 Dec 2004 01:15:34 GMT
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Andrew McIntyre wrote:

> Hello derby-dev,
>
> Now that we have a release posted and there are new features waiting to
> be checked in, I have branched the current codebase and updated the
> version on the trunk to 10.1.0.0 alpha so that new features can be
> checked in as per the accepted version/upgrade policy.

Now that Derby has a release, it should be noted that the trunk
(http://svn.apache.org/repos/asf/incubator/derby/code/trunk) should be
seen as a development code line and *not* suitable for production use.

Production use of Derby should use official Derby releases or snapshot
builds off the branches (or self built jars off the branches with bug
fixes).

This is because the development code line (trunk):

 - will contain new features that have only undergone limited testing
and may corrupt data and/or return incorrect results. (We hope not, but
you never know :-)

 - may create on-disk database formats that are not upgradable to future
releases of Derby. Databases created by official Derby releases will be
upgradable to future versions.

 - and indeed the alpha version tag explicitly disables upgrade in Derby.


Of course the development code line exists to allow:

  - development of new features with compromising production quality
released code lines

  - early access to new features for testing


Jean, if when you post the Derby release info, could you add a warning
like this to the downloads page. I assume that page will be updated for
instructions on how to download the branch as well as the trunk.

Dan.
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