Though you’ve probably heard the news already, SCPlugin for OS X was recently updated to 0.7. This release is a big improvement over earlier versions of the plugin, and makes working with Subversion on the Mac much easier.

However, if you’re also using the Subclipse plugin with your FlexBuilder install, you may run into some problems after using SCPlugin. Specifically, I was receiving the following error:

Unsupported working copy format
	svn: This client is too old to work with working copy '/path/to/workingCopy/';
please get a newer Subversion client

To fix this, I simply went into FlexBuilder > Preferences > Team > SVN, and changed the SVN interface option to use SVNKit (Pure Java) instead. So, if you’re having a similar problem, then give it a try. May not fix your exact issue, but it’s at least worth a shot.

Thanks to Jack Repenning of the SCPlugin mailing list for helping me figure this out!