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This post is from the CollabNet VersionOne blog and has not been updated since the original publish date.

Last Updated Mar 21, 2008 — Enterprise Agile Planning expert

Subversion 1.5 Beta1 Released

Enterprise Agile Planning

The Subversion project has issued a beta1 release on the path to the final GA. The next release will likely be rc1 but, as always, that depends on the feedback we get from testers.

CollabNet has created binaries for Linux, Windows and Solaris (with OS X coming soon) from this beta1.  A noteworthy change as we get closer to RC1 is that we are now providing our CollabNet Subversion packaging for all three platforms. Solaris and Windows are new with this beta release. In addition, for all three of these platforms the server installation can automatically install and configure ViewVC as part of the server installation.

You can download these binaries from openCollabNet. There are also updated versions of the CollabNet Merge Client, Subclipse and TortoiseSVN available on this site.

We have a forum where you can post questions, comments or
problems
that you encounter using this version. If after some
discussion a report is indeed deemed a defect, we forward the bug to the
Subversion community using their normal processes. Feedback on the GUI
merge clients will go to CollabNet Engineering.

For those that missed the announcement of the Alpha2 release, here are a few things to be aware of:

  • Subversion 1.5 client has an updated working copy format. Once an SVN 1.5 client updates a working copy it will be converted to the new format. This means that older SVN clients will no longer be able to read these working copies. So either be careful, or be sure to update all your clients to the same version. There is a Python script that you can use to downgrade your working copy to the 1.4 format.
  • Subversion 1.5 server can be used to serve an existing repository, but you will not be able to use the new merge tracking features with this repository until it is upgraded. You have a few options here:
  1. Dump existing repository, then create a new repository using the 1.5 binaries and load the dump file.
  2. Create a new repository using 1.5 binaries and use svnsync 1.5 binary to transfer the contents to the new repository.
  3. Run a new command svnadmin upgrade to upgrade an existing repository. This runs fast as it just updates the internal repository format. There are some downsides to this approach though:
  • SVN 1.5 repositories maintain a new index called the node-origins index  This is needed to speed up certain merge operations. The index will be lazy-populated on upgraded repositories, but can be updated on demand by running a new tool named svn-populate-node-origins-index(.exe). If you have a large repository you will likely want to populate the index. New repositories, or ones that are dumped/loaded or svnsync’ed will not need this.
  • For fsfs repositories, the node-origins index will be slightly faster and take up less disk space if the repository is reloaded or synced. For existing repositories, the index has to be maintained in a separate set of files that takes up extra disk space and I/O.
  • For new 1.5 fsfs repositories, there is a new sharding mechanism for storing revisions on disk. Instead of storing all revisions in one single directory, they are now spread across multiple directories which will be better on certain filesystems.  There is a Python script you can run to shard an exising fsfs repository though.
  • If you were using an earlier version of the 1.5 binaries, note that the on-disk format of the repository has been changed in the most recent builds. You should dump your repository with your current binaries, then install the new binaries, create a new repository and load the repository.
  • Please take the opportunity to give these beta versions on the path to GA a try. Your feedback will lead to a better final release and likely also help us deliver Subversion 1.5 as soon as possible.

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