New IntelliJ IDEA 11.1 EAP build (116.32) is available with Subversion 1.7 support finally built in. Here are some details on the current implementation.
We don’t perform automatic upgrade of your working copies to version 1.7, you can easily do it manually (Changes | Subversion Working Copies | Change).
For big working copies, we noticed that command line client works significantly faster comparing to svnkit library, so we added an option (Settings | Version Control | Subversion) to use it for local status calculation and update (in case when HTTP protocol is used).
Also Subversion properties changes are shown directly in Show Diff dialog now.
If you encounter any issues please report them to our bug tracker.
Also, we included an option into commit dialog to auto-update after commit.
It will help to avoid having your working copy in a mixed-revision state (see details).
– Being in mixed-revision state might affect how moves and renames of folders are done
(items in revisions different than the moved subtree root will be tracked separately, which can be confusing)
– Merge will now fail with an error if the merge target is a mixed-revision working copy
– Also, you will never get 409 conflict because of your own changes (http://subversion.apache.org/faq.html#wc-out-of-date)
However, for big projects, or some special cases like a temporally broken project, you might not want to auto-update each time you commit.