Three days ago Trac 0.12.3 was released. This is a minor release which contains a several fixes including compatibility with Subversion 1.7.
We haven't wasted time and we have already released a new BitNami Trac Stack that includes the just released Trac version. It also bundles Subversion 1.7.1.
You can find the detailed list of fixes for Trac 0.12.3 at:
The improvements and new features in Subversion 1.7.1 since Subversion 1.6 can be found at: