This update is focused on support for binary literals, performance improvements and various bug fixes (see full list in our issue tracker).
Other changes from IntelliJ platform and web are also included, see complete release notes.
Download PhpStorm 8.0.3 EAP build 139.1226 for your platform from project EAP page and please report any bugs and feature request to our Issue Tracker. Patch update from the previous version (PhpStorm 8.0.3 EAP build 139.1069) will be available in an hour.
Develop with pleasure!
-JetBrains PhpStorm Team