DanCoulter

This is a very simple and straightforward plugin to let you automatically blog the commit messages from your public Subversion repository. For now, only one project is supported.
Currently, it requires that PHP have shell access to the “svn” command. This means that it has to run on a *nix server with subversion installed. If you’re not sure whether your server supports this, try typing “svn info” at your shell. If it says that it cannot find the program “svn”, you don’t have it installed.

WP-Subversion

Automatically post commit messages from your public Subversion repository.

Viktor Szépe

Have you ever needed to upgrade a plugin to it’s latest (unreleased) version? 
With SVN Updater you get a new action (Trunk) on the Plugins page.
Development of this plugin is done <a href="https://github.com/szepeviktor/svn-updater" rel="nofollow ugc">on GitHub</a>. 
Pull requests are welcome.

SVN Updater

Works well for such a simple plugin.
WordPress is lacking in a good way to phase users in to major plugin updates. (either you manually install from trunk, or get a surprise as soon as the stable tag changes)
I'd love to see this worked into a more fully fledged "beta tester" plugin that hooks into auto-updates when the dev version is bumped.



Just what I needed

Install any WordPress.org plugin's trunk version from SVN.

WP-Subversion vs SVN Updater