What new svn features/tools do you need most of all?

There are several tools that use svn and adds useful external features:

• Graphical diffing/merging files in Araxis tool
• Pre-commit changes in JetBrains Team City build server, etc.

What new features/tools do you need in subversion most of all (one tool description per post)?

From stackoverflow Eugenek

• Pre-Commit scripts. Ours check for files added to a solution/project but not added to SVN, ensure a bugid, and require comments.

  Eugenek : Here's link to my post to similar topic. http://stackoverflow.com/questions/119396/source-code-control-policy#127368
  From Tom Ritter

• The ability to specify whether a particular mime type is to be treated as binary or text. Tagging the correct mime type on application/*+xml (particularly application/xhtml+xml) components of a web-based application causes a lot of undiffable blobs.

  From Zed