PhpStorm 6.0.3 Early Access build 129.757 is already available for download.
This build is focused on stability and other bugfixes. More details in tracker.
It also contains important openapi change to allow plugins properly extend type inference system w/o freezing the IDE. We already contacted authors and updated plugins should be available soon. Current plugin versions will have some type-related functionality gracefully disabled.
Patch-update for this build is also available.
Develop with pleasure!
-JetBrains PhpStorm Team